Strength of stick-slip and creeping subduction megathrusts from heat flow observations
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- Xiang Gao
- Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China.
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- Kelin Wang
- Pacific Geoscience Centre, Geological Survey of Canada, Natural Resources Canada, 9860 West Saanich Road, Sidney, British Columbia, V8L 4B2, Canada.
書誌事項
- 公開日
- 2014-08-29
- DOI
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- 10.1126/science.1255487
- 公開者
- American Association for the Advancement of Science (AAAS)
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説明
<jats:title>Strong yet creeping megathrust faults</jats:title> <jats:p>Powerful faults in subduction zones, called “megathrust faults,” produce the largest earthquakes on Earth. Gao and Wang use heat flow data to show that when the faults subduct jagged sea floor, they generate tamer earthquakes than do faults that subduct smooth sea floor. The rugged sea floor brings irregularities into the fault that cause it to deform slowly over time, which results in a comparatively higher fault strength and lower seismicity. The finding has a direct impact on assessing regional earthquake and tsunami hazards.</jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6200" page="1038" related-article-type="in-this-issue" vol="345" xlink:href="10.1126/science.1255487">1038</jats:related-article> </jats:p>
収録刊行物
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- Science
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Science 345 (6200), 1038-1041, 2014-08-29
American Association for the Advancement of Science (AAAS)
