摘要
对2010年6月22日宁夏永宁M4.9地震震中距1 000 km范围内不同台站记录的sPn、Pn震相进行了初步分析,利用二者的到时差计算该次地震的震源深度,并讨论了用sPn测定震源深度的可能性及其应用。
The sPn and Pn phase of Yongning M4.9 earthquake on June 22 in 2010, recorded by different seismostations which the epicentral distances are no more than 1 000 km in Ningxia region are primary analyzed, and the focal depth is calculated by the travel time difference. Meanwhile, the possibility and application that using sPn phase to determine depth of seismic resource are discussed.
出处
《大地测量与地球动力学》
CSCD
北大核心
2013年第A01期45-48,共4页
Journal of Geodesy and Geodynamics
关键词
SPN震相
壳内地震
近震
震源深度
到时差
sPn phase of seismic wave
within-crust earthquake
local earthquake
focal depth
travel time difference
