| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
SEISMOLOGICAL LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY, PASADENA, CALIFORNIA 91125
U.S. GEOLOGICAL SURVEY SEISMOLOGICAL LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY, PASADENA, CALIFORNIA 91125
Abstract
Profiles of ground velocity and acceleration, displayed as a function of epicentral distance, are analyzed for recordings of the 1971 San Fernando earthquake. Three long profiles (>50 km) and three short profiles (<2 km) are studied. Although there is considerable variation in waveforms and peak amplitudes observed along the long profiles, there are also many examples of coherent phases seen on adjacent stations. There are striking differences in the amplitudes and durations of ground velocity observed at stations located on hard rock sites as opposed to stations located within the large sedimentary basins of the Los Angeles area. Furthermore, the San Fernando Basin, which is adjacent to the source area, seems to respond quite differently from the Los Angeles Basin which is about 30 km from the earthquake source area. Ground acceleration profiles, however, show that there is no corresponding change in the duration or amplitude of high-frequency shaking with site characteristics. We infer that the excitation of surface waves within sedimentary basins is the reason that large peak velocities and displacements are observed for soft sites. The ground velocity waveforms are nearly identical along the three short profiles, which are all located within the Los Angeles Basin. Greater variation of waveforms and amplitudes are seen for ground acceleration along these short profiles, although strong phase coherence is still observed.
This article has been cited by other articles:
|
|
 |
|
  G.-Q. Wang, G.-Q. Tang, D. M. Boore, G. Van Ness Burbach, C. R. Jackson, X.-Y. Zhou, and Q.-L. Lin Surface Waves in the Western Taiwan Coastal Plain from an Aftershock of the 1999 Chi-Chi, Taiwan, Earthquake Bulletin of the Seismological Society of America, June 1, 2006; 96(3): 821 - 845. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. L. Pratt and T. M. Brocher Site Response and Attenuation in the Puget Lowland, Washington State Bulletin of the Seismological Society of America, April 1, 2006; 96(2): 536 - 552. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y. Choi, J. P. Stewart, and R. W. Graves Empirical Model for Basin Effects Accounts for Basin Depth and Source Location Bulletin of the Seismological Society of America, August 1, 2005; 95(4): 1412 - 1427. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. Motazedian and G. M. Atkinson Stochastic Finite-Fault Modeling Based on a Dynamic Corner Frequency Bulletin of the Seismological Society of America, June 1, 2005; 95(3): 995 - 1010. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Amplification of Seismic Waves by the Seattle Basin, Washington State Bulletin of the Seismological Society of America, April 1, 2003; 93(2): 533 - 545.
|
|
|
|
|
|
Paleoseismologic Evidence for a Very Large (Mw >7), Post-A.D. 1660 Surface Rupture on the Eastern San Cayetano Fault, Ventura County, California: Was This the Elusive Source of the Damaging 21 December 1812 Earthquake? Bulletin of the Seismological Society of America, December 1, 2001; 91(6): 1417 - 1432.
|
|
|
|
|
|
E. H. Field and the SCEC Phase III Working Group Accounting for Site Effects in Probabilistic Seismic Hazard Analyses of Southern California: Overview of the SCEC Phase III Report Bulletin of the Seismological Society of America, December 1, 2000; 90(6B): S1 - S31. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. B. Joyner Strong Motion from Surface Waves in Deep Sedimentary Basins Bulletin of the Seismological Society of America, December 1, 2000; 90(6B): S95 - S112. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. F. Dolan, K. Sieh, and T. K. Rockwell Late Quaternary activity and seismic potential of the Santa Monica fault system, Los Angeles, California GSA Bulletin, October 1, 2000; 112(10): 1559 - 1581. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. J. Wald and R. W. Graves The seismic response of the Los Angeles basin, California Bulletin of the Seismological Society of America, April 1, 1998; 88(2): 337 - 356. [Abstract] [PDF]
|
|
|
|
|
|
T. Sato, D. V. Helmberger, P. G. Somerville, R. W. Graves, and C. K. Saikia Estimates of regional and local strong motions during the great 1923 Kanto, Japan, earthquake (Ms 8.2). Part 1: Source estimation of a calibration event and modeling of wave propagation paths Bulletin of the Seismological Society of America, February 1, 1998; 88(1): 183 - 205. [Abstract] [PDF]
|
|
|
|
|
|
