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  1. 防災科研関係論文

Fault Heals Rapidly after Dynamic Weakening

https://nied-repo.bosai.go.jp/records/5328
https://nied-repo.bosai.go.jp/records/5328
32917819-7c2c-41b3-ac92-aab51518f08d
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Fault Heals Rapidly after Dynamic Weakening
言語
言語 eng
著者 Kazuo Mizoguchi

× Kazuo Mizoguchi

en Kazuo Mizoguchi

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Takehiro Hirose

× Takehiro Hirose

en Takehiro Hirose

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Toshihiko Shimamoto

× Toshihiko Shimamoto

en Toshihiko Shimamoto

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Eiichi Fukuyama

× Eiichi Fukuyama

en Eiichi Fukuyama

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抄録
内容記述タイプ Other
内容記述 How rapidly fault strength recovers after an earthquake is an important question for understanding the earthquake generation mechanism in seismic cycles. Here we show in laboratory experiments where a fault weakened dynamically at sub-seismic slip rates (similar to 85 mm/sec) recovers its frictional strength logarithmically with time and the healing rate of 0.2-0.3, one order of magnitude greater than those in previous studies. The fault can completely recover its frictional strength to preslip level within one day. We suggest that immediately after an earthquake a slipped fault surface can regain its potential to trigger the next earthquake, which might have important implications for forecasting future large earthquakes.
言語 en
書誌情報 en : BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA

巻 99, 号 6, p. 3470-3474
出版者
言語 en
出版者 SEISMOLOGICAL SOC AMER
ISSN
収録物識別子タイプ ISSN
収録物識別子 0037-1106
DOI
関連識別子 10.1785/0120080325
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