Preliminary Study on the Relationship between the Ms8.0 Wenchuan Earthquake of 2008 and the Anomalies of Earth Resistivity Observed at oft-com:office:smarttags" />
详细信息
- 责任者：Zhang Jihong (Earthquake Administration of Shangdong Province ; Jinan 250014 ; China) ; Zhao Guoze
- 刊名：Seismology and Geology
- 出版年：2010
- 卷期：32(3)
- 关键词：地下水动态 ; groundwater regime ; 汶川地震2008 ; Wenchuan earthquake 2008 ; 地震前兆 ; precursor ; 地电阻率 ; earth resistivity ; 山东 ; Shandong Province
- 页码：p.409-416
- 图表：3 illus., 24 refs.
- 分类号：0500
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
摘要
Near-surface earth resistivity and underground water level anomalies were recorded at Qingdao seismic observatory of Shandon Province before and after the MS 8.0 Wenchuan Earthquake of May 12, 2008. The observation data revealed that the underground water level dropped and the resistivity increased. It is postulated that in the special tectonic setting as Qingdao observatory, the variation of stress and strain resulted in the change of water level beneath the station,leading to the variation of resistivity. The relationship between the variation of stress field and the change of earth resistivity before earthquake is analysed.