M Z3Z ■\o. 1/ V s PROCESSED DATA FROM THE tHYSICAL SCI. UB. UMI «EnSIT-QF.CALIF ? BN li , i -OA^ | 31175 01263 8923 « 3 1989 SAN JUAN BAUTISTA 101/156 SEPARATION BRIDGE AND THE SAN JUAN BAUTISTA FREEFIELD RECORDS FROM THE COYOTE LAKE EARTHQUAKE 6 AUGUST 1979 1983 CALIFORNIA DEPARTMENT OF CONSERVATION DIVISION OF MINES AND GEOLOGY SPECIAL PUBLICATION 64 L'HiV, 'EKe 'Ty Op JUL *im 3 ~MmRY UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY United States Department of the Interior JAMES G. WATT, Secretary Geological Survey DALLAS L. PECK, Director STATE OF CALIFORNIA GEORGE DEUKMEJIAN GOVERNOR THE RESOURCES AGENCY GORDON K. VAN VLECK SECRETARY FOR RESOURCES DEPARTMENT OF CONSERVATION M.G. MEFFORD INTERIM DIRECTOR DIVISION OF MINES AND GEOLOGY JAMES F. DAVIS STATE GEOLOGIST PROCESSED DATA FROM THE SAN JUAN BAUTISTA 101/156 SEPARATION BRIDGE AND THE SAN JUAN BAUTISTA FREEFIELD RECORDS FROM THE COYOTE LAKE EARTHQUAKE 6 AUGUST 1979 U.S. GEOLOGICAL SURVEY MENLO PARK, CALIFORNIA 94025 SPECIAL PUBLICATION 64 OFFICE OF STRONG MOTION STUDIES CALIFORNIA DEPARTMENT OF CONSERVATION DIVISION OF MINES AND GEOLOGY 2811 "0" STREET SACRAMENTO, CALIFORNIA 95816 BY L.D. PORTER* (CDMG) AND A.G. BRADY, P.N. MORK, and V. PEREZ (USGS) 1983 *Presently with Sohio Petroleum Company in San Francisco Digitized by the Internet Archive in 2012 with funding from University of California, Davis Libraries http://archive.org/details/processeddatafro64port PREFACE This joint report is published by both the U.S. Geological Survey (USGS) and the California Division of Mines and Geology (CDMG) and represents the cooperative efforts by the personnel of both government agencies. The report describes the processed data derived from strong-motion records obtained at two stations during the Coyote Lake earthquake of 6 August 1979. Both stations (San Juan Bautista - 101/156 separation bridge and San Juan Bautista freefield) are part of the CDMG network of stations with strong-motion instruments on structures and at freefield stations deployed throughout the State of California. The records were processed using the programs jointly developed by USGS and CDMG. The San Juan Bautista highway separation bridge is an intensely instrumented structure whose sensor location pattern was developed within the framework of CDMG Strong Motion Instrumentation Program in cooperation with the USGS national program on strong-motion instrumentation. The San Juan Bautista freefield record represents the ground response record closest to the separation bridge (distance 4.2 km). This report is the second joint report on the Coyote Lake earthquake processed data. The first report, "Processed Data from the Gilroy Array and Coyote Creek Records from the Coyote Lake Earthquake of 6 August 1979," describes the processing results of records obtained from six freefield instruments within 16 km of the epicenter. It is available from USGS (Open File Report 81-42) and from CDMG (Preliminary Report 24). iii CONTENTS Page Preface iii Introduction 1 Characteristics of the Coyote Lake Earthquake 3 Station Descriptions 5 Records and Digitizations 7 Processing 13 0. Reassembly 1. Uncorrected Accelerograms 2. Corrected Accelerations, Velocities, Displacements 3. Response Spectra 4. Fourier Spectra by FFT 5. Duration Spectra References 19 Appendix. Computer plots of processing 21 San Juan Bautista 101/156 Separation Bridge 22 San Juan Bautista Freef ield 126 ILLUSTRATIONS Figure 1. Location map for the 6 August 1979 Coyote Lake Earthquake, indicating the San Juan Bautista, San Martin — Coyote Creek and Gilroy Array stations 2 Figure 2. San Juan Bautista 101/156 Separation Bridge 6 Figure 3. Location of panels used during digitizing of San Juan Bautista 101/156 Separation Bridge Record 10 TABLES 1. Epicentral, focal, and fault distances (km) 4 2. Station data characteristics 4 3. Record data and instrumental constants 8 4. Digitized measurements from the San Juan Bautista 101/156 Separation Bridge Record 11 5. Peak values of processed data 12 v INTRODUCTION This report contains summaries and plots of the results of completed processing performed on two strong-motion records obtained from the Coyote Lake earthquake of August 1979. Additional copies of this report may be obtained from the Open-File Services Stations, Branch of Distribution, USGS, Box 25425, Federal Center, Denver, Colorado, 80225, or from California Division of Mines and Geology, Office of Strong Motion Studies, 2811 "0" Street, Sacramento, California 95816. Digital data corresponding to the plots of the uncorrected accelerograms; corrected readings of acceleration, velocity, and displacement; and Fourier and response spectra (Volume 1, 2, and 3 of processed data output, respectively) may be obtained on magnetic tape from CDMG at the above address. 37W 36'30' H 2tL^ AUGUST 6, 1979 ^ GILROY % c^ %6 SAN LUIS RESERVOIR /////, \l 3 GILROY ARRAY % 101/156 %, OVERPASS] 0r%^ I SAN JUAN BAUTISTAl -'% ^ HOLLISTER SAGO <&». \ ^ ^ ■ 5 Hi 2 ■f yy. <7/> *M l 1, <.% 11 14 10 ™*> m. i 121°30' 121»00" Figure 1. Location map for 6 August 1979 Coyote Lake Earthquake. The San Juan Bautista stations as well as Coyote Creek and Gilroy Array stations are indicated. From Porcella and others, 1979. CHARACTERISTICS OF THE COYOTE LAKE EARTHQUAKE The following information is based on the preliminary report by Lee and others (1979), describing the August 6 Coyote Lake earthquake and its major aftershocks. The earthquake was of moderate size, magnitude 5.7+0.2, predominantly right-lateral strike-slip, with an origin time of August 6, 1979, I7h05m22.3+0.1s (UTC). The epicenter was located at 27°6.7'N and 121°32.0'W, (+1 km), with an approximate focal depth of 9.6 km. The calculated location of the epicenter is about 1 km to the east of the Calaveras fault trace in the vicinity of Coyote Lake, about 10 km NNE of Gilroy (Figure 1). From calculated aftershock locations it has been estimated that faulting during the main shock extended 20 km to the southeast of the epicenter along the Calaveras fault at depths of between 4 and 12 km. No evidence of significant surface faulting has been found. Uhrhammer (1980) reports on the major seismological data obtained from the Seismographic Station network of the University of California at Berkeley: origin time, 17:05:22.71; epicenter, 37°6.12'N, 121°30.20'W; depth, 6.3 k™; M L =5.9. Reasenberg and Ellsworth (1983) after detailed work on the main shock and the aftershocks report the following data: origin time, 17:05:22.32; epicenter, 37°6.17'N, 