福建地震台网接入的台湾台站场地响应研究  

Site Response of Taiwan Seismic Stations Linked up to the Fujian Seismic Network

作　　者：段刚[1] 巫立华[1] 

机构地区：[1]福建省地震局,福建福州350003

出　　处：《地震工程学报》2017年第A01期102-108,共7页China Earthquake Engineering Journal

基　　金：福建省地震局青年基金专项(Y201601)

摘　　要：福建地震台网接入了16个台湾台站,利用这些台站记录的92个地震波形资料,反演台湾地区的非弹性衰减和其中12个台站的场地响应,其非弹性衰减Q(f)=271.6f^(0.381);其场地响应低频部分在1附近波动,高频部分出现衰减;其中一个台在低频部分出现放大效应。经过研究,在计算台湾海峡地震的震源参数时可以提高计算精度,同时为下一步福建台网产出台湾地区地震的震源参数建立数据基础,丰富福建台网的数据服务内容。对震级校正、台站场地选点及评价、地震工程和灾害评估有一定的参考意义。In this study,an inversion of the inelastic attenuation in the Taiwan region and the site response of 12 stations are investigated. We used 92 seismic waveform data recorded at 16 stations in the Taiwan Region,linked up to the Fujian seismic network,The inversion results indicate that the inelastic attenuation is Q（f ） = 271.6f 0.381. The low frequency part of the site response is -1 and the high frequency part decreases quickly. This study can help improve calculation accuracy while deriving source parameters of earthquakes in the Taiwan Strait; this enriches the data serv-ice of the Fujian seismic network. It has some reference significance for correcting earthquake magnitude,selecting and evaluating station sites, and assessing earthquake engineering and disas-ters.

关 键 词：台湾台站 台湾地区 非弹性衰减 场地响应 震源参数 

分 类 号：P315[天文地球—地震学]