节点文献
安庆4.8级地震前形变异常分析
Analysis on the deformation anomaly before Anqing M 4.8 earthquake
【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。
【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 morphology is consistent with previous studies.The results of water tube tiltmeter also indicate significant changes,but the change shape is different from cave strain.
【关键词】 超限率分析;
体应变;
洞体应变;
安庆地震;
【Key words】 over rate analysis(ORA); volume strain; cave strain; Anqing earthquake;
【Key words】 over rate analysis(ORA); volume strain; cave strain; Anqing earthquake;
【基金】 安徽省地震局青年基金课题
- 【文献出处】 地震地磁观测与研究 ,Seismological and Geomagnetic Observation and Research , 编辑部邮箱 ,2012年02期
- 【分类号】P315.7
- 【被引频次】1
- 【下载频次】6