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Long-term changes in the Coulomb failure function on inland active faults in southwest Japan due to east-west compression and interplate earthquakes
http://hdl.handle.net/2237/20457
http://hdl.handle.net/2237/204578a9f3da7-b39a-4fbb-9824-b72a925b51ff
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Shikakura_Fukahata_Hirahara_JGR2014org.pdf (1.4 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-07-14 | |||||
| タイトル | ||||||
| タイトル | Long-term changes in the Coulomb failure function on inland active faults in southwest Japan due to east-west compression and interplate earthquakes | |||||
| 言語 | en | |||||
| 著者 |
Shikakura, Yosuke
× Shikakura, Yosuke× Fukahata, Yukitoshi× Hirahara, Kazuro |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 権利情報 | ©2013. American Geophysical Union. | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | inland active fault | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Coulomb failure function | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | viscoelasticity | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | historical earthquake | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | interplate earthquake along the Nankai Trough | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | southwest Japan | |||||
| 抄録 | ||||||
| 内容記述 | Inland earthquake activity in and around the Kinki region, southwest Japan, increases in the period from several decades before to about a decade after the occurrence of great interplate earthquakes along the Nankai Trough. To quantitatively investigate this relationship, we calculated long-term changes in the Coulomb failure function (ΔCFF) on inland active faults in this region with viscoelastic slip response functions. As sources for the change in CFF, we investigated east-west compression within the Niigata-Kobe Tectonic Zone (NKTZ), historical interplate earthquakes and interseismic locking along the Nankai Trough subduction zone, and historical inland earthquakes in this region. Among these sources, the NKTZ east-west compression is the primary cause of the long-term changes in CFF. The changes in CFF due to interplate earthquakes are mostly negative on reverse faults and positive on strike-slip faults. This result suggests that the inland reverse faulting activity mostly increases before interplate earthquakes and decreases after the earthquakes, whereas strike-slip activity is mostly suppressed before interplate earthquakes and increases thereafter. This suggestion is supported by spatiotemporal pattern of historical inland earthquakes if focal mechanisms of historical earthquakes correspond to fault geometries in the region. The calculated changes in CFF are usually consistent with the occurrence of historical inland earthquakes. If we use the change in shear stress instead of the change in CFF, this consistency is enhanced, which suggests low apparent coefficients of friction in this region. | |||||
| 言語 | en | |||||
| 内容記述タイプ | Abstract | |||||
| 出版者 | ||||||
| 言語 | en | |||||
| 出版者 | Wiley | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1002/2013JB010156 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 2169-9356 | |||||
| 書誌情報 |
en : Journal of Geophysical Research: Solid Earth 巻 119, 号 1, p. 502-518, 発行日 2014-01 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
| URI | ||||||
| 識別子 | http://dx.doi.org/10.1002/2013JB010156 | |||||
| 識別子タイプ | DOI | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/20457 | |||||
| 識別子タイプ | HDL | |||||
