【摘要】 利用2008年10月至2009年9月山东及邻近地区发生的215次ML≥1.0级地震的数字化地震资料,计算其波速比值,并根据波速比的变化特征,对2010年度山东及邻省地区的地震趋势进行分析,认为山东及邻近地区的地震活动及地震波速比变化没有明显的异常显示特征。更多还原

【Abstract】 According to the digital seismic data of 217 ML≥1.0 earthquakes from Oct.2008 to Sep.2009 in Shandong and its adjacent areas recorded by Shandong seismic network,the VP/VS ratio is calculated,and the earthquake tendency in the region is analyzed by the variations of VP/VS.The result shows that the seismicity and the variations of VP/VS did not present obviously anomalous characteristics in the region.更多还原