【摘要】 对2005年11月26日瑞昌Ms5.7级地震前地震活动进行了分析,指出了5.7级地震前大区域内出现中等地震异常条带,区域地震活动出现空区等异常图像。文中还给出了5.7级地震前中等地震活动在时间上的分布具有丛集性、低b值、应变释放加速等异常。更多还原

【Abstract】 Through analysis on the seismicity before Reichang Ms5.7earthquake occurred on Nov.26,2005 we found,some medium earthquake belts appeared in the region before the event,and some abnormal images,such as earthquake gap,were also showed.Some precursory anomalies are identified,such as medium earthquakes crowding,low b value and strain release accelerating.更多还原