周至等地震台站地下流体水位观测同震效应分析  

COSEISMIC EFFECT ANALYSIS ON GROUNDWATER LEVEL OBSERVATION IN ZHOUZHI, MAOXI AND LUONAN SEISMIC STATIONS

作　　者：王卫平 古云鹤[1] 王秋宁[1] 张建 白若冰 常城 WANG Weiping;GU Yunhe;WANG Qiuning;ZHANG Jian;BAI Ruobing;CHANG Cheng(Shaanxi Earthquake Agency, Xi’an 710068,China)

机构地区：[1]陕西省地震局

出　　处：《高原地震》2019年第3期13-18,共6页Plateau Earthquake Research

基　　金：陕西省地震局启航与创新课题(课题编号:QC201720)资助

摘　　要：从不同的方位对陕西周至、毛西、洛南等流体台站水位观测记录到的典型地震进行分析,由于这3个流体台站所处的地理位置、井深不同,对同一地震的表现形式也不尽相同,通过对比分析井水位对地震的响应特点,得出以下认识:陕西部分观测井孔一般对远场大震记录比较灵敏,而对近震及地方震反映不灵敏;井孔水位仪记录的水位波幅与震级、震中距、震中位置等有关;单井的同震水震波记录通常具有方向性等。Typical earthquakes recorded by water level observation at Zhouzhi,Maoxi and Luonan fluid stations in Shaanxi province are analyzed from different directions.Different geographic locations and well depths can lead to different manifestations of the same earthquake.By comparing and analyzing the response characteristics of well water level to earthquakes,the conclusions are as following:some observation wells in Shaanxi province are generally sensitive to far-field large earthquakes,but not sensitive to near-field large earthquakes and local earthquakes, the water level amplitude recorded by borehole water level gauge is related to magnitude, epicenter distance,epicenter location,etc.The single well co-seismic water-seismic wave record usually has directionality, etc.

关 键 词：水位 井孔 水震波 同震效应 

分 类 号：P315.723[天文地球—地震学]