摘要
通过对近30余年来世界上一些Ms≥6级水库地震的发震特点分析和涝旱剧变与中国Ms≥7级大震的相关研究,以及1992年美国洛杉矶7.5级地震的水—震过程介绍,充分证实了在地壳岩石长期缓慢运动的基础上,地表水和地下水短期内的大面积大幅度涨落,很可能是孕震区应变非线性增长并驱使孕震体进入不稳定状态乃至失稳的重要原因。同时表明,水致地震关系可能普遍存在于全球各地。
In this paper,the characteristcs of reservoir induced earthquakes with M≥6 in the world and tile relationship between the drought-flood drastic change and strong earthquakes with M≥7 in China in recent thirty-odd years were analyzed, and the hydroseismic process of the Los Angeles earthquake with M=7.5 on 28 June 1992 in USA was also introduced.It was indicated that tile Large-scale drastic fluctuation of the ground surface water and subterranean water is possibly a important cause to produce the stress nonlinear increase in the earthquake development area and then to lead the source into unsteady state.The Phenomenon of that water causes earthquake exists widely in all parts of the world.
出处
《华南地震》
1994年第4期73-77,共5页
South China Journal of Seismology
关键词
水库
地震
涝旱
地震
诱发地震
Reservoir induced earthquake, Drastic change of drought and flood,The Los Angeles earthquake