摘要
通过沈阳台记录到20个壳内近震和26个营海岫地区近震,利用s Pn与Pn震相的到时差重新计算这46个近震的震源深度,并和国家台网中心结果及辽宁台网中心结果进行比对,表明沈阳台记录到的s Pn震相可用于计算震源深度,计算得出的深度与国家台网中心及辽宁台网中心所测定深度基本相近,误差较小。
Based on the 20 intracrust earthquakes and 26 near earthquakes in Yinghaixiu region recorded by Shenyang Seismic Station, the 46 near earthquakes＇ focal depths are recalculated by sPn and Pn seismic phase arrival time difference. Contrasted with the results calculated by China Earthquake Networks Center and Liaoning Earthquake Networks Center, it is showed that clear sPn seismic phases can be recorded in Shenyang Seismic Station. And the depths calculated by Shenyang Seismic Station are similar with the results in China Earthquake Networks Center and Liaoning Earthquake Networks Center.
出处
《防灾减灾学报》
2015年第4期49-55,共7页
Journal of Disaster Prevention And Reduction
基金
中国地震局监测
预测
科研三结合课题(近震地震波形资料分析及震源深度确定项目资助)
关键词
SPN震相
壳内地震
到时差
震源深度
震相识别
SPN seismic phase
intracrust seismic
arrival time difference
seismic phase identification
