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Spatial distribution of atypical aftershocks of the 1995 Hyogo-ken Nanbu earthquake
https://doi.org/10.24517/00010785
https://doi.org/10.24517/00010785893238a4-27bd-4dfc-b0b1-e4a6b5df5378
| 名前 / ファイル | ライセンス | アクション |
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SC-PR-HIRAMATSU-Y-933.pdf (4.1 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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| 公開日 | 2017-10-03 | |||||||||
| タイトル | ||||||||||
| タイトル | Spatial distribution of atypical aftershocks of the 1995 Hyogo-ken Nanbu earthquake | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | journal article | |||||||||
| ID登録 | ||||||||||
| ID登録 | 10.24517/00010785 | |||||||||
| ID登録タイプ | JaLC | |||||||||
| 著者 |
Yamanaka, Hiroshi
× Yamanaka, Hiroshi× Hiramatsu, Yoshihiro× Katao, Hiroshi |
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| 著者別表示 |
平松, 良浩
× 平松, 良浩
× 片尾, 浩
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| 書誌情報 |
Earth, Planets and Space 巻 54, 号 10, p. 933-954, 発行日 2002-01-01 |
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| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 1343-8832 | |||||||||
| NCID | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AA11211921 | |||||||||
| 出版者 | ||||||||||
| 出版者 | the Society of Geomagnetism and Earth, Planetary, and Space Sciences (SGEPSS), the Seismological Society of Japan, the Volcanological Society of Japan, the Geodetic Society of Japan, the Japanese Society for Planetary Sciences | |||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | The 1995 Hyogo-ken Nanbu earthquake (MJMA7.3) occurred on January 17, 1995. To reveal the detailed stress field after the mainshock, we relocate hypocenters of aftershocks (M ≥ 2.3) and determine their focal mechanisms using seismic records obtained by GROUPS-95, a temporary dense seismic network in and around the aftershock region. Along the mainshock rupture zone, some aftershocks are nearly N-S compression or normal fault type events, which is inconsistent with the regional stress field of approximately horizontal E-W compression. We call these aftershocks atypical, defined as events which have focal mechanisms with P-axis directions more than 45°from the regional stress field. The atypical aftershocks amount to about 17% of the total. No temporal variations in aftershock mechanism are found in the analysis period. Their spatial distribution is compared with the slip and stress distribution of the mainshock, as well as the P- and S-wave velocity structure. Most of them are located at the upper boundary between the slipped and unslipped zones of the mainshock. We suggest that the atypical aftershocks are caused by the disturbance of the local tectonic stress field due to the heterogeneous coseismic slip. | |||||||||
| 権利 | ||||||||||
| 権利情報 | Copyright © the Society of Geomagnetism and Earth, Planetary, and Space Sciences (SGEPSS), the Seismological Society of Japan, the Volcanological Society of Japan, the Geodetic Society of Japan, the Japanese Society for Planetary Sciences | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 関連URI | ||||||||||
| 関連タイプ | isVersionOf | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | https://doi.org/10.1186/BF03352441 | |||||||||
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| 関連タイプ | isIdenticalTo | |||||||||
| 識別子タイプ | URI | |||||||||
| 関連識別子 | http://www.earth-planets-space.com/ | |||||||||
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| 関連タイプ | isIdenticalTo | |||||||||
| 識別子タイプ | URI | |||||||||
| 関連識別子 | https://www.jstage.jst.go.jp/browse/eps1998 | |||||||||
