摘要
利用中国大陆地区的地震活动和前兆资料,探索区域应力场应力增强标志和动态监视的方法。分析研究了大地震前月相效应的变化;区域地震活动和前兆场时空演变特征;中强以上地震活动群体的空间转移;大区域前兆场短期动态突变;大地震发生后大陆地区中强以上地震活动的追踪等方面的内容。加强区域应力场的动态监视,对开展地震形势预测,提供大地震发生的有利背景乃至地震的中短期预报都有重要意义。
Authors studied the enchanced signs and the dynamic monitoring method of the regional stress field, using the seismic activity and precursory data in China continent. The changes of the effects of lunar phase before strong shocks, spatial evolution features of regional seismicity and precursory field, spatial migration of moderate earthquake swarms, short-term dynamic mutation of large-scale precursory field, and the tracing of moderately strong seismicity in the China continent after occurrence of strong earthquakes are discussed. The enchance of dynamic monitoring for regional stress field will benefit the prediction of seismic trends and short-term and medium-term earthquake prediction and will provide significant background strong earthquakes.
出处
《地震》
CSCD
北大核心
1996年第1期9-16,共8页
Earthquake
基金
地震科学联合基金资助课题(92308)
关键词
区域应力场
地震活动性
动态监视法
地震前兆
Regional stress field, Seismicity, Precursor field, Dynamic moni-toring method