M. Bouchon, C. A. Schultz, and M. Nafi Toksoz A fast implementation of boundary integral equation methods to calculate the propagation of seismic waves in laterally varying layered media Bulletin of the Seismological Society of America, December 1, 1995; 85(6): 1679 - 1687. [Abstract] [PDF]
|
|
|
|
|
|
H. Yamanaka, M. Takemura, H. Ishida, and M. Niwa Characteristics of long-period microtremors and their applicability in exploration of deep sedimentary layers Bulletin of the Seismological Society of America, December 1, 1994; 84(6): 1831 - 1841. [Abstract] [PDF]
|
|
|
|
 |
|
 L. M. Jones The Magnitude 6.7 Northridge, California, Earthquake of 17 January 1994 Science, October 21, 1994; 266(5184): 389 - 397. [Abstract] [PDF]
|
|
|
|
|
|
X.-S. Hao, K. Seo, and T. Samano Low damage anomaly of the 1976 Tangshan earthquake: an analysis based on the explosion ground motions Bulletin of the Seismological Society of America, August 1, 1994; 84(4): 1018 - 1027. [Abstract] [PDF]
|
|
|
|
|
|
P. SPUDICH and M. IIDA The seismic coda, site effects, and scattering in alluvial basins studied using aftershocks of the 1986 North Palm Springs, California, earthquake as source arrays Bulletin of the Seismological Society of America, December 1, 1993; 83(6): 1721 - 1743. [Abstract] [PDF]
|
|
|
|
|
|
H. YAMANAKA, M. DRAVINSKI, and H. KAGAMI Continuous measurements of microtremors on sediments and basement in Los Angeles, California Bulletin of the Seismological Society of America, October 1, 1993; 83(5): 1595 - 1609. [Abstract] [PDF]
|
|
|
|
|
|
W. SCOTT PHILLIPS, S. KINOSHITA, and H. FUJIWARA Basin-induced love waves observed using the strong-motion array at Fuchu, Japan Bulletin of the Seismological Society of America, February 1, 1993; 83(1): 64 - 84. [Abstract] [PDF]
|
|
|
|
|
|
P. MOCZO and P.-Y. BARD Wave diffraction, amplification and differential motion near strong lateral discontinuities Bulletin of the Seismological Society of America, February 1, 1993; 83(1): 85 - 106. [Abstract] [PDF]
|
|
|
|
|
|
R. J. ARCHULETA, S. H. SEALE, P. V. SANGAS, L. M. BAKER, and S. T. SWAIN Garner Valley downhole array of accelerometers: Instrumentation and preliminary data analysis Bulletin of the Seismological Society of America, August 1, 1992; 82(4): 1592 - 1621. [Abstract] [PDF]
|
|
|
|
|
|
R. W. GRAVES and R. W. CLAYTON Modeling path effects in three-dimensional basin structures Bulletin of the Seismological Society of America, February 1, 1992; 82(1): 81 - 103. [Abstract] [PDF]
|
|
|
|
|
|
A. S. PAPAGEORGIOU and J. KIM Study of the propagation and amplification of seismic waves in Caracas Valley with reference to the 29 July 1967 earthquake: SH waves Bulletin of the Seismological Society of America, December 1, 1991; 81(6): 2214 - 2233. [Abstract] [PDF]
|
|
|
|
|
|
S. HARTZELL and C. MENDOZA Application of an iterative least-squares waveform inversion of strong-motion and teleseismic records to the 1978 Tabas, Iran, earthquake Bulletin of the Seismological Society of America, April 1, 1991; 81(2): 305 - 331. [Abstract] [PDF]
|
|
|
|
|
|
O. NOVARO, T. H. SELIGMAN, J. M. ALVAREZ-TOSTADO, J. L. MATEOS, and J. FLORES Two-dimensional model for site-effect studies of microtremors in the San Fernando Valley Bulletin of the Seismological Society of America, April 1, 1990; 80(2): 239 - 251. [Abstract] [PDF]
|
|
|
|
|
|
H. YAMANAKA, K. SEO, and T. SAMANO Effects of sedimentary layers on surface-wave propagation Bulletin of the Seismological Society of America, June 1, 1989; 79(3): 631 - 644. [Abstract] [PDF]
|
|
|
|
|
|
C. B. CROUSE, Y. K. VYAS, and B. A. SCHELL Ground motions from subduction-zone earthquakes Bulletin of the Seismological Society of America, February 1, 1988; 78(1): 1 - 25. [Abstract] [PDF]
|
|
|
|
|
|
J. E. VIDALE and D. V. HELMBERGER Elastic finite-difference modeling of the 1971 San Fernando, California earthquake Bulletin of the Seismological Society of America, February 1, 1988; 78(1): 122 - 141. [Abstract] [PDF]
|
|
|
|
|
|
H. KAGAMI, S. OKADA, K. SHIONO, M. ONER, M. DRAVINSKI, and A. K. MAL Observation of 1- to 5-second microtremors and their application to earthquake engineering. Part III. A two-dimensional study of site effects in the San Fernando Valley Bulletin of the Seismological Society of America, December 1, 1986; 76(6): 1801 - 1812. [Abstract] [PDF]
|
|
|
|
|
|
J. E. VIDALE Complex polarization analysis of particle motion Bulletin of the Seismological Society of America, October 1, 1986; 76(5): 1393 - 1405. [Abstract] [PDF]
|
|
|
|
|
|
J. C. WILSON and P. C. JENNINGS Spatial variation of ground motion determined from accelerograms recorded on a highway bridge Bulletin of the Seismological Society of America, December 1, 1985; 75(6): 1515 - 1533. [Abstract] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