121°30.72'W; depth, 8.33 km; M L =5.9. Damage was reported in Gilroy, Hollister, and other nearby communities, where preliminary estimates of Modified Mercalli Intensity (MMI) reach VII. Final intensity descriptions and isoseismal maps are available in the USGS Circular "Earthquakes in the United States," and are published in the annual joint NOAA and USGS publication "United States Earthquakes, 1979." TABLE 1: EPICENTRAL, FOCAL, AND FAULT DISTANCES (km) STATION EPICENTRAL DISTANCE FOCAL 1 DISTANCE FAULT 2 DISTANCE San Juan Bautista - 101/156 Separation bridge 28 30 14 San Juan Bautista Freef ield 30 31 11 1 focal depth = 9.6 km (+2 km, Lee and others, 1979) 2 perpendicular distance to surface trace of Calaveras fault as mapped by Jennings and Strand (1958) TABLE 2: STATION CHARACTERISTICS STATION NUMBER STATION NAME COORDINATES TYPE OF STRUCTURE INSTRUMENT LOCATION DATA SOURCE 47315 San Juan Bautista- 36.862 N 101/156 Separation 121.578 W bridge 47126 San Juan Bautista Freef ield concrete bridge with steel girders 36.846 N one story 121.536 W woodframe building columns, decks, CDMG cone, slab CDMG on grade STATION DESCRIPTIONS The San Juan Bautista freefield station was instrumented with an SMA-1 (#1678) by CDMG June 4, 1974 in the fire station building of the city. The instrument has always remained in its initially installed position. After installation, the station was maintained by the USGS until April 16, 1980, at which time maintenance responsibility was transferred to CDMG. The station is situated on a Quaternary terrace formed by the San Benito River and is underlain by alluvial terrace fill of uncertain thickness (probably greater than 25 m) . The San Juan Bautista 101/156 separation bridge was instrumented by CDMG May 24, 1977 with a twelve channel CRA-1 (#139) system. The bridge was constructed in 1958-59 and consists of six simple spans of welded steel girders with a composite reinforced concrete deck. The superstructure is approximately 3.75 feet deep and consists of five welded steel girders at 7 foot center-to-center spacing. Foundation support for the bridge is entirely on spread footings. Steel girders are supported on steel bearings at abutments and bents. Bents consist of two reinforced concrete columns and all are skewed approximately 35 degrees from normal (Figure 2). Foundation materials beneath the bridge are nearly horizontal beds of moderately consolidated non-marine pebbly-cobbly sandstone interbedded with pebble conglomerate (J.E. Allen 1946; Charles Bishop, unpublished mapping) which represent Pliocene alluvial deposition (Purisima Formation). These deposits in proximity of the bridge are probably less than 15 m thick and overlie granitic basement. 00 t3 •H VJ 43 C o •H « cd a. CD CO >•> I bo •H 4= \0 m H o 4-> CO CD c a CO O bO C •H T3 O a CD u m o c o •H 4J CO •U a 0) •H !-( O -a a c0 o •H 4-1 cO O o (J _ CM cu u 60 •H Pn RECORDS AND DIGITIZATIONS The two records analyzed in this report were recovered from the instruments within a few days of the event and developed at CDMG - Office of Strong Motion Studies. Copies were made for initial studies and for digitizing. Table 3 lists the data for the records and instruments. Table 4 presents digitized measurements from the San Juan Bautista 101/156 separation bridge record. Table 5 includes maximum accelerations scaled from the original records. Components are designated as the direction (azimuthal if horizontal) of positive instrument case acceleration (that is, ground acceleration if the instrument is measuring ground motion). Positive accelerations, together with positive velocity and displacement in later analyses, are located above the time axis on the original recording and in all plots. Positive directions of horizontal components are indicated in Figure 2. The two records were digitized from contact prints of the originals by IOM-TOWILL of Santa Clara, California, on a trace-following laser scanner. The digitizer's least count is one micrometer (10 _t> m) and its RMS error in digitizing a straight line of the photographic quality of the traces on these records is approximately 10 micrometers (Fletcher and others, 1979). For comparative purposes, the largest peak-to-peak excursions on the original records are approximately 15 mm. Each record was digitized in three sections, or frames, of about 9 cm length, and subsequently reassembled to recover the record of approximately 27 sec total duration (Porter and others, 1979). Computer processing of the digitized records, including this reassembly, was performed at the Lawrence Berkeley Laboratory computing center. TABLE 3: RECORD DATA AND INSTRUMENT CONSTANTS STATION EPIC. COMPONENT DAMPING DIGITIZED STATION NAME NUMBER DIST. NO. AZIM. SENSIT. PERIOD FRACTION LENGTH (km) (degree) (cm/g) (sec) (sec) San Juan Bautista- 47315 28 1 337 1.79 .0196 .65 26.8 101/156 Separation bridge 2 UP 1.77 .0183 .57 3 67 1.83 .0197 .57 4 337 1.70 .0186 .57 5 67 1.70 .0183 .63 6 67 1.70 .0193 .61 7 DOWN 1.73 .0192 .57 8 337 1.80 .0190 .61 9 67 1.67 .0183 .61 10 337 1.80 .0198 .64 11 UP 1.77 .0194 .61 12 67 1.85 .0197 .57 San Juan Bautista- 47126 30 1 303 1.80 .0394 .55 28.4 Freef ield 2 UP 1.78 .0389 .55 3 213 1.86 .0395 .60 The record from the San Juan Bautista 101/156 separation bridge required special handling during digitizing because its width (7 inches or 17.5 cm) exceeded that of the digitizer work table (6 cm). To ensure the most accurate treatment of the record the following techniques were used: (1) The record was divided into four panels with three overlap zones (Figure 3). One reference trace was located in each overlap zone and thus common to each pair of adjacent panels. (2) Two butting lines were drawn approximately perpendicular to the traces at 9 and 18 cm from the trace onsets, so that each panel was divided into three frames. The length of each frame was about 10 cm. (3) The traces in each panel were digitized by trace type in the sequence (a) data traces, (b) reference traces, and (c) time traces (if present). The number of traces per panel varied from three to seven. The precision of the method is shown by the relatively small differences (4-20 micrometers) in the separation between butting lines as measured in the doubly digitized overlap zones (Figure 3, Table 4). CD U ro S_ +-> CD E cd CD CD 0) -Q O ro -Q -O -a S- "O -a c +-> C c: 3 =5 =3 o CD o o S- o s- S- CT> ro S_ S_ +-> ro +-> ro rO ro +-> -o +-> rO ro "O -a +-> 4-> OO +-> c CZ C cd a; CD CD -Q -Q O JD o +-> Q. O +-> ro S- +-> O CD cd T3 r--» r^. o CO <£> c: oo o CD r^ S- UD <3- LT) CD o cd O) cd UD o O U- rO ro CD S_ S- o +-> -l-> ro ro ro +-> 4-> +-> ro rO ro "O -a rO I [Bwea Z L 9Ln? d s +J -^tl +-> c: 1 c CD ax CD -Q rrji -Q -^ S-l JxL O -Ml O CD 1 CD ■o CD" ■o 2: a 3 CD" r-^ Q S-l oo O CDI 4-1 oo 1^. CDI S-l CO CD CD O CJ ro ro S- S- +-> +J ro (O 4-> +-> ro -a (O +-> LT> CD -O _^ O CD "O o [^ !