东乌珠穆沁旗5.9级地震前地震活动异常分析  

ANALYSIS ON THE SEISMICITY ANOMALIES BEFORE DONGWUZHUMUQINQI EARTHQUAKE WITH Ms5.9

作　　者：李芳[1] 李宇彤[1] 马莉[2] 

机构地区：[1]辽宁省地震局,辽宁沈阳110031 [2]沈阳地震台,辽宁沈阳110161

出　　处：《东北地震研究》2005年第2期24-30,共7页Seismological Research of Northeast China

摘　　要：分析了2004年3月24日内蒙古东乌珠穆沁旗5 9级地震前东北地区地震活动背景、震中周围中小地震活动图像和地震学参数异常过程。在地震发生前,震中及邻区地震活动明显增强,地震活动从无序到有序,出现了孕震空区、地震条带。一些地震活动性参数出现了中、短期异常。The anomaly procedure of the seismicity background of the Northeast China,the medium and small seismicity image in the area around the epicenter and seismological parameter are analyzed before the Dongwuzhumuqinqi earthquake with Ms5.9.Before this earthquake,the regional seismic intensity around the earthquake epicenter increases.The Seismicity is showing from disordere to order,occurring a seismogenic zone and earthquake belt.Some medium-term and short-term anomalies have appeared such as some earthquake activity parameters.For instance:Lack shock,Mf value,Rm value.

关 键 词：东乌珠穆沁旗 地震前 异常分析 2004年3月 地震活动性参数 地震活动背景 地震活动图像 东北地区 参数异常 地震发生 孕震空区 地震条带 短期异常 内蒙古 地震学 邻区 震中 

分 类 号：P315.7[天文地球—地震学] P315.5[天文地球—固体地球物理学]