河北易县地震台水管倾斜仪与垂直摆倾斜仪同震响应分析  

Comparative Analysis of the Co-seismic Response between Water-tube and Vertical Pendulum Tiltmeters in Yixian Seismic Station

作　　者：张肖[1] 崔泽岩[2] 赵慧琴[2] 佘雅文[1] 李慧[2] 马武刚[3] 马栋[4] 

机构地区：[1]河北省地震局易县地震台,河北易县074211 [2]河北省地震局保定中心台,河北保定071000 [3]中国地震局地震研究所,湖北武汉430071 [4]河北省地震局,河北石家庄050021

出　　处：《地震工程学报》2016年第A01期96-100,共5页China Earthquake Engineering Journal

摘　　要：利用河北易县地震台DSQ型水管倾斜仪与VS型垂直摆倾斜仪记录的2005—2015年数据资料,分析两种地倾斜观测仪器同震响应的特征及响应幅度与震中距、震级的关系。结果表明:(1)DSQ型水管倾斜仪对远震响应幅度大,同震响应幅度与震级呈正比,与震中距呈反比;VS型垂直摆倾斜仪对近震响应幅度大,与震级、震中距无明显的线性关系。DSQ型水管倾斜仪的同震响应延迟时间比VS型垂直摆倾斜仪短,且与震中距呈正比;(2)两种地倾斜观测仪的地震响应持续时间与震级呈正比,VS型垂直摆倾斜仪对中小地震的响应持续时间比DSQ型水管倾斜仪长。m In this study, using the 2005 - 201 5 response data from the DSQ water tube tiltmeter and the VS vertical pendulum tiltmeter in the Yixian seismic station, we analyze the characteristics of the coseismic response of the two instruments and the correlation between the epicentral distance, the earthquake magnitude, and the response amplitude. The results are the following：（1）Different tiltmeters show different responses to the magnitude and the epicenter distance. The DSQ water-tube tiltmeter has a stronger response to distant earthquakes, and its coseismic response amplitude is proportional to the magnitude, but inversely proportional to the epicentral distance. Conversely, the VS vertical pendulum tiltmeter exhibits high response to near earthquakes. （2） The coseismic response duration of the two kinds of tiltmeters is proportional to the magnitude; the response duration of VS tiltmeter for medium-small earthquakes is longer thanthat of the DSQ tiltmeter.

关 键 词：地倾斜观测仪器 同震响应特征 同震响应幅度 震中距 震级 

分 类 号：P315.62[天文地球—地震学]