中文版 | English
Title

On the Potential of Rapid Moment Magnitude Estimation for Strong Earthquakes in Sichuan Yunnan Region, China, Using Real-Time CMONOC GNSS Observations

Author
Corresponding AuthorChen,Kejie
Publication Years
2022-09-01
DOI
Source Title
ISSN
0895-0695
EISSN
1938-2057
Volume93Issue:5Pages:2659-2669
Abstract

High-rate (>1 Hz) real-Time Global Navigation Satellite Systems (GNSS) data have been now incorporated into earthquake early warning systems where dense GNSS network exists, like the United States west coast, Japan, and so on. In this manuscript, we exploit the potential of rapid moment magnitude (Mw) estimation in Sichuan Yunnan region using GNSS records from Crustal Movement Observation Network of China (CMONOC) for seven magnitude (M) < 6 events from 2011 to 2020. We find that currently it is still quite challenging to get reliable Mw using the peak ground displacement or peak ground velocity approach,which is caused by the sparse stations and probably the inaccurate scaling law itself. By contrast, the Mw estimations from focal mechanism grid search are all consistent with Global CentroidMoment Tensor catalog, even by one station. Considering the CMONOC network is going to be densified in the coming decade, it is expected that high-rate GNSS waveforms will play a more important role in fast postevent response.

URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
Corresponding
ESI Research Field
GEOSCIENCES
Scopus EID
2-s2.0-85138484498
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/402721
DepartmentDepartment of Earth and Space Sciences
Affiliation
1.Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Heilongjiang,China
2.Key Laboratory of Earthquake Disaster Mitigation,Ministry of Emergency Management,Heilongjiang,China
3.Department of Earth and Space Sciences,Southern University of Science and Technology,Guangdong,China
4.Institute of Geophysics and Geomatics,China University of Geosciences,Hubei,China
5.Institute of Geophysics,China Earthquake Administration,Beijing,China
6.China Earthquake Networks Center,China Earthquake Administration,Beijing,China
First Author AffilicationDepartment of Earth and Space Sciences
Corresponding Author AffilicationDepartment of Earth and Space Sciences
Recommended Citation
GB/T 7714
Wei,Guoguang,Chen,Kejie,Zou,Rong,et al. On the Potential of Rapid Moment Magnitude Estimation for Strong Earthquakes in Sichuan Yunnan Region, China, Using Real-Time CMONOC GNSS Observations[J]. SEISMOLOGICAL RESEARCH LETTERS,2022,93(5):2659-2669.
APA
Wei,Guoguang,Chen,Kejie,Zou,Rong,Song,Jindong,&Li,Yu.(2022).On the Potential of Rapid Moment Magnitude Estimation for Strong Earthquakes in Sichuan Yunnan Region, China, Using Real-Time CMONOC GNSS Observations.SEISMOLOGICAL RESEARCH LETTERS,93(5),2659-2669.
MLA
Wei,Guoguang,et al."On the Potential of Rapid Moment Magnitude Estimation for Strong Earthquakes in Sichuan Yunnan Region, China, Using Real-Time CMONOC GNSS Observations".SEISMOLOGICAL RESEARCH LETTERS 93.5(2022):2659-2669.
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