大庆遥测地震台网网内微震定位方法研究  

Research on method of microearthquake location within the area covered by Daqing Telemetered Seismic Network

作　　者：吴宣[1] 刘一鸣[1] 齐胜福[1] 李玉萍[1] 

机构地区：[1]国家地震局地球物理研究所

出　　处：《地震地磁观测与研究》1998年第1期46-50,共5页Seismological and Geomagnetic Observation and Research

摘　　要：为了实现对大庆遥测地震台网网内事件的精确定位，分析了台网的实际情况，建立了网内Ｐ波速度模型，并根据该模型编制出相应的初至Ｐ波走时表。采用初至Ｐ波定位方法，取得了很好的结果。３次爆破实验表明，在炮检距均大于１０ｋｍ的情况下，最小定位误差仅５７．７ｍ。In order to exactly locate microseismic events observed in the area Daqing Telemetered Seismic Network,we analysed the real situation of the network,set up a Pwave speedmodel,and calculated the corresponding travel time table by on the basis of the model.Using the locating method of the preliminary Pwave,we have gained good results.Three explosion tests,which the distance between the points of explosion and the points of determinations are over 10 km,indicated that the smallest location error is only 577 meters.

关 键 词：微震事件 定位 速度模型 遥感地震台 网络 

分 类 号：P315.78[天文地球—地震学] P315.9[天文地球—固体地球物理学]