首波震相跟踪测定sPn震相与震源深度

To determine sPn seismic phase and focal depth by head wave phase track

在数字观测的优势条件下,利用sPn震相的动力学特征与运动学特征,sPn震相可以通过跟踪首波震相来快速、可靠地测定进而测出发生在地壳内地震的震源深度。

Under the advanced condition of digital observation, using the dynamic and kinematic characteristics of sPn phase, it could be determined fleetly and reliably by sPn phase track, so as to determine the focal depth of earthquakes in crust.