摘要
分析了赤峰地区地质构造特征、地球动力学环境、历史中强地震活动,表明该区域具备发生中强地震的构造条件;2008年以来的地震活动表明,辽蒙交界地区存在发生5级以上中强震的危险性,该地区的波速比震前异常能够为该地区的地震中期预测提供一定的判定依据。
The characteristics of geological structure, geodynamical condition and historical moderately strong earthquake activity in Chifeng area are analyzed, the resuhs indicate that this region has the condition to occur moderately strong earthquakes, and since 2008, the seismic activity also indicate that the common Liaoning province and Inner Mongolia has the risk of occurring earthquakes with Ms ≥ 5.0, and ratio（Vp/Vs） anomalies before earthquake can be as medium term forecast index in this area.
出处
《高原地震》
2009年第3期11-16,共6页
Plateau Earthquake Research
关键词
赤峰地区
辽蒙交界
地震活动性
波速比
Chifeng and its adjacent regions
Seismic activity
Velocity ratio（ Vp/Vs ） boundary of velocity
