| 沈阳台利用sPn震相确定近震深度的对比分析 |
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| 引用本文： | 荆涛.沈阳台利用sPn震相确定近震深度的对比分析[J].防灾减灾学报,2015(4):49-55. |
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| 作者姓名： | 荆涛 |
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| 作者单位： | 沈阳地震台,辽宁 沈阳,110161 |
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| 基金项目： | 中国地震局监测、预测、科研三结合课题 |
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| 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。
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| 关 键 词： | sPn震相 壳内地震 到时差 震源深度 震相识别 |
CONTRAST ANALYSIS OF THE NEAR EARTHQUAKES' DETERMINATION BY USING SPN SEISMIC PHASE IN SHENYANG SEISMIC STATION |
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| Abstract: | 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. |
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| Keywords: | sPn seismic phase intracrust seismic arrival time difference seismic phase identification |
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