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Rupture complexity of the 1970 Tonghai and 1973 Luhuo earthquakes, China, from P-wave inversion, and relationship to surface faulting

Zhou, Hui-Lan and Allen, Clarence R. and Kanamori, Hiroo (1983) Rupture complexity of the 1970 Tonghai and 1973 Luhuo earthquakes, China, from P-wave inversion, and relationship to surface faulting. Bulletin of the Seismological Society of America, 73 (6). pp. 1585-1597. ISSN 0037-1106. https://resolver.caltech.edu/CaltechAUTHORS:20140903-114207480

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Abstract

The source processes of the 4 January 1970, Tonghai earthquake (M_s = 7.5) and the 6 February 1973, Luhuo earthquake (M_s = 7.5) in southwestern China were investigated using an inversion technique on the very complex body waves. The two earthquakes were associated with 48 and 90 km of surficial strike-slip rupture, respectively, and the distribution of displacement with distance along the fault was well documented by field studies of both events. The source process for both earthquakes comprised three to four subevents with different moments and rupture durations. These calculated parameters agree well with the field observations and aftershock distributions, particularly in the total rupture length and in the amount and asymmetry of fault displacements relative to the locations of the main epicenters.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://bssa.geoscienceworld.org/content/73/6A/1585.abstractPublisherArticle
ORCID:
AuthorORCID
Kanamori, Hiroo0000-0001-8219-9428
Additional Information:© 1983, by the Seismological Society of America. Manuscnpt received 15 November 1982. This research was supported by US Geological Survey Contract 14-08-0001-21223 and by the Earthquake Research Affiliates of the California Institute of Technology.
Funders:
Funding AgencyGrant Number
USGS14-08-0001-21223
Caltech Earthquake Research AffiliatesUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Caltech Division of Geological and Planetary Sciences3789
Issue or Number:6
Record Number:CaltechAUTHORS:20140903-114207480
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140903-114207480
Official Citation:Hui-lan Zhou, Clarence R. Allen, and Hiroo Kanamori Rupture complexity of the 1970 Tonghai and 1973 Luhuo earthquakes, China, from P-wave inversion, and relationship to surface faulting Bulletin of the Seismological Society of America, December 1983, v. 73, p. 1585-1597
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49194
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:03 Sep 2014 18:55
Last Modified:09 Mar 2020 13:18

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