节点文献
甘肃玉门5.9级地震前周至数字化综合观测井的异常特征
Characteristics of groundwater anomalies observed in Zhouzhi digital Observation Well before Yumen M5.9 earthquake in Gansu
【摘要】 2002年12月14日,甘肃玉门发生5.9级地震,震前,距离震中1000km的周至地震台地下水数字化综合观测井的地热、水位、流量三个测项都出现了明显的短临异常显示。本文介绍了震前周至井出现的短临异常变化。与该台历史手工观测结果对比,数字化观测更有利于捕捉短临前兆信息及其变化的完整过程。
【Abstract】 Yumen M5.9 earthquake occurred in Dec.14, 2002. Before the event, the water temperature, water level and outflow of Zhouzhi well, which is 1000km away from the epicenter, all showed clear shortterm and imminent anomalies. The variation of these anomalies is introduced here. Compared with the historical analogue data of the station, the digital observation is more propitious to detecting shortterm and imminent precursors as well as its whole variation.
【关键词】 短临异常;
动水位;
地热;
流量;
玉门地震;
【Key words】 imminent anomaly; dynamic water level; geotherm, outflow; Yumen earthquake;
【Key words】 imminent anomaly; dynamic water level; geotherm, outflow; Yumen earthquake;
【基金】 国家科技攻关计划;中国地震局"十五"(01 03 05)的一部分.
- 【文献出处】 华北地震科学 ,North China Earthquake Sciences , 编辑部邮箱 ,2003年03期
- 【分类号】P315.72
- 【被引频次】14
- 【下载频次】37