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Geological Criteria for Evaluating Seismicity

Allen, Clarence R. (1975) Geological Criteria for Evaluating Seismicity. Geological Society of America Bulletin, 86 (8). pp. 1041-1057. ISSN 0016-7606. http://resolver.caltech.edu/CaltechAUTHORS:20150114-124143156

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Abstract

This paper argues that the geologic record, and the late Quaternary history in particular, is a far more valuable tool in estimating seismicity and associated seismic hazard than has generally been appreciated. Those parts of the world with the longest historic records of earthquakes — some 2,000 yr for Japan and the Middle East and 3,000 yr for China — are the areas that should give us the greatest pause in using historic records for extrapolations, because earthquakes in these regions show surprisingly large long-term temporal and spatial variations. The very short historic record in North America should, therefore, be used with extreme caution in estimating possible future seismic activity. The geologic history of late Quaternary faulting is the most promising source of statistics on frequencies and locations of large shocks.


Item Type:Article
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http://dx.doi.org/10.1130/0016-7606(1975)86<1041:GCFES>2.0.CO;2 DOIArticle
http://gsabulletin.gsapubs.org/content/86/8/1041PublisherArticle
http://bulletin.geoscienceworld.org/content/86/8/1041PublisherArticle
Additional Information:© 1975 Geological Society of America. Manuscript received by the Society February 12, 1975. Address as Retiring President of The Geological Society of America, Miami Beach, Florida, November 1974. In addition to those specifically cited in the text, I am deeply indebted to numerous groups and individuals in many parts of the world for assistance and participation in field studies. I particularly appreciate the assistance of various governmental organizations and educational institutions in Turkey, Greece, Bulgaria, Japan, Philippines, China, and Pakistan. Foreign travel was supported by UNESCO, National Science Foundation (U.S.-Japan Cooperative Science Program), National Academy of Sciences (Committee on Scholarly Communication with the People's Republic of China), Carnegie Institution of Washington (G. K. Gilbert Award), and the California Institute of Technology (John Barber Fund). I appreciate critical review of the manuscript by A. L. Albee, H. Kanamori, and R. P. Sharp.
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UNESCOUNSPECIFIED
NSFUNSPECIFIED
National Academy of SciencesUNSPECIFIED
Carnegie Institution of WashingtonUNSPECIFIED
CaltechUNSPECIFIED
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Caltech Division of Geological and Planetary Sciences2569
Record Number:CaltechAUTHORS:20150114-124143156
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150114-124143156
Official Citation:CLARENCE R. ALLEN Geological Criteria for Evaluating Seismicity: Address as Retiring President of The Geological Society of America, Miami Beach, Florida, November 1974 Geological Society of America Bulletin, August, 1975, v. 86, p. 1041-1057, doi:10.1130/0016-7606(1975)86<1041:GCFES>2.0.CO;2
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53719
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:14 Jan 2015 23:52
Last Modified:14 Jan 2015 23:52

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