| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
DIVISION OF GEOLOGICAL AND PLANETARY SCIENCE SEISMOLOGICAL LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY, PASADENA, CALIFORNIA 91125
DEPARTMENT OF GEOLOGY AND GEOPHYSICS UNIVERSITY OF CALIFORNIA, BERKELEY, CALIFORNIA 94720
Abstract
Broadband observations of three central California earthquakes as recorded on opposite sides of the San Andreas fault zone are studied. The earthquake mechanisms are of the strike-slip type occurring along the fault at epicentral distances between 15 and 30 km. The seismograms obtained at the two sites are distinctly dissimilar in both amplitude and wave shape even though they are at roughly the same azimuth. We suppose that the earthquake excitation is identical for the two sites and that the differences in seismograms are caused by the receiver structure. The problem is idealized by assuming that the first 10 sec of each record can be modeled synthetically with a point shear dislocation embedded in a half-space with a two-layer upper-crustal model appropriate for each site. The results determined by matching the observations indicate that the durations for these events with ML = 4 to 5 are about 0.3 to 0.6 sec. Furthermore, the results demonstrate that accurate estimate of source parameters can only be accomplished after a detailed appreciation of crustal structure.
This article has been cited by other articles:
|
|
 |
|
  M. NIAZI and K.-Y. CHUN Crustal structure in the southern Bering Shelf and the Alaska Peninsula from inversion of surface-wave dispersion data Bulletin of the Seismological Society of America, December 1, 1989; 79(6): 1883 - 1893. [Abstract] [PDF]
|
|
|
|
|
|
P. G. SOMERVILLE, J. P. MCLAREN, L. V. LEFEVRE, R. W. BURGER, and D. V. HELMBERGER Comparison of source scaling relations of eastern and western North American earthquakes Bulletin of the Seismological Society of America, April 1, 1987; 77(2): 322 - 346. [Abstract] [PDF]
|
|
|
|
|
|
W.-Y. KIM, O. KULHANEK, and K. MEYER Source processes of the 1981 Gulf of Corinth earthquake sequence from body-wave analysis Bulletin of the Seismological Society of America, April 1, 1984; 74(2): 459 - 477. [Abstract] [PDF]
|
|
|
|
|
|
M. CAMPILLO and M. BOUCHON A theoretical study of the radiation from small strikeslip earthquakes at close distances Bulletin of the Seismological Society of America, February 1, 1983; 73(1): 83 - 96. [Abstract] [PDF]
|
|
|
|
|
|
R. B. HERRMANN Digital processing of regional network data Bulletin of the Seismological Society of America, December 1, 1982; 72(6B): S261 - S276. [Abstract] [PDF]
|
|
|
|
|
|
C. A. LANGSTON Source inversion of seismic waveforms: The Koyna, India, earthquakes of 13 September 1967 Bulletin of the Seismological Society of America, February 1, 1981; 71(1): 1 - 24. [Abstract] [PDF]
|
|
|
|
|
|
H.-L. LIU and H. KANAMORI Determination of source parameters of mid-plate earthquakes from the waveforms of body waves Bulletin of the Seismological Society of America, December 1, 1980; 70(6): 1989 - 2004. [Abstract] [PDF]
|
|
|
|
|
|
K. KAUFMAN and L. J. BURDICK The reproducing earthquakes of the Galapagos Islands Bulletin of the Seismological Society of America, October 1, 1980; 70(5): 1759 - 1770. [Abstract] [PDF]
|
|
|
|
|
|
D. M. HADLEY and D. V. HELMBERGER Simulation of strong ground motions Bulletin of the Seismological Society of America, April 1, 1980; 70(2): 617 - 630. [Abstract] [PDF]
|
|
|
|
|
|
Y. OHTA, N. GOTO, F. YAMAMIZU, and H. TAKAHASHI S-wave velocity measurements in deep soil deposit and bedrock by means of an elaborated down-hole method Bulletin of the Seismological Society of America, February 1, 1980; 70(1): 363 - 377. [Abstract] [PDF]
|
|
|
|
|
|
D. V. HELMBERGER and G. ENGEN Fine structure of an oceanic crustal section near the East Pacific Rise Bulletin of the Seismological Society of America, April 1, 1978; 68(2): 369 - 382. [Abstract] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