£> O cri CD o ro S- +J rO +-> rO •a CD u ro S- CD O CD S- CD <4- CD S- \J CD -O T3 E 13 O S_ CJ) o oo oo CD o ro S- 4-> rO +-> rO -o CD O S- CD CD O ro S- +-> ro +-> ro ■a l CD CJ ro s- +-> CD a c CD l CDI m-i CD 1 S-l +-> c CD -O "O c 3 o S- CT> O ICVl CD O rO S- ro -l-> "rO CDI O' rO' S-l +->! CD' El 10 £ L 3Ued \j [9UBd 0) C to a. o T-l CO o o .J CO a) S-i 3 W> •H TABLE 4 DIGITIZED MEASUREMENTS FROM THE SAN JUAN BAUTISTA 101/156 SEPARATION BRIDGE RECORD COYOTE LAKE EARTHQUAKE OF 6 AUGUST 1979 PANEL TRACE IDENTIFICATION BUTTING LINE INTERSECTIONS (micrometers) BUTTING LINE 1 BUTTING LINE 2 DIFFERENCE reference trace 1 reference trace 2 DIFFERENCE BETWEEN PANELS reference trace 2 reference trace 3 reference trace 4 DIFFERENCE BETWEEN PANELS reference trace 4 reference trace 5 reference trace 6 DIFFERENCE BETWEEN PANELS 97110 192610 95500 97142 192680 95538 55 35 20 97197 192715 95518 91221 192769 95548 97244 192822 95578 38 21 17 97282 192843 95561 97347 192879 95533 97411 192916 95505 9 13 4 reference trace 6 97402 192903 95501 TIME SHIFTS RELATIVE TO PANEL 1 -55 -93 -83 2—76970 11 TABLE 5: PEAK VALUES OF PROCESSED DATA COMPONENT MAX. ACCELERATION MAXIMUM MAX. STATION NUMBER ORIENTATION SCALED DIGITIZED CORRECTED VELOCITY DISPI (g) (8) (cm/sec2) (cm/ sec) (cm) San Juan Bautista- 1 337° .12 .1197 114.80 8.26 1.22 101/156 Separation Bridge* 2 UP .06 .0451 41.92 2.55 .40 3 67° .08 .0785 74.08 4.50 .7C 4 337° .33 .3201 266.5 11.50 1.30 5 67° .20 .1549 148.9 5.21 .69 6 67° .20 .1961 184.7 7.18 .58 7 DOWN .07 .0715 69.6 2.78 .39 8 337° .29 .2852 266.6 13.76 1.30 9 67° .19 .1899 177.3 5.79 .79 10 337° .13 .1184 111.1 8.31 1.12 11 UP .07 .0609 50.39 2.42 .40 12 67° .11 .1061 79.57 4.71 .76 San Juan Bautista- 1 303° .10 .1074 101.7 5.79 1.33 Freefield 2 UP .13 .1227 115.4 4.59 .65 3 213° .11 .1124 108.0 6.49 .90 *See Figure 2 for locations of sensors. 12 PROCESSING Much of the analysis in the first four of the following sections is similar to that of the Caltech data reports (Hudson, 1976) and the data reports of the USGS since 1971. A brief description is included here of analysis steps or of notations that are not covered in the above. 0. Reassembly Because the record from the San Juan Bautista 101/156 separation bridge was digitized in four separate panels, a special procedure was required to produce a composite numerical image from the individual frames: (a) The digitizer outputs for the frames in each panel were joined together mathematically by the reassembly computer program to produce a continuous numerical image of the panel. The same steps were employed as those used during the processing of the records from the 1978 Santa Barbara earthquake (Porter and others, 1979). (b) The panels were synchronized in time by comparing the coordinates of the intersections of the butting lines with reference traces that were common to each pair of adjacent panels. In this manner a common time base was established across the entire record, even though it had been digitized in four separate panels. The panel with the smallest coordinates for the intersections of the first butting line with the reference traces was selected as the base panel and the three remaining panels were shifted in time to match this panel (Table 4). 13 To prevent the saturation of phase one calculations which could result in the production of multiple time values, the digitizer output was examined by an automatic editor for the presence of any points that were either backwards-running or excessively closely spaced in time. If the spacing between successive points dropped to less than 0.0011 seconds the following technique was used to reduce the data density to an acceptable level: (a) The separation between the point in question (point i+1) and the one following it (point i+2) was examined to determine if point i+1 could be shifted forward in time to separate it by 0.0011 seconds from its predecessor (point i) and at least 0.0011 seconds from its successor (point i+2). (b) If procedure (a) could be carried out, then the amplitude associated with point i+1 was adjusted by second-order interpolation using the time-amplitude coordinates for points i and i+2 as anchors. (c) If the data density was too high to permit procedure (a), then the point in question (point i+1) was removed and the editing cycle continued until an acceptable separation was achieved. A log was kept of the points that were shifted and those that were deleted. A summary of the editing for the fifteen traces processed in this manner shows that less than 10 points per trace were interpolated and removed, 1. Uncorrected Accelerograms The digitized reference traces are subtracted from the data traces, and the digitized time marks are used to determine the time scale. The instrument scales the ordinates to accelerations. The components are specified by the direction of positive acceleration of the instrument case 14 (that is, ground acceleration, for a ground-level instrument) and this positive acceleration is plotted herein above the time axis. This convention, using azimuthal bearings for horizontal components, has been in effect with the USGS since 1978. Table 5 contains the maximum accelerations for each component from this digitized data. Discrepancies between values for the peak acceleration when scaled from the original record or from the digitized version are due to two reasons, namely the different interpretation given to the peak' s shape by the staff and the laser digitizer (or its operator), and the different placement of the zero acceleration axis by the staff and the computer program removing the mean acceleration value. A discrepancy of 0.02 g corresponds to 0.36 mm on the original film. 2. Corrected Accelerations, Velocities, Displacements The corrections performed include the following: (a) High frequency Ormsby filtering (low pass) on data at 200 pts/sec with a ramp falling linearly from 23 to 25 Hz. (b) Instrument correction using the natural period and damping, performed on both 50 and 100 pts/sec data. (c) The baseline correction using a low frequency Ormsby filter (high-pass) with a ramp rising linearly from 0.05 to 0.25 Hz. (d) corrected velocity and displacement, including initial values, are derived during the baseline correction. The selection of the filter parameters, namely the cutoff frequency f and the roll-off termination frequency f T> i n the low-frequency filtering in (c) above, was performed as discussed in Preliminary Report 24 (Brady and others, 1981). 