Strain Buildup in the Northeast Japan Orogen with Implications for Gigantic Subduction Earthquakes
Strain Buildup in the Northeast Japan Orogen with Implications for Gigantic Subduction Earthquakes
复制标题
日本东北部造山带的应变积累对巨大俯冲地震的影响
DOI：
10.18814/epiiugs/2014/v37i4/003
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发表时间：
2014
期刊：
影响因子：
3.1
通讯作者：
Y. Ikeda
中科院分区：
文献类型：
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作者：
Y. Ikeda
虽然最近的GPS观测使我们有可能精确而广泛地探测地壳应变，但我们还没有通过任何大地测量方法观测到造山带应变积累和释放的整个周期。从地震预测的角度来看，我们需要从GPS获得的应变数据中提取弹性应变。然而，我们没有任何（实用的）地球物理方法来区分弹性和非弹性应变的GPS数据。基于2011年东北9.0级大地震的教训，我们建议利用地质学的方法（以及思维方式）定量估算非弹性应变积累，从而评估可能导致大地震的现今弹性应变积累。本文回顾了2011年东北地震的历史，并与世界上其他巨大（Mw ≥ 9.0）俯冲地震进行了全球比较。
Although recent GPS observations have made it possible to detect crustal strain precisely and extensively, we have not yet observed a whole cycle of strain buildup and release in orogenic zones by any geodetic methods. From the viewpoint of earthquake forecasting, we need to extract elastic strain from GPS-derived strain data. However, we do not have any (practical) geophysical method by which to discriminate between elastic and inelastic strains from GPS data. Based on the lesson from the 2011 Tohoku earthquake of Mw 9.0, we propose here that geological methods (and ways of thinking as well) should be used to estimate inelastic strain buildup quantitatively, thereby to evaluate present-day elastic strain buildup, which may eventually cause gigantic earthquakes. We review here a case history of the 2011 Tohoku earthquake, and present a global comparison with other gigantic (Mw ≥ 9.0) subduction earthquakes in the world.
影响因子：
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作者：
Yoko Suwa;S. Miura;A. Hasegawa;Toshiya Sato;K. Tachibana
通讯作者：
Yoko Suwa;S. Miura;A. Hasegawa;Toshiya Sato;K. Tachibana
DOI：
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发表时间：
2004
期刊：
Science 306(5703)
影响因子：
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作者：
Sawai;Y.;K.Satake;T.Kamataki;H.Nasu;M.Shishikura;T.Nagumo et al.Horton;H.M.Kelsey;T.
通讯作者：
T.
最近的深地震剖面揭示了日本本州中北部弧后地区的晚新生代构造发育。
DOI：
--
发表时间：
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期刊：
Jour.Japanese Assoc.Petro.Tech(in Japanese with English abstract) 69
影响因子：
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作者：
Sato;H.;Yoshida;T.;Iwasaki;T.;Sato;T.;Ikeda;Y.;N.Umino
通讯作者：
N.Umino