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High-frequency signal recorded by gPhone gravitymeters in Wenchuan Ms8.0 earthquake

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Authors:Zhou Lei; Shen Chongyang; Wei Jin; Ren Zhengtang
Author Affiliations:Primary:
China Earthquake Administration, Institute of Seismology, Beijing, China
Wuhan Base of Institute of Crustal Dynamics, China
Volume Title:Dadi Celiang yu Diqiu Dongli Xue Journal of Geodesy and Geodynamics
Source:Dadi Celiang yu Diqiu Dongli Xue = Journal of Geodesy and Geodynamics, 33( Suppl. 1), p.16-19. Publisher: Gai Kan Bianjibu, Wuhan, China. ISSN: 1671-5942
Publication Date:2013
Note:In Chinese with English summary. 9 refs.
Summary:The high-frequency data of the gPhone gravimeter recorded during the earthquake is crucial data for researches on the source rupture process. In this paper, we analyzed coseismic signal recorded by six gPhone gravimeters in the Wenchuan Ms8.0 earthquake. The results show that: 1) we can completely obtain the seismic wave image showing the initial moments and its decaying process. Compared with the data of the broadband seismometer, we confirmed that observation of gPhone gravimeter is a true record of the source rupture process. 2) by means of empirical Green's function and synthesizing theory graphics, compared with the inverted results from seismic data, we proved that the high-frequency data of gPhone gravitymeters can be greatly used in the research of the source rupture process.
Subjects:Acceleration; Coseismic processes; Data processing; Earthquakes; Gravimeters; Green function; Inverse problem; Seismograms; Signals; Wenchuan earthquake 2008; Asia; China; Far East; Sichuan China; Wenchuan China; GPhone gravimeters
Coordinates:N311323 N311323 E1031948 E1031948
Record ID:790150-5
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute.
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