乌鲁木齐10号泉流量的映震分析

Reflecting Earthquake Analysis of Discharge Rate for the No 10 Spring Spot in Urumqi

从监测泉点的水文地质概况入手 ,结合近 16年来的震例 ,分析并总结了 10号泉流量的映震特征 :流量的地震前兆异常基本上都是正异常 ,且具有较好的重复性 ,即流量测值遵循背景值—趋势性上升 (或突升 )—最高值—趋势性下降 (或突降 )—恢复到背景值。而地震常常发生在流量测值由高变低的过程中。最后 。

Starting with hydrogeological survey of the monitoring spring spot and combining with the earthquake examples in recent 16 years,the characteristics of reflecting earthquake for the No10 spring spot are analyzed and summarized as follows:seismic precursor anomalies of the discharge rate are normal anomalies on the whole,having relatively good repeat feature,namely the discharge rate values follow the course of background values to tendency rise(or abrupt rise)to maximum value and to tendency drop(or abrupt drop)then returning to the background value.Earthquakes occurred often in the variation course from high to low of discharge rate values.Lastly,it is preliminarily thought that seismotectonic environment of the spring spot is the cause of reflecting earthquake sensitivity of discharge rate in the spring spot.