基于地脉动噪声计算方法,以呼伦贝尔市地震台网8个台站连续波形资料为基础,对地震观测台网监测能力进行评估,同时开展台网优化和科学布局研究.通过累计的历史噪声数据,用来评估台站观测环境的变迁,及时掌握地震监测能力的变化.该成果将为地震速报、 重点地震危险区震情跟踪、 强震后现场应急提供科学参考.

The moderate and small earthquakes in Chang Dao area(35.8°～38.7 N°, 119.4°～122.9°E) since 2000 are relocated with double difference method.Through analysis to the results,we find that the relocated earthquakes are relevant much closer with faults.The depth of moderate and small earthquakes have regional difference,which is shallower near Changdao(6km in average),but is deeper near the source region of Ms7 event in 1548(13km in average).Combined with seismicity,the earthquake tendency of Changdao area is analyzed.