https://doi.org/10.1140/epjp/s13360-024-05576-3
Regular Article
Earthquake magnitude estimation based on peak ground displacements recorded by high-rate GNSS for February 6, 2023, earthquake sequence in Turkiye
1
Distance Education Vocational School, Afyon Kocatepe University, Afyonkarahisar, Turkey
2
Earthquake Implementation and Research Center of Afyon Kocatepe University, Afyonkarahisar, Turkey
3
Department of Geophysical Engineering, Ankara University, Ankara, Turkey
4
Department of Geomatics Engineering, Engineering Faculty, Afyon Kocatepe University, Afyonkarahisar, Turkey
5
General Directorate of Land Registry and Cadastre, Ankara, Turkey
6
Department of Geomatics Engineering, Gebze Technical University, Gebze, Kocaeli, Turkey
Received:
31
January
2024
Accepted:
16
August
2024
Published online:
11
September
2024
In this study, the global navigation satellite system (GNSS) high-rate data of 162 stations during the February 6, 2023, Kahramanmaraş earthquake sequence (Mw: 7.8 and Mw: 7.6) were evaluated with Precise Point Positioning (PPP) method. Co-seismic displacement time series of each of the GNSS stations during the earthquake sequence were generated. The results showed the amplitude of displacement decreased with increasing hypocentral distance. Both regression coefficients and the magnitudes of the February 6, 2023, Kahramanmaraş earthquakes were estimated by the peak ground displacement (PGD) obtained from these time series. The final magnitude estimated from the PGD was Mw 7.8 and Mw 7.6 for both earthquakes, respectively. Our results show that using high-rate GNSS data, earthquake magnitudes can be calculated with high accuracy by using regression coefficient suggested by Ruhl et al. (Seismol Res Lett, 90: 271-279, 2019).
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
