Scaled Energy Estimation for Shallow Slow Earthquakes
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- Suguru Yabe
- Department of Solid Earth Geochemistry Japan Agency for Marine‐Earth Science and Technology Yokosuka Japan
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- Takashi Tonegawa
- Research and Development Center for Earthquake and Tsunami Japan Agency for Marine‐Earth Science and Technology Yokohama Japan
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- Masaru Nakano
- Research and Development Center for Earthquake and Tsunami Japan Agency for Marine‐Earth Science and Technology Yokohama Japan
書誌事項
- 公開日
- 2019-02
- 資源種別
- journal article
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1029/2018jb016815
- 公開者
- American Geophysical Union (AGU)
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説明
<jats:title>Abstract</jats:title><jats:p>Deep and shallow slow earthquakes occur at the edge of the seismogenic zone in the Nankai subduction zone. Deep slow earthquakes occur under high‐temperature and high‐pressure conditions, whereas shallow slow earthquakes occur at lower temperatures and pressures. Although these two types of slow earthquake show qualitatively similar behaviors, such as slow deformation and depleted high‐frequency seismic signals, their similarities have not yet been evaluated in quantitative ways. In this work, we analyze shallow tectonic tremors accompanied by very low frequency earthquakes off Kii Peninsula, Japan. We estimate the seismic energy of the shallow tectonic tremors by correcting for the site amplifications of ocean bottom seismic stations and seismic attenuation in the shallow accretionary prism. The estimated seismic energy rates of these tectonic tremors are compared with seismic moment rates of accompanying very low frequency earthquakes, revealing that the scaled energy of shallow slow earthquakes is roughly constant, ~10<jats:sup>−9</jats:sup> to 10<jats:sup>−8</jats:sup>, which is 0 to 1 order of magnitude larger than the typical scaled energy of deep slow earthquakes.</jats:p>
収録刊行物
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- Journal of Geophysical Research: Solid Earth
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Journal of Geophysical Research: Solid Earth 124 (2), 1507-1519, 2019-02
American Geophysical Union (AGU)
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詳細情報 詳細情報について
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- CRID
- 1360285708269022720
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- ISSN
- 21699356
- 21699313
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- Web Site
- https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2018JB016815
- https://onlinelibrary.wiley.com/doi/pdf/10.1029/2018JB016815
- https://onlinelibrary.wiley.com/doi/full-xml/10.1029/2018JB016815
- https://onlinelibrary.wiley.com/doi/am-pdf/10.1029%2F2018JB016815
- https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2018JB016815
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
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