15 These filter settings, however, pose a complication for the San Juan Bautista station record, because the displacements exhibited significant large-amplitude long period oscillations beginning at approximately 10 seconds. In order to show that these oscillations were legitimate geophysical signals and not spurious artifacts introduced by the filtering process, three additional calculations with different baseline corrections were performed. The baseline corrections were similar to those used in step (c) above, except that the following linear ramps were used: (a) 0.05 to 0.35 hz, (b) 0.25 to 0.65 hz, and (c) 0.40 to 0.65 hz The ramps were selected in accordance with the criteria developed for the filtering of strong-motion accelerograms (Basil! and Brady, 1978). The purpose of ramps (a) and (b) was to lengthen the ramp and hence shorten the portion of the signal over which the filter acted. The purpose of ramp (c) was to determine the effect of raising the termination frequency f from 0.05 to 0.40 hz while still maintaining a rise in the ramp (0.40 to 0.65 hz = 0.25 hz) nearly the same as that in the filter in the first Coyote Lake report and the processing of the separation bridge accelerogram. The displacements for the corrected data at 50 pts/sec showed that the long-period signals were due to a low-frequency wave which arrived at about 10 seconds after trigger time. Proceeding in this manner it was possible to process all of the records with the same filter parameters. The late-arriving wave may be related to the alluvial basement underlying the San Juan Bautista freefield station. The corrected accelerations, velocities, and displacements in the plotted data are positive when in the direction of the listed components. The peak values are listed in Table 5. 16 3. Response Spectra The linear plots and the tripartite log-log plots of response spectra have been calculated from data at 100 pts/sec, for the slight advantage to be gained in the accuracy of the high frequency components. The Fourier amplitude spectrum appears in the linear plots, calculated at the same period values as the response spectra. The long period content is removed with a ramp starting at 4 sec and finishing at 20 sec. The data tape contains response spectra calculations at both 50 and 100 pts/sec. 4. Fourier Spectra by FFT These spectra are plotted on both linear and log-log axes to accent the particular characteristics at each end of the spectrum. The location of both the low and high frequency ramps are indicated by the positions of f aX \d f.j. in each case. Corrected data at 50 pts/sec were used in calculating these spectra. 5. Duration Spectra The contour plot of the velocity response envelope spectrum indicates at which times the envelope of the velocity response of a 5 percent-damped oscillator passes through various levels of velocity. The oscillators chosen have periods in the range of 0.05 to 4 sec. Their response for the entire duration of the record are used in preparing the plots. The discrete velocity levels chosen, defined by the contour interval, are fractions of the peak velocity response. 17 The duration spectrum is obtained from this velocity response envelope spectrum by adding up the total time for which the velocity envelope is greater than each of the velocity levels. On this spectrum is drawn a series of radial straight lines indicating the number of cycles of oscillation for any oscillator, so that the duration can be quoted in cycles. Although not labelled specifically, these lines represent, 1, 2, 4, 8, ...cycles, as can be readily checked against the axes. Corrected data at 50 pts/sec were used in these calculations. 18 REFERENCES Allen J.E., 1946, Geology of the San Juan Bautista quadrangle, California Division of Mines and Geology, Bulletin 133. Basili, M. , and Brady, A.G., 1978, Low frequency filtering and the selection of limits for accelerogram corrections, Proceedings of the 6th European Conference on Earthquake Engineering, Dubronik, Yugoslavia. Brady, A.G., Mork, P.N. , Perez, V., and Porter, L.D., 1981, Processed data from the Gilroy array and Coyote Creek records from the Coyote Lake earthquake of 6 August 1979, California Division of Mines and Geology Preliminary Report 24 and U.S. Geological Survey Open-File Report 81-42. Fletcher, J.G., Brady, A.G., and Hanks, T.C., 1979, Strong-motion accelerograms of the Oroville, California, aftershocks: data processing and the aftershock of 0350 August 6, 1975, Bulletin of the Seismological Society of America, v. 70, no. 1, p. 243-367. Hudson, D.E., 1976, Strong-motion earthquake accelerograms; index volume, Earthquake Engineering Resources Laboratory Report EERL 76-02, California Institute of Technology, Pasadena. Jennings, C.W. , and Strand, R.G. , 1958 Geologic map of California — Santa Cruz sheet: California Division of Mines and Geology, scale 1:250,000. Lee, W.H.K. , Herd, D.G. , Cagnetti, V., Bakun, W.H. , and Rapport, A., 1979, A preliminary study of the Coyote Lake earthquake of August 6, 1979 and its major aftershocks, U.S. Geological Survey unpublished report, 41 p. Perez, V., 1979, Spectra of amplitudes sustained for a given number of cycles: an interpretation of response duration for strong-motion earthquake records, submitted to Bulletin of the Seismological Society of America for publication. , Porcella, R.L., Matthiesen, R.B., McJunkin, E.D., and Ragsdale, J.T. , 1979, Compilation of strong-motion records from the August 7, 1979 Coyote Lake earthquake, U.S. Geological Survey Open-File Report 79-385 and California Division of Mines and Geology Preliminary Report 25. Porter, L.D., Brady, A.G. , and Roseman, W.R. , 1979, Computer reassembly of multi-frame accelerograms (abstract), Seismological Society of America Annual Meeting, Golden, Colorado. Reasenberg, P., and Ellsworth, W.L. , 1983, Aftershocks of the Coyote Lake, California, earthquake of August 6, 1979; a detailed study, accepted for publication by Journal of Geophysical Research. Uhrhammer, R.A. , 1980, Observations of the Coyote Lake, California earthquake sequence of August 6, 1979, Bulletin of the Seismological Society of America, 70, 1, pp. 559-570. 19 APPENDIX 21 en CO in .