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Analysis of complex earthquakes and source processes of Longling

Huilan, Zhou and Kanamori, Hiroo and Allen, Clarence R. (1991) Analysis of complex earthquakes and source processes of Longling. In: Advances in geophysical research. Vol.2. International Academic Publishers , Beijing, pp. 119-129. ISBN 7-80003-016-4. https://resolver.caltech.edu/CaltechAUTHORS:20140910-131204413

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Abstract

In this paper, Kikuchi and Kanamori's inversion method on the complex body waves was modified to cover the following: the subevents with geometry parameters of an added minor fault can distribute along the strikes of either the major fault or the minor fault; the rupture direction on the fault plane can be arbitrary. This technique was applied to the 29 May 1976, Longling earthquake (the first one). The results show that this event was caused by the activities of a nearly strike-slip major fault with strike 150° and a vertically dip-slip minor fault with the same strike. About 10 sub-events (6 occurred on the major fault and 4 on the minor fault) and the rupture directivity brought about the very complex P waveforms. Compared with its not very large magnitude, Longling earthquake is an unusually complex one.


Item Type:Book Section
Additional Information:© 1991 International Academic Publishers. We thank Prof. B. A. Bolt for providing the seismogram of BKS. We thank Dr. T. Lay for useful discussion. This research was supported by U. S. Geological Survey Contract 14-08-0001-21223 and by the Earthquake Research Affiliates of the California Institute of Technology.
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Funding AgencyGrant Number
USGS14-08-0001-21223
Caltech Earthquake Research AffiliatesUNSPECIFIED
Record Number:CaltechAUTHORS:20140910-131204413
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140910-131204413
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49547
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:11 Sep 2014 21:56
Last Modified:03 Oct 2019 07:14

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