【摘要】 2010年玉树7.1级地震前发生了一次MS4.7前震,通过研究其地震活动、数字地震观测资料等,发现MS4.7前震具备显著的特征,主要有打破M≥4地震空区以及高波速比、高应力降等,对一些特殊地区的大震跟踪具有积极意义。更多还原

【Abstract】 An MS4.7 foreshock occurred before the Yushu MS7.1 earthquake in 2010.Using earthquake activities and digital seismic observation data of the MS4.7 foreshock etc.,we found some remarkable characteristics,such as breaking the seismic gaps of M ≥4 earthquakes,high wave velocity ratio and high stress drop etc..The result may have positive significance to the tracing of strong earthquake in some special areas.更多还原