— . oo r-> < o or • CD CO — en LH < ^r CL o OT • LU < CD cc QQ — o "D *- o co • or LU LO _J """■ LU CO LU LJ or CJ o< < Z o^ Q CD LU CD^ H h- co (_J IDUJ LU ID or LO_) or o< o r^ > (_> •"■*■ z :*: 3 cn< r»- lu CDQ_ —* co o IDLU o< <*">_ o o o OOUJ CO 1^— * LU E i — I i 01 /G NI N0UVti3~1333V 23 LP O 1^ \- I CD C7> #5 ^>. '-'(NJ O • O — • II m_i OsiQ. o , to UJ ' ~ moo u~> o * 1— o -o ZOCOUJ UJOCMtO OQ(\J -^ ^o Q E <^iu.-* CD O Z • 1 UJ , II -E ' >- H- U_ O UJOh — • aain- (_) l-ooo °UJ z *° _i£cn~ _i uj^n uj z ?<~co<-> <5,f>< a CO c_) to: u ii ct^co uj ot£ to^o ] E £< cj UJ I- o >- o (_) o< CD <£ to Q UJ E < o =3 _) < > o UJ < UJ n UJ CJ < • o o (NJ 33S/33S/W3 N0I±Va3~l333V 33S/W3 A1I30T3A W3 !N3W33V1dSIQ 24 E o to o UJ to 1 — , cj S§ o • • II to_i ego. z UJ E UJ < CO •—I o >-* CJ , CO UJ • — , cooo 'to o • " zonu ^UJOCMtO u CO(M >* ^o Q E CJ o, * au.^ oo o -» oto otototo l-rsi • z «r\j tu , II (njE ' >- UJOh- acrto — huou z «o OO — _) CO UJ > ^;*— i < (X o if < CJ ^to to to . CO . . 1 LU ' — ■ tooo i in o * ENT .979 1— O •(_) zonuj luocsicd mrsj ^ Z. RND/ F .0 AND CM ISPLACE AUGUST oo o ^ oin Lucom • \-(SI1- z • 1 LU . II UJOh aain- h-UOU ,Q< I- o >- o o — ir;o>~ LU ii °< ^z 33S/33S/N3 N0UVy3"l333V 33S/W3 A1I3013A W3 !N3N33V"ldSI0 26 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 1 0,2,5,10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 C_J ^ 100.00 GO LU 40.00 o 20.00 Q_ GO LU cr 10.00 >- cj 4.00 o 2.00 1 .00 40 25 :o4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 3—76970 27 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 2 0.2.5.10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 ^ 100.00 I LU CO 40.00 - f- o 4.00 o LU 2.00 1 .00 40 25 04 .1 .2 .4 12 4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 28 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 3 0.2.5.10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 UNDAMPED NATURAL PERIOD-SECONDS 29 I I I 33s/m-wna±33ds 3annidwv a3ianoj jo 001 30 33S/w3-uinai33dS 3aniiidwv «3ianoj 31 till 33S/w3-wndi33ds 3aniiidwv a3ianod jo 001 32 33S/m-wnai33dS 3an±iidwv- a3ianod 33 33S/w3-wnai33ds 3annidNv d3ianoj jo 001 34 33S/w3-wnai33dS 3annidwv ti3iancu 35 LO 33S/33S/W3-3SN0dS3ti NO UVti31333V 36 i_n — • z: => IM *~~ ' (X x * —l h- <- J <\ 1 o (^ CO UJ OO O O. ccz. • "^ ^ H rlC C_J UJ(/><0 Oljj C0<0°. •CO ^£ t cn CO | oS^ Q Q_ >(_) UlO co°ro CNJ^ Q^ -)q:o LU coolo Q_ 2 «M o •— ' ZDLU 1 C\J< |— oo QL "t LU^ ~< CCEL 1979 10,20 FROM ~2H oo •LU < *Q — 'CL ^OLOyj LjJ > "™ ™" "^^m"^^™ «I_^^fc«fc, CD m O D < o o o o o c o o o o o c D CD CD t CM 33S/33S/N3-3SN0dS3d N0I±Vd33333V 37 33S/33S/N3-3SN0dS3ti NO I lVti31333V 38 33S/N3-3SN0dS3d A1I3013A 39 LO H Q_ CO LU CO O Q_ CO >- H LJ O hsl en -z. • I lo oon ' (_) CD— • COOLTI (\J Uh • h-z =)LU I LOCK^n OLI° ctxnj 2 - ODO o or LU < LU q: OLTIqj 13 •CO <(NJ0O •< CDOCL O Q < CD M r^co 1 1 1 1 1 1 ■ 1 1 ■ 1 1 1 1 1 1 1 1 . i iii * ^ : ■ I I I ■ 1 I ■ ill IVI I CO < q:u_ o CO LO C\j ■ ■ ' » I I I I I I I I I 1 1 1 1 I o C\J 03S/W3-3SN0dS3ti A1I3013A 40 rvj cr h- CJ LU CL- OT) LU CO O Q_ CO UJ q: >- o LU ro o oo a: Z • 1 — in Q_ C\J oor i CO< o LJ o—- o h- h- CD— • -)tt o COCJUl C\J Uh • Hz Z5LU 1 C_J o ldq: LO OLU O r^CL • * — 1 o cr>(\j Z (—> r^ • ct cno u_ < LU q: OLOqj ^ -co cc ro uj cm a in £c ^ 10 a cm <_> UJ a <=> c^g uj * a ss UJ QC > UJ o UJ ... to a: (/> CO < a ae CD -> CO u to o on o < co o CO to < o a a- o co UJ< CC CD (/> o O -J «o Z + o C\J o CM I tn to « o LP. □ LP D j» CO (M — S0N0D3S-Q0Ici3d "IVdfUVN QidWVONn tS Ho — uj CJCO > CD CM CM CM CM O CM CO CD ~*CO o z UJ .CM ' ' 00 < CO CM o • — • — I I J q CM O CM I 01/0-1333V 42 1<0 en (M — SQN033S-Q0Id3d IVdfUVN Q3dWVQNn 01/9-1333V 4—76970 43 o o -J X to «° Z o UJ o o q: n uj m a or rsj < a a o CD -5 W) <-> ♦- z> in o CD o CJ UJ > a o ^ „g< uj ' a SS uj a uj 00 . ^< z a o a a co z UJ < a: cd UJ CO >- O n to z + in to i o i in in o □ j. a. r> (M — S0N033S-Q0Id3d "IVdfUVN 03dWVQNn (M o rsi CO J CO ~"*tr> o z Z.cj UJ en cm ' « CO CO - (\l o «- _ O — 01/9-1303V 44 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE. 5 PERCENT DAMPING BANO PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 1 RESPONSE DURATION-SEC 45 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPES PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 2 5 9 14 RESPONSE DURATION-SEC 46 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE. 5 PERCENT DAMPING BAND PASSEO FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 3 2 4 6 RESPONSE DURATION-SEC 47 (_) or in h- UJ in CD I L O en 00 <\J CD CJ (NJ c\j o (NJ o CD in CD CD -,1 1 £ 1 1 ~L "^r m o (M ^r "^r <\j o r\i *- rsj i — 'o Ol/G NI N0IlVd31333V 48 in CO <\j o CO CDQ z o c_) OOLU to J r*». Q E CD — - in - co ro o or CD C\J L J. J_ L X J_ (\j "h- z^ z UJ c_> h-CL COO, cnoo o • O •(_) ooolu OCsJCO 5 o 'O o in °-=>-z ° * ts>z? coin — z • I ii r ■ v ~< Q >- CO 0 O xcr E 1 CO a. c_) co CJ lu. ct <° 8< a iun a - 1 <^co O LU l_J O >- o o o < o 33S/33S/UI3 N0IlVd3~l333V o o o O (M O (\J O (NJ Csl I *- 1 W3 1 33S/N3 !N3N33V1dSIQ A1I3013A 50 (_) LU CO in o _ LJ CD o • o I • n lo_j f\JQ_ CO z LU E LU C_> I LO 0)h- r^ z o>lu — CO l-a. coo, cooo o • o «0 or*> lu OCsJCO CO oini ^o^° ° Q-nm CD- CO -r "-* co lo r\j — < (-eg . Z -LO II T ' >- h.^UJOh u ur uou ^lucd; ^ CO Q CO o_ (_) LU CO (_) Si-cj £ in°< >- o 33S/33S/W3 N0I±V6 , 3"1333V 33S/W3 A1I3013A W3 !N3W33VldSIQ 51 ^b > »v L>°° '-'in o • O 1 o • ii LO_l CSJQ. <_> . to 1 UJ ■ .— i 1/lOD i in o • ENT .979 Ho «o zoniu UJOCsJlD CDOsJ ^ r ECK/ F .0 ANO CM ISPLACE AUGUST OO CO ^ o — ujcoin • 1— (\jr^ >-° z • 1 UJ . II t£>E ' >- LUOK accin — huou 33S/33S/UI3 N0I±Vd3"1333V 33S/N3 A1I3013A W3 !N3N33V1dSI0 52 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 4 0,2,5,10.20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 CJ ^ 100.00 E LU on LU 40.00 ° 20.00 Q_ 00 LU cr 10.00 >- c_j 4.00 o 2.00 1 .00 .40 .25 \ )< y. r— t— 7 1 /\ y\ \\ ~/y\ ' A' 1 / \ *_/^S > \. ■rv\ j Y>1 W v> ,-' IfM 1 Jf £ 7s\ \ X ' \> /X \/Y * J r\c r i /^N i/\ y« /Si /Ti >A\ 2//V i . 04 • 1 2 4 > i 1 1 2 UNDAMPED NATURAL PERIOD-SECONDS 53 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 5 0,2,5,10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 CJ ^ 100.00 CJ on 40.00 <=> 20.00 Q_ en LU ex. 10.00 >- f- lj 4.00 o _j f 2.00 1 .00 .40 25 .04 . 