Study on Lg Wave Attenuation and Site Response Characteristics in Central and Western of Inner Mongolia,China
Based on the joint inversion method of Lg spectral ratio and station site re-sponse,78 ML≥2.8 seismic events recorded by seismic network in Inner Mongolia and neighboring areas during 2016-2020 were selected to carry out seismic wave attenuation and site response analysis in central and western of Inner Mongolia.The results showed that the three-component decay parameters were respectively:QUD(f)=372·f0.54,QEW(f)=287·f0.59,QNS(f)=382·f0.43.By analyzing the response of 34 stations,we found that EKH,BYT and HYS stations had obvious amplification in 1～7 Hz research frequency band,while BHS,XLT and RLT stations had obvious amplification in 1～3 Hz low frequency band,which might be related to the complex geological structure where the stations were located.
Central and western region of Inner MongoliaLg waveAttenuation param-eterSite response
NETL
NSTL
万方数据
