摘要
以1991年柯坪6.5级地震为例,对利用卫星热红外遥感资料监测临震地表热红外异常进行了探.索研究。在柯坪地震前,震中地区出现热红外异常,震前2天异常最显著,震后3天异常恢复。异常形态呈条带状,分布范围与柯坪断裂基本一致,6.5级地震就发生在增温异常的中心地区附近。这说明卫星热红外异常是很好的地震短临信息,对发展地点有很好的指示作用,在地震监测预报中将展现出良好的应用前景。
The Keping Ms 6. 5 earthquake in 1991 is taken as an example in this paper. It is proached and studied to use thermal infrared data of satellite remote sensing to monitor im pending infrared anomalies of ground. Before the Keping earthquake, the thermal infrared anomalies appeared in the epicentral region, and were most obvious two days previous to the shock. They ended at the third day after shocking. The anomalies were banded, and its dis tribution was uniform with the Keping fault. The magnitude 6. 5 earthquake just occurred nearby the center of the anomalous region. All these show that thermal infrared anomaly is very fine impending earthquake information, indicating seismic locations very well, and pre sents bright prospects in monitoring and predicting earthquakes.