[1]XU Qin,CHEN Linrong,ZHANG Yu,et al.The Characteristics of Strong Motion Records of the Songyuan MS5.7 and MS5.1 Earthquakes,Jilin Province[J].Journal of Seismological Research,2019,42(04):627-634.
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The Characteristics of Strong Motion Records of the Songyuan MS5.7 and MS5.1 Earthquakes,Jilin Province
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
42
Number of periods:
2019 04
Page number:
627-634
Column:
Public date:
2019-12-15
- Title:
- The Characteristics of Strong Motion Records of the Songyuan MS5.7 and MS5.1 Earthquakes,Jilin Province
- Keywords:
- Songyuan earthquake; strong motion records; acceleration response spectrum; attenuation relationships; strong motion observation
- CLC:
- P315.914
- DOI:
- -
- Abstract:
- On May 28,2018 and May 18,2019,two MS5.7 and MS5.1 earthquakes occurred successively in Ningjiang district,Songyuan city,Jilin province.The 24 groups of strong ground motion records collected by the strong motion networks in Jilin province and Heilongjiang province were routinely processed,including classification,baseline correction and filtering.The amplitude and acceleration response spectrum characteristics of the two seismic records were analyzed.Most of the two seismic records were from the far and medium field(100km away),while few were from the near field.The MS5.7 PGA ranges from 2.25 to 192.30 gal,the MS5.1 PGA ranges from 1.08 to 176.92 gal,and the maximum PGA value was obtained by 22FHT.The observed PGA values were compared with the attenuation relationship of the fifth generation seismic zoning map(medium and strong seismic zones)in China,and the vertical direction(UD)was consistent with the predicted values.The instrumental intensity obtained was compared with the seismic investigation intensity,and the 22DLB station was completely consistent with the investigation intensity value.Finally,the response spectrum and design spectrum of two typical stations are analyzed,among which the long-period component of the MS5.7 event is larger than that of the MS5.1 event.The response spectra of different magnitudes of the same station are similar in morphology,and the high frequency response is better than the low frequency response.
- References:
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Last Update:
2019-12-15