温泉台新30号井数字化水位映震特征分析

Analysis of Wenquan Station New 30 Well Digital Water Level Reflecting Earthquake Character

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.