摘要
分析了新疆乌鲁木齐 10号泉中强震源兆、场兆及强震 (群 )远场兆的特征 ,认为中强震源兆的表现是震前 1a～ 2 a,绝大多数主测项出现同步高值异常 ,临震前有转折或反向 ,震后异常由强到弱 ,直至消失 ;中强震场兆的表现是仅有少数测项出现场兆异常变化 ,异常以脉冲式短临突跳为主。强震 (群 )场兆的表现是少数映震效能较好的测项出现趋势性前兆异常。
The characteristics of the source precursor and field precursor of the moderately strong earthquake and the far field precursor of the strong earthquake swarm in Number 10 spring of Xinjiang were analyzed,and deemed that the source precursor of the moderately strong earthquake appears as the synchronous anomaly with high value of a majority of the main observation terms during 1 a～2 a before the earthquake,turns or reverses before the impending earthquake,and the anomaly changes from strong to weak until elapse,the field precursor of the moderately strong earthquake appears as the anomaly change of a few observation terms,the burst jump with pulse is dominative in the anomalies,the field precursor of the strong earthquake swarm appears as the trend anomaly of a few observation terms with better reflecting earthquake ability.
出处
《山西地震》
2002年第2期14-19,共6页
Earthquake Research in Shanxi
