| Annual modulation of triggered seismicity following the 1992 Landers earthquake in California | |
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MedLine Citation:
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PMID: 10952308 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The mechanism responsible for the triggering of earthquakes remains one of the least-understood aspects of the earthquake process. The magnitude-7.3 Landers, California earthquake of 28 June 1992 was followed for several weeks by triggered seismic activity over a large area, encompassing much of the western United States. Here we show that this triggered seismicity marked the beginning of a five-year trend, consisting of an elevated microearthquake rate that was modulated by an annual cycle, decaying with time. The annual cycle is mainly associated with several hydrothermal or volcanic regions where short-term triggering was also observed. These data indicate that the Landers earthquake produced long-term physical changes in these areas, and that an environmental source of stress--plausibly barometric pressure--might be responsible for the annual variation. |
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Authors:
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Gao; Silver; Linde; Sacks |
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Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: Nature Volume: 406 ISSN: 1476-4687 ISO Abbreviation: Nature Publication Date: 2000 Aug |
Date Detail:
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Created Date: 2000-08-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0410462 Medline TA: Nature Country: ENGLAND |
Other Details:
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Languages: Eng Pagination: 500-4 Citation Subset: - |
Affiliation:
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Department of Terrestrial Magnetism, Carnegie Institution of Washington, DC 20015, USA. sgao@ksu.edu |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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