Propagation of Slow Slip Leading Up to the 2011 <i>M</i> <sub>w</sub> 9.0 Tohoku-Oki Earthquake
-
- Aitaro Kato
- Earthquake Research Institute, The University of Tokyo, Tokyo, Japan.
-
- Kazushige Obara
- Earthquake Research Institute, The University of Tokyo, Tokyo, Japan.
-
- Toshihiro Igarashi
- Earthquake Research Institute, The University of Tokyo, Tokyo, Japan.
-
- Hiroshi Tsuruoka
- Earthquake Research Institute, The University of Tokyo, Tokyo, Japan.
-
- Shigeki Nakagawa
- Earthquake Research Institute, The University of Tokyo, Tokyo, Japan.
-
- Naoshi Hirata
- Earthquake Research Institute, The University of Tokyo, Tokyo, Japan.
書誌事項
- 公開日
- 2012-02-10
- 資源種別
- journal article
- DOI
-
- 10.1126/science.1215141
- 公開者
- American Association for the Advancement of Science (AAAS)
この論文をさがす
説明
<jats:title>Before Tohoku-Oki</jats:title> <jats:p> Recordings by Japan's dense seismic network in the days and weeks before the 2011 <jats:italic>M</jats:italic> <jats:sub>w</jats:sub> 9.0 Tohoku-Oki earthquake provide an opportunity to interrogate what caused the dynamic rupture of one of the largest earthquakes on record. Using a method to extract small earthquakes that are often obscured by overlapping seismic waves, <jats:bold> Kato <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="705" related-article-type="in-this-issue" vol="335" xlink:href="10.1126/science.1215141">705</jats:related-article> , published online 19 January) identified over a thousand small repeating earthquakes that migrated slowly toward the hypocenter of the main rupture. Based on the properties of these foreshocks, the plate interface experienced two sequences of slow slip, the second of which probably contributed a substantial amount of stress and may have initiated the nucleation of the main shock. </jats:p>
収録刊行物
-
- Science
-
Science 335 (6069), 705-708, 2012-02-10
American Association for the Advancement of Science (AAAS)