| 安庆4.8级地震前形变异常分析 |
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| 引用本文： | 洪德全,王雪莹,李军辉,何康.安庆4.8级地震前形变异常分析[J].地震地磁观测与研究,2012,33(2):46-50. |
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| 作者姓名： | 洪德全 王雪莹 李军辉 何康 |
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| 作者单位： | 1. 中国合肥230031 安徽省地震局;中国安徽230026 蒙城国家野外观测站
2. 中国合肥230031 安徽省地震局 |
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| 基金项目： | 安徽省地震局青年基金课题 |
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| 摘 要： | 采用超限率分析法,处理距离安庆地震较近的合肥、黄山地震台体应变和泾县水管倾斜仪及伸缩仪数据.结果发现：体应变数据均在震前20天左右出现明显异常变化,异常形态与前人研究基本一致;水管仪东西向超限率分析结果具有异常变化,异常形态与体应变不同.
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| 关 键 词： | 超限率分析 体应变 洞体应变 安庆地震 |
Analysis on the deformation anomaly before Anqing M 4.8 earthquake |
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| Hong Dequan
,
Wang Xueying
,
Li Junhui
,
He Kang.Analysis on the deformation anomaly before Anqing M 4.8 earthquake[J].Seismological and Geomagnetic Observation and Research,2012,33(2):46-50. |
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| Authors: | Hong Dequan Wang Xueying Li Junhui He Kang |
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| Institution: | 1) Earthquake Administration of Anhui Province, Hefei 230031, China2) Mengcheng National Geophysical Research Station Field of Scientific Observation, Anhui Province 230026, China |
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| Abstract: | In this article, the volume strain in Hefei and Huangshan Seismic Stations, and cave strain of Jingxian Seismic Station are analyzed with over rate analysis （ORA）. The results indicate significant abnormal changes about 2 months before Anqing earthquake, abnormal morpholo- gy is consistent with previous studies. The results of water tube tiltmeter also indicate sig- nificant changes, but the change shape is different from cave strain. |
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| Keywords: | over rate analysis（ORA） volume strain cave strain Anqing earthquake |
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