腾冲站垂直摆倾斜仪观测质量及同震响应分析  

Analysis of Observation Quality and Co-seismic Response of Tengchong Vertical Pendulum Inclinometer

作　　者：番绍辉 张山元 熊家伟 周克鹏 FAN Shaohui;ZHANG ShanYuan;XIONG JiaWei;ZHOU Kepeng(Yunnan Earthquake Agency,Kunming,Yunnan 650051,China)

机构地区：[1]云南省地震局,云南昆明650051

出　　处：《山西地震》2024年第4期16-20,共5页Earthquake Research in Shanxi

摘　　要：基于2021-2022年腾冲老洋河观测站VP垂直摆倾斜仪的观测资料,整理分析观测资料的数据质量及同震响应信息。以20次国内外Ms≥5.0典型地震为例,对VP垂直摆倾斜仪连续率、完整率、相对噪声水平M1进行研究应用VenediKov调和分析方法,计算数据的M2波潮汐因子γ值均方差及同震响应特征、响应时间、最大响应幅度与震中距之间的关系,最大振幅和震级之间的关系。得出腾冲老洋河VP倾斜仪观测数据的准确度较高,可靠性较好;同震响应的延迟时间与震中距相关,最大振幅与震级成正比关系,与震中距成反比关系,表明同震响应持续时间与震级及震中距具有一定相关性。Taking the observation data of VP vertical pendulum tiltmeter at Laoyanghe Observation Station in Tengchong during 2021-2022 as the research object,the data quality and coseismic response information of the observation data were sorted out and analyzed.20 typical earthquakes with M s≥5.0 at home and abroad were taken as examples.The continuous rate,integrity rate,relative noise level M1 of VP vertical pendulum tilter,the mean square error of M2 wave tidal factorγvalue and coseismic response characteristics calculated by VenediKov harmonic analysis method,the relationship between response time and epicenter distance,the relationship between maximum response amplitude and epicenter distance,and the relationship between maximum amplitude and magnitude were studied.The results show that the Tengchong LaoYanghe VP inclinometer has high accuracy and good reliability.The delay time of coseismic response is related to the epicenter distance,the maximum amplitude is proportional to the magnitude and inversely proportional to the epicenter distance,and the duration of coseismic response is related to the magnitude and the epicenter distance.

关 键 词：垂直摆倾斜仪 观测质量 同震响应 

分 类 号：P315.63[天文地球—地震学]