ANALYSIS OF STRONG GROUND MOTION RECORDS OF WUSHI MS7.1 EARTHQUAKE ON JANUARY 23,2024
A total of 813 instrument intensity information and 496 sets of strong motion records of Wushi 7.1 earthquake were obtained by Xinjiang Seismic Network Center.The peak acceleration of PH002 station was 280.68 cm·s-2,which was the maximum peak acceleration obtained this time.This paper compares the attenuation relationship between the peak accelerations obtained from 219 stations and the fifth generation of China Seismic Ground Motion Parameter Zoning Map,and finds that the two are more consistent within a range of 100 km.This paper calculates and analyzes 5 peak accelerations exceeding 100 cm·s-2.The acceleration response spectrum of these 5 stations was compared and analyzed with the seismic design response spectrum.At the same time,the effective seismic duration of these 5 stations was calculated,and it was found that the seismic energy release was faster within 200 km,indicating a greater seismic destructive force.
Wushi MS7.1 earthquakeStrong motion recordPeak accelerationAcceleration re-sponse spectrumEnergy holding time
NETL
NSTL
万方数据
