[1]ZHAN Xiaoyan,ZHANG Dong,WANG Kai,et al.Calculation of P-wave Spectrum Magnitude and Seismic Radiation Energy of Jiangsu Digital Seismic Network[J].Journal of Seismological Research,2021,44(01):15-21.
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Calculation of P-wave Spectrum Magnitude and Seismic Radiation Energy of Jiangsu Digital Seismic Network
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
44
Number of periods:
2021 01
Page number:
15-21
Column:
Public date:
2021-01-15
- Title:
- Calculation of P-wave Spectrum Magnitude and Seismic Radiation Energy of Jiangsu Digital Seismic Network
- Keywords:
- P-wave spectrum magnitude; seismic radiant energy; broadband recording; regional seismic network
- CLC:
- P315.32
- DOI:
- -
- Abstract:
- In this paper,based on the broadband records of Jiangsu Digital Seismic Network,we measured the P-wave spectrum magnitude(MP)of moderate and strong earthquakes,and estimated the seismic radiation energy.The results show that there is a good consistency between the MP measured in this paper and the results of MS measured by China Seismic Networks Center(CENC)and MW measured by German Geoscience Center(GFZ).The average deviations between MP and two magnitudes are only about 0.17 and 0.10,which are basically less than the measurement error(generally about 0.2)between the same magnitude of the world's major earthquake agencies.At the same time,the seismic radiation energy estimated based on MP is very close to that obtained from the conversion of MS based on the modified G-R relationship,and the ratio of their average energy is about 1.1,which shows that the energy flow of MP and the P-wave group(P+pP+sP)are basically equivalent.So,it is feasible to determine the P-wave spectrum magnitude and seismic radiation energy of moderate and strong earthquakes based on broadband digital records,and the measurement process is simple and fast.
- References:
- -
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Last Update:
2021-01-15