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U.S. GEOLOGICAL SURVEY, 345 MIDDLEFIELD ROAD, MENLO PARK, CA 94025
Abstract
A method for determining lower crustal structure by comparing residuals of distant events, thereby reducing the effect of near-surface structure on seismic waves, has been tested through a straightforward numerical analysis of teleseismic residuals in central California. The results show a general crustal thinning to the west, with a sharp gradient along the San Andreas fault and a uniform crustal thickness between the San Andreas fault and the Calaveras and Hayward faults.
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S. R. TAYLOR and J. F. SCHEIMER P-velocity models and earthquake locations in the Livermore Valley Region, California Bulletin of the Seismological Society of America, August 1, 1982; 72(4): 1255 - 1275. [Abstract] [PDF] |
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