摘要
全面分析了山东省地下流体井网对2008年5月12日汶川8.0级、2011年3月11日日本9.0级和2015年4月25日尼泊尔8.1级3次特大地震出现的前兆异常、同震响应及震后效应,得出对特大地震有反应的井,基本都处在区域构造格架的地震活动带上,且井深大都在1000 m以上,井孔水位及水温对地震的反应或响应程度与地震震级成正比,与井震距成反比。
This paper analyzes the precursory anomaly, coseismic and postseismic earth-quake response of the Shandong underground fluid digitalized well network to several great earthquake： M8.0 Wenchuan earthquake in 2008, M9.0 Tohoku earthquake in 2011 and M8. 1 Nepal earthquake in 2015. Based on the results, we concluded that the wells with re-sponse to great earthquake are almost all located in active tectonic zone with depth more than 1 000 meters. The coseismic responses of water level and water temperature are proportional to earthquake magnitude and in inverse proportional to epicentral distances.
出处
《国际地震动态》
2017年第10期32-39,共8页
Recent Developments in World Seismology
基金
2017年中国地震局监测系统运维项目资助
关键词
地下流体
特大地震
前兆异常
同震响应
震后效应
underground fluid
great earthquake
precursory anomaly
coseismic response
postseismic effect
