陆态网络GPS连续站观测到的中国及周边地区2011—2015年MW6.0以上地震同震位移研究

doi:10.12196/j.issn.1000-3274.2024.04.012

Abstract

Abstract: Using high precision data processing software GAMIT/GLOBK, we obtain co-seismic displacement of the 14 earthquakes above M_W6.0 from 2011 to 2015, based on the CMONOC GPS continuous stations. Combining the tectonic background and the focal mechanism, we research the spatial distribution characteristic of co-seismic displacement field. The results show that the larger magnitude, the shallower source, the closer epicentral distance, the more obvious the co-seismic displacement can be observed by GPS stations. For the shallow source earthquakes, the observable range of co-seismic deformation effects is within 50 km for the M_W6.0~6.5 earthquakes, within 100 km for the M_W6.5~7.0 earthquakes, and exceeds 200 km for the earthquakes with magnitudes above M_W7.0.

Key words: CMONOC, GPS fiducial stations, Co-seismic displacement

CLC Number:

P315.7

WANG Zuo-yu, ZHAO Guo-qiang, WANG Yu-fan. Research on the Co-seismic Displacement of Earthquake above M_W6.0 in China and Its Surrounding Areas from 2011—2015 Based on Continuous GPS Observations[J]. EARTHQUAKE, 2024, 44(4): 183-193.

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Research on the Co-seismic Displacement of Earthquake above M_W6.0 in China and Its Surrounding Areas from 2011—2015 Based on Continuous GPS Observations

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Research on the Co-seismic Displacement of Earthquake above MW6.0 in China and Its Surrounding Areas from 2011—2015 Based on Continuous GPS Observations

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Research on the Co-seismic Displacement of Earthquake above M_W6.0 in China and Its Surrounding Areas from 2011—2015 Based on Continuous GPS Observations