Extracting Short-Leveling Anomalies of the Fixed-Point in Fei-Dong Station before Anqing MS4.8 Earthquake
详细信息
- 责任者：Hong Dequan (Earthquake Administration of Anhui Province ; Hefei 230031 ; China) ; Wang Xueying
- 刊名：Journal of Seismological Research
- 出版年：2012
- 卷期：35(1)
- 关键词：地震前兆 ; precursor ; 水准变化 ; geoidal changes ; 安徽 ; Anhui Province
- 页码：p.6-11
- 图表：7 illus., 12 refs.
- 分类号：0500
- issnNo：ISSN1000-0666
- isbnNo：CN53-1062/P
摘要
Using tilt vector method and vertical deformation profile method respectively, the authors analyzed the data of short leveling in Feidong Station. The result showed that the data of short leveling in Feidong Station appear anomaly before Anqing MS4.8 earthquake. Comparing and analyzing the difference of short leveling data anomaly in Feidong between Anqing earthquake and Jiujiang earthquake, the authors inferred that the difference of focal mechanism of the two earthquake and the different stress accumulation process before the two earthquakes was the main reason.