1 .2 .4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 54 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 6 0,2.5,10.20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 ^ 100.00 E l LU CO 40.00 <=> 20.00 Q_ CO LU OL 10.00 >- h- cj 4.00 o LU 2.00 1 .00 40 25 :o4 .1 .2 .4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 55 D3S/w3-wnai33dS 3aniiidwv dBianod do 001 56 LO O I LO cn\— r^ -z. lu — CD o hsj o o < 1— u- COO • LO LU -J LU LJ AUGU N/T 1 O O < CD CO o^<\i li_q: ohP LU or Q. CO LU Q ZD < o: no C\J < ' ^O co co . < Q_ QLH LUO OU. < LU/*: co £ .££ -Jim o LU o >- o C_) 33S/W3-wndl33dS 3Qn±I1dWV d3Idn0d 57 33s/ui3-wna±33ds 3anuidwv a3 1 anod do 001 58 33S/W3-Ulfld±33dS 3QniIldUV d3Idfl0d 5—76970 59 335/N3-WDdl33dS 3QniIldWV d3IdD0d 30 001 60 33S/w3-wnai33dS aaniiidwv a3ianod 61 33S/33S/UI3-3SN0dS3ti N0IJ_Vti31333V 62 33S/33S/W3-3SN0dS3ti NO I _LVti3~1333V 63 LO LJ CO Q_ OC coH LUCQ CO < ^ °- o£ Q_ > COO LU rvi o ~z. • _m q_(\j q: o CD—. CO cro C-JLO LJl- <£ i_no:Ln cr OLl)° LJ LJ < O cnc\j (DO E o O CO CD < OLHuj o -co i i ''■■''■■'■■'■'■'■■'■ i i i i i i . ■ i i i i i i i i i i ■ ■ ■■ ■ i i i i i i i i i i i i i i i i ■ i i i i i i i i i i ■ o o o LD O O O O O O CO O O O C\J O o o r^co J n o CJ •co a : lti^ LU CL 33S/33S/M3-3SN0dS3ti NO I !Vd31333V 64 LO z cr h- LJ LU o_ co LU CO o CL CO at >- ^r o GO cr ~z. • I ,in Q_(\l con ' co CJ 00 — ■ COCJLn uh - CO LJ O i_n cr lh LU o cncxj r^ - cno o or < LU CL OLHuj 13 -co CD OQ_ O a -z. < CD '■'»'■'»■' I I I I I I I I I I I I ■ I 1 1 ■ I ■ I ■■■ 1 I I I I I I I I I ■ I I I I I I 1 1 I I I I I CO < C£L ■ i i i i i i i ■ ■ ■ ■ ■ i ■ i i ■ i i ■ i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i n q o o CO o LD o o (\J o LO o o o i_n o 33S/N3-3SN0dS3a A1I3013A 65 m cr i_n LlJ^ CO en < cos 21 > LUoo (_J >-£ h- hvl o CM LU CD en < E° cjlo C\J h- • LU I uo CCLTI LU° CL ' °5- o OLOuj <(\J0O f— •< in or cm I- • <_J uj i eg Q. —I O uj or LU O UJ £< o a. co UJ a: >- CD O T or H - co CO + < O CL •*- _ ae UJ ^ o CD ■ ~5 • CO O « (_) | « 1- O co • en 1 • • • n ! ■ 1 ■ r^ lLsJ ^■1 \, V ■ a> 1 r^ * , en co 1 g 1 < 3 < CMj * • <^y ■ 1 * -^ /^tW?'W • CM >^™^» /TyA/ ll/Tllfi , 1 O &ggi — — — ^^ ^^||0>^«TErfyW 1 E3 ) UJ """ ^^^J^IiliisE 10 ^ *^ -rf *'' N ; - •™* 11 1 ' to I 1 3 CM CNJ CM CM O CM . CO . & CO o z z° UJ CO CM . E • 00 • CD O ' » » CO CM — SQN033S-00Icl3cl IVbTllVN 03dWV0Nn CO CO I o oi/o-n 68 o I Eo h7 LU O o • q: co 5S ot eg H • uj i UJ Q. — IO uj a uj ° UJ §° a-o z uj < a: co >■ \- <_> o tn ct h- 10 to < a. UJ o CD CO to o to o to r CO + in in 1 o in □ in 1 o a -L. J. J- (SJ C\J - - CM (SJ „ ° - 00 . ■ CD """co ! ; 1 z ■ LU ! CO , • CM ' ] E « • - c^^ o»- J f *» • 00 "1 , BS. • CO 2 t - 1^^ *" "S P 1 "- t - CM i t • f" " r-> i — 1 — 3 L.. 1 . CO CM — S0N033S-Q0ia3d "IVbTUVN Q3dWVQNn Osl o 01/9-1333V 1 69 o 2. CO ■< rsi O X _ o or° <->uo- z o UJ O (_) q: n UJ uj i °-9 CO oo < Q. or UJ CD -) CO (_) 3 in o OD a, —I o uj or > UJ o UJ UJ ? g* Q. CO O < CO o UJ < or cd >- c_) o LU to (_) ii to z Z3 LO CM I O (NJ O (Nl I in in i o in □ in + i in o (\l □ N -t. (\j CM 00 CO CO CM CO CO eg CO CM — S0N033S-Q0ia3d IVdOlVN Q3dWVQNn CM O CM 0I/9-1333V 70 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE, 5 PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 4 GO Q o (_J Q O •— • q: uj Q_ < q: Q UJ 1 CL < UNITS=CM/SEC [^ 10-20, sg 20-30. ^40 + •".:: 30-40. • - \ * ■ j ^*^y ^\* 7* * / * — ■ ■ >^* •••%j ^^v** rr *i — n/cz ^^^^ 4 8 RESPONSE DURATION-SEC 12 71 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE. 5 PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 5 UNITS=CM/SEC 5-10. ^10-15. 15 + 2 4 6 RESPONSE DURATION-SEC 8 72 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE, 5 PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 6 UNITS=CM/SEC 15-20. 10 RESPONSE DURATION-SEC 73 en _j o — <\j l l h- 01 /0 NI N0IlVd313D3V Csl H oo CO Os/ (\J O 74 en ro en _« en oo < — GO cc mr ^ o ^° o °° ' LU ^ LJ < Q UJ \- LJ LU QC CC CD LJ COLU H o (-co =>LU ID in _j o< f^ > cn< r^ lu en a. en o zdlu h- UD CD I L CD CD CD CD CD CD CD CD cm — « (\j f\j — i I I 01/9 NI I I (\J — « — C\J N0UVd313DDV 6—76970 75 -^ o • O 1 LO o • II LO_J CvJQ. (_) i | LU 1 cooo 1 LO o • en r- cn l-o • <_> 1- zonLU 2 LUOCsJCO LU 03 <\J >«. E ^»o < •XL • (_) LULu _l QO 00 CL 1 — . ON co QCOLO • •— • 1— (NJ(\i CD O z LU «^E • 1 h- Lt_ O LUOh- — • ccor in — ■ (_> 1— ooo O LU < O X t- or < LU z •O _J en — _J LU > — LU RAMPS OF EC/SEC. VE O 1- < orl- _J or CO ID LU^ <0 T (0 _j^CLLuil^ LU^OT ^Z OT < £°Oo (_>'-' O ^ -CO LU .LTI_jr* II OT -CL "-! a^n lu 1 , o •— ^ o i_> Q< I- o o C_) o 33S/33S/W3 N0UVd31333V 33S/W3 A1I3013A UI3 lN3N33V1dSIQ 76 °z co*-' ^ o • o — LP O • II lo_j (\ICL o . CO LU — . cooo LO O • ENT 979 1— O •(_) zonuj LUOCvJCO QD* Z -*o Q Z ° < ISPLACE AUGUST QO CD ^ ON ZCOLO • |— CsjCO °CO z • — LU . II ooz ' >- LUOh- OrOTLO — f-C_>OC_> °LU Z "° _I^O^— _l LU<^ u_LU Z°<~ or UJ co=) L£ lu LU^ 1 13 — ■ Z? C_) ,.,o.< ID o >- o (_> Q LU or o o or c_> c_) < 33S/33S/W3 N0I1V«31333V o o O CM T 1 o 33S/UI3 A1I3013A o c\j I <\J I WO _LN3W33V~ldSIQ 77 CJ LU co 5 ^ <_j >- CJ o o • o 1 LP O • ii LO_l (\jcl cj i CO 1 LU ' ^^ 1 cooo 1 ^ o • CD 2 h-o • (_J »- zonu z LUOCNJCO LU OQCsJ — s. r ECK/ F .0 AND E UJ LJ < 1- CO o ID < o _1 oo CT> a. ^ or- co LUCOin • •— • h-<\iLn Q CD o z • LU . II >-" cr»r ' >- K o UJOh •— • ttorin •— • (_) hUOU O LU < z • O _) CT>~ _J > SS CRA 13 UAL TIME RAMPS OF LU > Z o 1- < o X CL < LU O LU CO (_> o: LU UJ < z q: o U_ _J < 15 SJB OVERPA PLOTTED AT EO PASSED. WITH CO _j UJ (_J < Q LU 1- r CJ ro r- r- LU II OC LU < _J LU h- o _i O (_) DMG 3 ATA IS IS BAND LU CJ (_> < CO >- CD C_> o CL O LU z> _j < > O tt LU < LU Ql <_) < • 33S/33S/W3 N0IlVd3"l333V 33S/UI3 A1I3013A N3 !N3W33V1dSI0 78 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 7 0.2,5,10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 100.000 10 20 UNDAMPED NATURAL PERIOD-SECONDS 79 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 8 0,2,5,10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 ^ 100.00 z (_J I LU 00 40.00 o 20.00 Q_ CO LU en 10.00 >- h- lj 4.00 o _l t! 2.00 1 .00 40 25 :o4 . 