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Determination of source parameters of mid-plate earthquakes from the waveforms of body waves

Liu, Hsui-Lin and Kanamori, Hiroo (1980) Determination of source parameters of mid-plate earthquakes from the waveforms of body waves. Bulletin of the Seismological Society of America, 70 (6). pp. 1989-2004. ISSN 0037-1106.

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The source parameters and stress drops of five mid-plate earthquakes were determined by matching the synthetic and observed far-field P waveforms in the time domain. The stress drops estimated from these mid-plate events are on the order of a hundred to a few hundred bars. These values are significantly higher than those for interplate (30 bars) and intraplate (100 bars) earthquakes which occurred near the plate boundaries. The difference of the earthquake stress levels between mid-plate and plate boundary events may suggest a lateral variation of stress level in the lithosphere and provide important constraints on the driving mechanism of plate motion.

Item Type:Article
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URLURL TypeDescription
Kanamori, Hiroo0000-0001-8219-9428
Additional Information:© 1980 Seismological Society of America. Manuscript received March 19, 1980. We would like to thank Wai Ying Chung for assistance in the early phases of this study, Tom Heaton for critically reading the manuscript, John Cipar for useful discussions, and Seth Stein for comments on the manuscript. This research was supported by the Earth Sciences Section, National Science Foundation Grant EAR 78-11973.
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NSFEAR 78-11973
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Caltech Division of Geological and Planetary Sciences3364
Issue or Number:6
Record Number:CaltechAUTHORS:20140902-102429931
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49102
Deposited By: Tony Diaz
Deposited On:02 Sep 2014 20:04
Last Modified:09 Mar 2020 13:18

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