| 大桥水库诱发4.4级水库地震前的地震学异常 |
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| 引用本文： | 胡先明.大桥水库诱发4.4级水库地震前的地震学异常[J].地震地磁观测与研究,2003,24(3):14-19. |
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| 作者姓名： | 胡先明 |
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| 作者单位： | 中国成都,610041,四川省地震局水库地震研究所 |
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| 摘 要： | 2002年3月3日大桥水库诱发了ML4．4水库地震，根据大桥台网7年多库区地震观测事件记录，用基于GIS的地震分析预报系统进行分析，在4．4级水库诱发地震前，库区内有分布密集、频次超高、震级偏低的近地表地震活动，以致库区内地震存在b值与η值等地震学异常。
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| 关 键 词： | 水库诱发地震 2002年3月 地震观测 GIS 地震分析预报系统 震级 地震活动 |
| 文章编号： | 1003-3246(2003)03-0014-06 |
| 修稿时间： | 2003年10月9日 |
Seismic anomalies before reservoir-induced ML 4.4 earthquake in Daqiao, Sichuan |
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| Hu Xianming.Seismic anomalies before reservoir-induced ML 4.4 earthquake in Daqiao, Sichuan[J].Seismological and Geomagnetic Observation and Research,2003,24(3):14-19. |
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| Authors: | Hu Xianming |
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| Abstract: | A ML 4.4 induced reservoir earthquake occurred on March 3, 2002 in the Daqiao reservoir. With the synthetic seismic analysis prediction system based on GIS, records over seven years from Daqiao reservoir seismic telemetry network were analyzed. Before the ML 4.4 earthquake, there was earthquake activity with high frequency, depths near the free surface and lower magnitude. There were the seismic anomalies is higher b and h value for the earthquakes in and near the Daqiao reservoir area. |
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| Keywords: | induced reservoir induced earthquake earthquake anomaly |
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