1 .2 .4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 80 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 9 0,2,5,10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 lj £| 100.00 CJ on 40.00 o 20 .00 a. CO LU q: 10 .00 >- h- lj 4 .00 o _i LU > 2 .00 1 , .00 40 25 :04 .1 .2 .4 12 4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 81 — — (\J I I I 33S/W3-wna±D3dS 30niIldNV d3Idf10d dO GOl 82 lo o 1 LP CD U CD — . •"" \ O o • < cr i uo LO coo < Q_ CC Z o q: or UJ or o (__) < o Q OHUO < LOQ. mo o< Q O >- o 33S/ND-wnai33dS 3annidwv a3ianoj 83 CM — « — i — « — • C\J 33S/w3-wnai33ds 3anuidNv d3ianoj jo 901 84 33S/w3-wnai33dS 3annidwv a3ianoj 85 in o o h- < QC LU CJ < o ZD Od h- C_) LU Q_ CO (J) CD LU DO 3°7 UJ CD O CD O CO £oD Q O z: h- ct < LU < Ct I uo LO CO CD CO ' LU Q_ O Od tfct O <~ o Q ,00 LU ^<-^co LUc.COoO ~ < OT .LHCL < LU I- O >- o <_J Hoo o L o LO o uJ- LOcO •Q. (_J I >- CJ LU o° LU Ct LD O CD h- O LO O -L LO O (\j — . LD I O j- LO (\1 I D3S/ND-wncll33dS BQfUIldNV dJIaTIOJ JO 001 ITT* . I I 86 33S/W3-Uinai33dS 3QniIldNV dBIdflOd 87 33S/33S/N3-3SN0dS3y NO I IVd 33333V 88 33S/33S/N3-3SN0dS3d N0I±Vti31333V 89 33S/33S/N3-3SN0dS3ti N0IJ_Vti31333V 90 in r^ GO Q ~ZL en O o LU • CO GO 1 Q in O • C\J LU Q_ o • _l C\J < o: LO • ID < . oQ E < 33S/N3-3SN0dS3d A1I3013A 91 7—76970 LP 33S/N3-3SN0dS3a A1I3013A 92 Z x P^ CD O uctz • ml- — ^ Q-c/^x; ' COc/)<° - IDUJ I I— uo OLLJO _J o r LU *0 > OLOlu ^ "CO t~* ex ° o ^iA GO LU C\J Q. LM o m .° r»- Ho CT> ->in t^ o: cm cn 1- • — * <_) 11.) 1 o < o • CD LU O CL <=>r — I O lu cr > U- z: LU ° LU £- C_) \- II CO 1- (_> o z CO (\l — ■ SQN033S-Q0ia3d "lVtilUVN Q3dWVQNn 94 oo CL » \- o co in i CO i < o o_ ^r or LU ^ o CD —) CO <_> LU CO o II CO 1 O CO in o • ! • ■ • ■ • ! 1 ■ • ■ — ■ CD en o en i o ID < CD O i o csi V/, 9> O i o • ; ■ o n + o in CO CM — SQN0335-Q0Id3d IVdfUVN Q3dWVQNn o co^ — .LU (_)CO -»£ LUC_> > CM C\J CNJ o csj CD CD *^co o z rS LU CO CM I CD CO - (\J O »- CO oi/o-iBo: 95 en oc \- co CO < o_ cr LU > o CD —> CO c_> + LO *-• in 1 ■ • ■ o ! • ■ • ! • . • r^. — en r^ * CT> LO —* i o i O ZD < CD # O (_) LU CO E <_> ii CO I LO LO D o CM). l-CJ ~LU OCJCO — .o^ -JE LUCJ > (M <\l CM O CM 00 CO —"co Q LU CO CM ' ~*LU J E . • oo - CO CO CM — . SQN033S-Q0Id3d IVoTUVN Q3dWVQNn CM CM O «— I- 01/9-133 96 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPES PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB'OVERPASS TR 7 4 CO o o LU O O cr LU Q_ < cr < Q LU 1 Q_ < UNITS=CM/SEC ;;; 2.5-5.0. j\j\ 5.0-7.5, f}}?: 7.5 + - - -\ ^4- ■ - ■/ ^>*"W /- ^H \ RESPONSE DURATION-SEC 10 97 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPES PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 8 4- Q ~ZL O (_) LU Q O i— * a: < cr < Q UJ 1 Q_ H < UNITS=CM/SEC --10-20. ^20-30. :•:•:•:• 30-40, ^40-50. B| 50+ ;>y .... ■ ... .1 / si - - i ~ -^"7 ' ' ' ^y '^^^^J. * * m r Sm l_**A^ /s^ii*' Y/rir^^iSi •^f^^pr^ 5 i ' ^mS3^^m^ ... 4 8 RESPONSE DURATION-SEC 12 98 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE, 5 PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 9 4 on o o LJ UJ i Q O -42 < cr < Q UJ 1 Q_ < UNITS=CM/SEC •- 5-10. ^ 10-15. ^ 15 + . . • - - -\ - - -/ — l / ^v \vos - • • - y — -> s ^Mzzzt*^^^-. •**** t»i, S v v C i <--^^-f * ------ - - - - ^->-^ r *^ sy^^.'.^^T! 2 4 6 RESPONSE DURATION-SEC 8 99 o o CO oo CD CM rsi o I 1 X I 1 cm I 01/9 NI N0UVd313D3V 100 (_) o< < 2" o <\j - r^~. - in L O LO O LO O CO c\j in o in i — i 01 /0 NI N0UVd313DDV 101 CO LP O 1^. en • II m_i (\»CL (_) , to lu ' ~ tooo n o • J-O •(_) zonuj LUOOsICO e~^o q e uj, q •!=(_) _igoo — co-jjzcom • — ^ I— rgoo •Xouj I » I-., UJOh- ~)±:a:a: lo~ u°huou _ I^OT — ct UJ toz> lJ - _i !*■ a. uj u 7 q: Sg-< 3 LU .LO_l> II . o ■— j? <_> E £< (_> <=>< o >- o <£ o LO CM O CO o z o (_) UJ into 1 UJ E LO <\J I 33S/33S/W3 N0I±Vcl31333V 33S/UI3 A1I3013A W3 lN3W33V1dSIQ 102 in o ~- u <_) UJ to (_) >- o o • • II in_i (\ICL , tooo ' PO O - m h-o •<_> 2 ~ UJ O <\j to UJ " 0O (\J >. t_) 10 O CtLL. oo i/v org itotn^r — ■ "*■ I— (M • O^ Z -CM >-°~Z ' >- ~- Jtaam — o^»-oo<_> o u z .o (_) *=tn < q: < iu o 2 t_> < (_) to- I 33S/33S/UI3 N0I±va31333V 33S/W3 A1I3013A W3 lN3W33V1dSIQ 103 CJ UJ CO CJ, >- CJ cj O o • o I • II lo_i (MQ. i ^ i en 1 cooo n o • .h-o «CJ h- X z o co uj zLliJO(M(/) UJ U GD(\J lu.o (_) -J^OO ~ 0.=;^. on co-?ujcoin • -g<\JUJ , II 1-^ tuoh — ybcKQrm — u u huou o u z .o _i£cn~ _j z ?<~co<-> oForhX'uj a: "-* co z> "- uj ui uj^cc ^E <_J~UJ| — »CJ ug>< 3 o .mujriin 15 SJ PLOTT PASSE L=79. UJ CORR COYOTE LAKE, DMG 3 DATA IS GRAM IS BAND VALUES ACCE o LU CJ a- 33S/33S/N3 N0I±Vd3~l333V 33S/W3 A1I3013A W3 lN3W33V"ldSI0 104 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 10 0,2,5.10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 CJ ^ 100.00 E CO 40.00 <=> 20.00 Q_ CO LU a: 10.00 >- h- cj 4.00 o ^ 2.00 1 .00 40 25 :04 . 1 .2 10 20 UNDAMPED NATURAL PERIOD-SECONDS 105 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 11 0,2,5,10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200, ,00 (_) L±J CO 100 .00 z: CJ 1 40 .00 CO Z7 o 20 .00 o_ CO LU cr 10 .00 >- h- LJ 4 .00 O LU 2.00 1 .00 ■ .40 .25 V — v^ v/ ^ •X y> V* y*x ' V X / ^ ► Jk J \^/ yxy 5 \ yf* V / >o 6 V rX\ i yy X. ^ §tt z ^\/ y*X V f V \ \> ' \. y \> 4 \ \ > \ \x\ ♦ j _i_j ab A /i ^^_ >OvS 4u T04 .1 .2 .4 12 4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 106 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB OVERPASS TR 12 0,2,5,10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 r 400.00 200.00 CJ ^ 100.00 H CJ I LU CO >- CJ o 40.00 <=> 20.00 Q. CO LU cr 10.00 4.00 2.00 - 1 .00 .40 .25 :o4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 8—76970 107 — . -. (\j I I I I 33s/w3-wnai33ds 3aniiidNv d3ianod jo 001 108 33S/w3-wnai33dS 3anuidwv a3ianod 109 .1 I I I 33S/wD-wna±33dS aaniiidwv d3ianod jo 001 no 33S/W3-Uinai33dS 3QniIldUiV d3Idf!0d 111 I I 33s/w3-uina±33ds aannidwv a3ianoj do 001 112 33S/W3-wnai33dS BQnilldWV d3Idfl0d 113 h- LD LU Q_ GO O rvj 31 O GO O Q_ GO LU cr »-CL<\J y I < CL q: < < cr lu LU LJ < UJ — v UL o — 'uo v* CD o GO CO < LTlLU GO ^ •< CD OCL < GO 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 OOOO OOOO ^- C\J o 00 000 CD CD CD CO ^ (\l 33S/33S/M3"3SN0dS3d N0I±Vd31333V 114 LO cr \- rvi GO q: o ldo -z. • •—LP. CL«M 5~ I (/>£°° ^ Q_ ,n C0 po ^??cr CO CJU1 CM •— 'tluj I h D uo ^ rvLO LUcn^o LJ < (J) o — ) *co =)CD 0Q - O z CO < CD °° < ■""" ' ' imi mil 11 11 1 1111 11 1 11 11 111 mil 11 1 11 • r^co o mo CJ o LJJ •oo Q 1111 iiiii 111 11 1 1 111 11 mini ill 1 O O 00 O O o o CD o o o o 33S/33S/U3"3SN0dS3d N0I±Vti31333V 115 i_n q: (_JC\J co CO < a. o CO o Q_ ooS LU CO Oo Z) _ m CL C\J r i < c_) o • CO _J < (\J C_> 1—4 o H 1- o ceLO Q_ • LU LJ CJ < CD^O LD h- CD O O CO 00 < LPlU •co OvJcO •< OQ. Q -z. < CD ■ i ■ i 1 1 1 1 1 1 1 1 » ■ 1 1 1 1 1 1 1 1 i LULU ' ' ' . ■ i i . t i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i o o (\J o o o o o 00 O O CD r^co Q (_> •CO oo , Q o LU Ql o •-J c\j< q: iinP LO C\J 33S/33S/M3-3SN0dS3ti N0I±Vd31333V 116 i_n en h- C_) LU Q_ CO LU CO O Q_ CO LU cr >- o M o Q_ q: LU CO C_) o CJ °E° tZuj 1 £lu° LU LU O < CO o LU cr LTlyj <\Jor> •< OCL O < CD 1 1 1 1 1 1 1 1 1 1 1 i 1 1 1 1 1 1 * '■''''■' | ' |>| ■ 1 1 1 1 1 1 1 ill 1 1 1 . r^CO O CO >< cru. . . 