乌苏5．8级地震前单台地震波参数异常及跟踪预报

SEISMIC WAVE ANOMALY OF SINGLE-STATION AND TRACE PREDICTION BEFORE THE WUSU EARTHQUAKE WITH Ms 5.8

通过分析１９９５年５月２日新疆乌苏５．８级地震前北天山部分跟踪台站地震波参数异常特征，特别是石场台视孕震区内地震直达波振幅比的空间分布和时序变化规律，及时发现了异常并大致判断出潜在孕震区的范围，为预报决策和动态跟踪提供了依据。文中总结了跟踪预报的过程及经验教训。

According to analyzing the characteristics of seismic wave parameter anomaly of some tracing seismostations in north Tianshan before the Wusu earthquake with Ms5. 8 on any 2, 1995, especially the spatial distribution and time sequence variation of amplitude ratio of seismic direct wave in apparent seismogenic region, the anomalies were found in time and the range of potential seismogenic regions determined roughly. The process of tracing prediction and its experiences and lessons are summarized, furnishing the criteria to the decision and dynamic tracing of earthquake prediction.