乳山地区流动地震台场地响应  

Estimation of site response for temporary station in Rushan region

作　　者：苗庆杰[1] 殷海涛[1] 刘方斌[1] 曲均浩[1] 

机构地区：[1]山东省地震局,中国济南250102

出　　处：《地震地磁观测与研究》2017年第4期110-114,共5页Seismological and Geomagnetic Observation and Research

基　　金：山东省自然科学基金(项目编号:ZR2014DQ019);中国地震局星火计划(项目编号:XH16025Y)

摘　　要：利用乳山流动地震台网记录的2013年10月1日乳山M_L 3.8震群资料,基于Atkinson方法,计算得到该区Q值与频率f的关系:Q(f)=57.8 f ^(0.8562)。Moya方法仅依赖震源模型,计算绝对场地响应值,较能反映实际放大效应。采用该方法,计算14个流动地震台站场地响应,结果显示,场地响应在低频(1—2 Hz)放大作用不明显,而高频部分平均放大2—10倍,卓越频率3—10 Hz,且高频处场地响应衰减不明显。Using the data of Rushan M_L 3.8 earthquake swarms recorded in 14 stations of Rushan mobile seismic network on October 1, 2013, the authors calculated inelastic attenuation in Rushan area using Atkinson method. And an obtained relation of Q value and frequency is Q（？） = 57.8？^（0.8562）. Moya method that depend only source model can calculate the absolute site response that can reflect the actual amplifications. With the method, the site response of 14 mobile stations gotten show inconspicuous amplifications at low frequencies（1-2 Hz） and 2-10 times amplifications at high frequencies, the predominant frequency is 3-10 Hz, and the attenuation at high frequencies is inconspicuous.

关 键 词：流动地震台站 场地响应 Q值 乳山地区 

分 类 号：P315.78[天文地球—地震学]