地震学报2011,Vol.33Issue(6):800-808,9.DOI:10.3969/j.issn.0253-3782.2011.06.010
判别地下水异常的干扰性与前兆性的原则及其应用实例
Principles on distinguishing interference from seismic precursor of underground water variation and its application
摘要
Abstract
In this paper four principles to follow in distinguishing interference from observations of underground water variation are presented. The principles are the correlation of contributing factors, the correlation of spatial variations, the correlation of temporal variations and the correlation of signal intensities. Besides, three criteria for identifying precursory anomalies of underground water variation are also proposed. Firstly the anomalies must have been distinguished from interferences; then there must be observations and theoretical model supporting the correlation between observed anomalies and earthquakes;finally there must be corresponding observed anomalies from other scientific observations. Two inspection cases in using above-mentioned principles and criteria are presented. The first case is the distinguishing and removing of the interference anomalies of underground water appeared in Suqian city, Jiangsu province. The second is the conformation of a precursory anomaly that the underground water flow in the Chuan 22 well, in Qionglai city of Sichuan, had shut down during December 2007 to April 2008 before the Wenchuan earthquake.关键词
地下水/干扰异常/地震前兆异常Key words
underground water/ interference anomaly/ earthquake precursory a-nomaly分类
天文与地球科学引用本文复制引用
车用太,鱼金子,刘成龙,徐桂明,郑益铭..判别地下水异常的干扰性与前兆性的原则及其应用实例[J].地震学报,2011,33(6):800-808,9.基金项目
中国地震局老专家科研基金(201148)和国家自然科学基金(40930637)项目资助. (201148)