温泉台新30号井数字化水位映震特征分析
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摘要
在通过整理、分析新30号井数字化井水位观测数据,发现该井水位有一定的映震能力,震前异常主要显示为短临异常,而且以高值异常为主;震级和异常持续时间成正比,震级越大异常出现的时间就越早,反之,震级越小异常出现的时间就越晚;震后效应(同震响应)主要以7.7级以上远场巨大地震显示为主,水位通常为先振荡,后下降。
through the collation,analysis of new 30 well digital water level observation data,find that the water level has a certain ability of reflecting earthquake,the anomaly before earthquake mainly appears as the short impending anomaly,and high value anomaly;earthquake magnitude is in proportion to abnormal duration,the greater the magnitude,the sonner the unusual appears,conversely,the smaller the magnitude,the later the abnormal occurs;earthquake effect(co-seismic response) is mainly far-field huge earthquake display with magnitude greater than 7.7,water level is usually fisrt oscillating,then drops.
through the collation,analysis of new 30 well digital water level observation data,find that the water level has a certain ability of reflecting earthquake,the anomaly before earthquake mainly appears as the short impending anomaly,and high value anomaly;earthquake magnitude is in proportion to abnormal duration,the greater the magnitude,the sonner the unusual appears,conversely,the smaller the magnitude,the later the abnormal occurs;earthquake effect(co-seismic response) is mainly far-field huge earthquake display with magnitude greater than 7.7,water level is usually fisrt oscillating,then drops.
引文
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[3]国家地震局预报预防司.地下流体地震预报方法[M].北京:地震出版社,1997.
[4]汪成民,车用太,董守玉,等.地下水微动态研究[M].北京:地震出版社,1988.
[5]高小其,许秋龙,兰陵,等.新O4号井、新1O号井水位和新1O号泉流量地震前兆特征的对比分析[J].内陆地震,2002,16(4):346-354.
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