2010年智利Bio-Bío MW8.8地震前震中附近地区断层面上的摩擦系数变化特征
利用1990年1月1日—2010年2月26日期间发生在2010年智利Bio-Bío MW8.8地震震中附近地区的100次5.0≤MW≤6.9地震震源机制解结果，计算了断层面上的摩擦系数，并得到了摩擦系数随时间的变化。结果表明，震前从2006年初开始直至临近主震发生的约4年零2个月时间内，震中附近地区发震断层面上的摩擦系数随时间呈趋势下降变化；从2006年初的约0.73下降到临震前的约0.4，相对下降幅度达45.2%。这个结果对认识强震孕育过程以及地震预测研究均具有启示意义。...
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| Published in | 地震科学进展 Vol. 52; no. 12; p. 553 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese English |
| Published |
Beijing
Editorial Office of Progress in Earthquake Sciences
01.01.2022
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| Subjects | |
| Online Access | Get full text |
| ISSN | 2096-7780 |
| DOI | 10.19987/j.dzkxjz.2022-027 |
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| Abstract | 利用1990年1月1日—2010年2月26日期间发生在2010年智利Bio-Bío MW8.8地震震中附近地区的100次5.0≤MW≤6.9地震震源机制解结果，计算了断层面上的摩擦系数，并得到了摩擦系数随时间的变化。结果表明，震前从2006年初开始直至临近主震发生的约4年零2个月时间内，震中附近地区发震断层面上的摩擦系数随时间呈趋势下降变化；从2006年初的约0.73下降到临震前的约0.4，相对下降幅度达45.2%。这个结果对认识强震孕育过程以及地震预测研究均具有启示意义。 |
|---|---|
| AbstractList | 利用1990年1月1日—2010年2月26日期间发生在2010年智利Bio-Bío MW8.8地震震中附近地区的100次5.0≤MW≤6.9地震震源机制解结果，计算了断层面上的摩擦系数，并得到了摩擦系数随时间的变化。结果表明，震前从2006年初开始直至临近主震发生的约4年零2个月时间内，震中附近地区发震断层面上的摩擦系数随时间呈趋势下降变化；从2006年初的约0.73下降到临震前的约0.4，相对下降幅度达45.2%。这个结果对认识强震孕育过程以及地震预测研究均具有启示意义。 |
| Author | 陈学忠 郭祥云 李艳娥 |
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| ContentType | Journal Article |
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| SubjectTerms | Earthquake prediction Earthquakes Friction Seismic activity |
| Title | 2010年智利Bio-Bío MW8.8地震前震中附近地区断层面上的摩擦系数变化特征 |
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