1 ■ ■ I ■ ■ ■ 1 ■ 1 1 . ■ I 1 I t I I . I I I ■ 1 I I 1 I I I I 1 t 1 1 I I 1 1 1^ Q o o o 00 o CD O o C\J 33S/N3-3SN0dS3d A1I3013A 117 cr f- Q_ co LU CO o Q_ CO ixi o fvZ • ^ — .LO j- i Q_ OH < CO co 0un LO o H uo o:Ln r- UJ o < q: CO co OCL ° o < CO ■ ■ ' ■ ' i i i i i i i i ■ i i i i i i i i i i i i i i i i i t i i i i i i i i i i t ri q in o C\j i_n o ui o 33S/N3-3SN0dS3d A1I3013A 118 i_n LJ UJ CL (\j rvj o 1 ■ i ■■'■*■«■■ i i ■ «■ » i i i i i i » i i i i i i i i i . i i i i i i i i i i#i ii > i O 33S/W3-3SN0dS3d A1I3013A 119 o en H • (_> UJ i cr co to < Q. ce UJ >• o CD ~> co (_) »- r> in o en CO LO Q. —I O UJ ct > u_ UJ Q- Q CO z LU < CC CD o < CO o (_) o CJ UJ to CJ II CO z 3 LP CM I O (SI o CM I en en i o i LP □ LO + 1 LO O (\J □ o Ho «uj CJCO -iE UJCJ CM (M O (M . oo JU >i_ co Jo CM CM CO CO o UJ CO CM CO CO cm CO CM — SaN033S-Q0Id3d IVdniVN Q3dWVQNn o «— ' Q cm o cm I 0I/9-1333V 120 m (\j — SQN033S-Q0Id3d "IVdlUVN Q3dWV0Nn 01/9-1333V 121 o "* o CM" LU > <_> LUO > en eg — SQN033S-Q0Id3d "IVdfllVN Q3dWVQNn 0I/9-1333V 122 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPES PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 10 UNITS=CM/SEC 15-20. 10 RESPONSE DURATION-SEC 9—76970 123 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPES PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 11 RESPONSE DURATION-SEC 124 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE. 5 PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB OVERPASS TR 12 2 4 6 RESPONSE DURATION-SEC 125 z: < a o o a oo r- T (£> <\J — —* •— < • 21 CO r- (NJ -J (NJ u_ — - UJ • UJ a U_ ->r r-. GO O CO 00 CM < 21 o ^ UJ <->w l_ I- CO o ^^ UJ => o r ^ > z * z> &>< r«- uj O>0l (\j 00 O . o 00 10 cv 01/0 Nl N0I1V8313D:»V 126 01/0 NI NOUVa313D3V 127 in*-* \ , , o °^r o • o — • II CJ LO_J \- rsjo. D LT> ^OO s ^2°o So,*"™ 3 = g "§5 L0 °£co 000 id r.in • -o lZ rvjin DO -CD -O DU_ JO UJ or en H-c_> CO — I II >- OH LO — OO •O LU COLU U_ -HO LU 'H <- o c_> o I II o • COLUO -)»— UJ co|— CO OCO CD_J< <\JQ_ CL i ,— . UJ LUO£ O CD^ < t^co o~- or o o or LU, c_> o < o o (\l I o o CM 33S/33S/N3 N0I±Vd'3~1333V 33S/UJ3 A1I3CH3A 128 W3 !N3W33VldSIQ CJ LO O lu I CO CJ CJ >- CO 000 O • • II in_j (\JO_ co LUO> ujcd id CJ — < o o o CM o o - •CJ colu CM CO u_< o o CLcofsj or» co id r.' en co — • OOT !Z C\J • -< T" I " >- oo£ ' >- l-cor^£ol- •— o co ~ ; en ~ c_> --5:00 ou. z: -o JO< _J or or or ;=: CD LU CJ C_) -co uj «X;H« 11 or luo or ^ o< CJ-J UJ h- o >- o CJ Q.Q. UJO or z < HCO <~ o 33S/33S/UI3 N0I±Va3~1333V 33S/UI3 A1I3013A W3 lN3W33VldSIQ 129 o LU I to (_J LU CO «£ o • O I • II LO_J C\JCL CO LO v 'OQ LU CT> .4; r-, ^ ^^OsJCO 00 coD'^rjcnr- i CD II IO LU 00 JO cr or lu< _ILU u_ LU x co t£ <-> :^<3 o ODLUQ [ XJ< C h OCO^ co_i<7 CO LU • or LU or m o< LUC>£ .oorz:^ °- J z<- o -^co °* or j? < o 1 33S/33S/N3 N0I±Va'31333V 33S/UI3 A1I3013A N3 ±N3W33V3dS10 130 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB FREEFLD TR 1 0.2.5.10.20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 ^ 100.00 r | LU CO UJ 40.00 ° 20.00 CL co UJ cr 10.00 >- h- CJ 4.00 o 2.00 1 .00 40 25 * fc :04 .1 .2 .4 12 4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 131 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB FREEFLD TR 2 0.2.5.10.20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 1000.00 400.00 200.00 LJ ^ 100.00 CJ I UJ GO UJ 40.00 <=> 20.00 Q_ UJ cr 10.00 >- h- cj 4.00 o 2.00 1 .00 .40 25 04 .1 .2 .4 12 4 10 20 UNDAMPED NATURAL PERIOD-SECONDS 132 RESPONSE SPECTRA 06 AUG 1979 1705 UTC SJB FREEFLD TR 3 0.2.5.10,20 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ LJ UJ CO LJ i 1 1 i CO o G_ CO LlJ a: y h- <_> o I LU 1000.00 400.00 200.00 100.00 40.00 20.00 10.00 4.00 2.00 1 .00 .40 .25 .AX j i i ii , 1 . tXl , XIX < I :o4 . 1 .2 .4 1 I \ I 10 20 UNDAMPED NATURAL PERIOD-SECONDS 133 <_> O UJ l^sj OCT) •— i r^ h-CJ) q: UJh- _JCO LUZ5 LJLD (_>Z5 << q: o UJ Q o o O i o CO — .OvJ U_tD a Ooff =>o q: I-uj UJ < Q_ Z) coo X LUh- QCt 2' CO o LTl o ruj iuE cc< co oo UJ(_J V to u_< ■ CD . o >- o 33s/ui3-wna±33ds 3aniiidwv aBianoj jo 001 134 33S/ui3-wna±33dS 3Gnnidwv d3ianoj 135 33S/W3-Wfldl33dS 30niIldUlV d3 1 dROd dO 001 136 o LO O — X ocn — >r^ or _JCO LUZD OO UD << U_ UD OO lu- DO or h-uj <_>i*r LU< CL ZD COO X bJH oa x>< ao do OT Y- LO (\J I O O • CO (NJ OO cd ^h- - o 33S/W3-wndl33dS 3QniI1dWV d3 I dflOJ 137 c_> in o OCT> •— «r^ I— en q: LUh" _ico LU ZD UG CJZD << U_ CD OO CO LU UJ OT O ivj O O (\Jo O CO or HP or CD LT» I— LiJ^CNJ UJ < CL ZD too X UJl- oor =>< f-LU Q. • Ili- <~ or< LUCJ or - IDlxJ CO ID O UJO or a: gqQ — )LU CO «°£ h- o >- o 33S/w3-wnai33dS 3oniiidwv asianoj 30 ocn 138 03S/ui3-wnai33dS 3oniiidwv d3ianod 10—76970 139 UO ZD q: h- cj LiJ Q_ GO LU OO o Q_ GO UJ cr o cr. rvi o z • _ «m Q_C\) UJ UJ or CO CO cr o <"\J CL ' QC i^ Ll)n LJ CD LJ ~* ° ) o? ; < CD UJ q: o < CD O i i i i i i i i i i i i t i i i i i i i » i i i t i i i i i i i t i i i i i i i i i i i i i t i i i i i i M '■ » o CD O LP O o en o o c\i <— • 33S/N3-3SN0dS3d A1I3013A 145 S0N033S-Q0ia3d "IVtifUVN 03dWV0Nn o 01/9- 146 S0N0D3S-Q0Id3d "lVdDlVN Q3dUIVQNn 0I/0-1333V 147 VELOCITY RESPONSE ENVELOPE SPECTRUM. 5 PERCENT CRITICAL DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ Q ° 3 UJ I Q ■J 2 - UN1TS=CM/SEC DO'S. 06 AUG 1979 1705 UTC SJB FREEFLD TR 3 < CC ID Q UJ a. k i Q 2% S 2 I. UJ Sf-2 5-10. g^lO-15. ||l5-20. 20 + 10 12 14 16 18 20 TIME - SECONDS 22 24 VELOC! CM/SE -I 1 I I I I I I I ■ ■ I I I I I I I 1 L _l I I I 148 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE. 5 PERCENT DAMPING BANO PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB FREEFLD TR 1 5 9 14 RESPONSE DURATION-SEC 149 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPE. 5 PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB FREEFLD TR 2 4 UNI TS=CM/SEC 2.5-5.0. 7.5-10.0. ^ 1 5.0-7.5. 10.0 + v/A. 1 CO s Q z: o ^ ^ 3 ■ XT* x <^"^ 1 i .... Q O • * cr LU y~/ Q_ -J 2 < • " •[• 'J . . r*r^- en ID h- < Q LU 1 ■ L— Q_ — "~ * j* ^ H < *£S/^ t-r-iH! ZD n » » i p 1 c RESPONSE DURATION-SEC 24 150 DURATION SPECTRUM OF THE VELOCITY RESPONSE ENVELOPES PERCENT DAMPING BAND PASSED FROM .050- .250 TO 23.00-25.00 HZ 06 AUG 1979 1705 UTC SJB FREEFLD TR 3 4 8 12 RESPONSE DURATION-SEC 76970-650 2-83 1,500 LDA 151 THIS BOOK IS DUE ON THE LAST DATE STAMPED BELOW BOOKS REQUESTED BY ANOTHER BORROWER ARE SUBJECT TO IMMEDIATE RECALL D£0 . ^ FEB 6 1993 SEP 24 1992 JAN 2 6 W LIBRARY, UNIVERSITY OF CALIFORNIA, DAVIS Book Slip— Series 458 in > Z <— c > Z in -• > n O 30 Q CO -n TO O > 7* > TO CD n c cr n Q > W •"^ 3D m Q O o m > > C Z O Q C -, in i o