摘要
1991年发生在宁夏北部与内蒙古交界处地震重点监视区内三次中强地震前,宁夏北部前兆台网观测到了倾斜、重力、井水位潮汐响应的异常变化。从扩容模式出发,通过对小震应力降、Q值、波速比以及潮汐响应的综合分析,对多种潮汐响应的时空特征做了初步分析和解释。
During 1991,in the border area of Ningxia and Inner Mongulia, three moderate shocks occurred within this principal monitoring area and the abnormal variations tide tilts and Strains as well as the tide respones of water level were captured by the precursory network in the north of Ningxia. Based on the dilatancy model,the author made a systematic study on the space time characters of several tide response through the comprehensive analysis of minor earthquake stress drop, Q value , Vp/VS ratio and tide response.
出处
《内陆地震》
1993年第1期1-6,共6页
Inland Earthquake
关键词
地震
潮汐
倾斜
重力
井水位
Ningxia Tide response Tilt Gravity Well water level
