Ground displacement of the 6 July 2019 Ridgecrest earthquake from the GNSS permanent stations

Nguyen Ngoc Lau; Phan Trong Trinh; Tran Van Phong; Binh Thai Pham

doi:10.15625/0866-7187/41/4/14234

Author affiliations

Authors

Nguyen Ngoc Lau Ho Chi Minh City University of Technology, Vietnam
Phan Trong Trinh 1-Institute of Geological Sciences, VAST, Hanoi, Vietnam 2- Royal Academy for Oversea Sciences, Brussels, Belgium. 3-Graduate University of Science and Technology, VAST, Hanoi, Vietnam
Tran Van Phong Institute of Geological Sciences, VAST, Hanoi, Vietnam
Binh Thai Pham University of Transport Technology, Hanoi 100000, Vietnam

DOI:

https://doi.org/10.15625/0866-7187/41/4/14234

Keywords:

The 6th of July, 2019 Ridgecrest earthquake, GNSS, PPP, California

Abstract

The Eastern California earthquake (also known as the Ridgecrest earthquake) occurred at 03:19:53 (UTC) on the 6^th of July, with a moment magnitude of 7.1. Over the region, there is an accurate network of GNSS permanent stations. Precise determination of displacements of these stations will provide important information to better understand the structure and scope of the earthquake, contributing to faster and more accurate earthquake prediction. In this paper, we used precise point positioning with ambiguity resolution to determine the co-seismic displacements of 25 GNSS stations around the epicenter for the day of the earthquake. The processing results show that the affected area being more than 100 km centered around the earthquake epicenter with the largest value being approximately
0.6 m.

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