Preliminary results of the great Kahramanmaraş 6 February 2023 Earthquakes (MW 7.7
and 7.6) and 20 February 2023 Antakya Earthquake (MW 6.4), Eastern Türkiye
Şule Gürboğa, Önder Kayadibi, Hafize Akilli, Serap Arikan, Sevilay Tan
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引用次数: 0
Abstract
. In Abstract: The first M W 7.7 and second M W 7.6 Kahramanmaraş earthquakes were the strongest tectonic events in Eastern Türkiye since the M W 7.9 Erzincan earthquake in 1939. The first and second events occurred on the Pazarcık and Çardak segments of the East Anatolian Fault System, respectively. A subsequent significant earthquake of M W 6.4 occurred in the Antakya fault zone. We summarize preliminary earthquake data and share our previous field observations to better understand the mechanism and provide scientific consequences for future investigations and layout planning. After combining the field observations, kinematic analysis of fault surfaces, investigations of orthophotos, characteristics of mainshocks, and differential interferometry analysis of Sentinel-1A synthetic aperture radar images are used to evaluate the surface deformation from an earth sciences point of view. As a result, field data, paleostress analysis, and deformation zones are found to be completely consistent with the focal mechanism solutions of recent earthquakes. Furthermore, the first M W 7.7 event would have been caused by motion along the Pazarcık and Amanos segments at the same time as a single seismic
期刊介绍:
The Turkish Journal of Earth Sciences is published electronically 6 times a year by the Scientific and Technological Research
Council of Turkey (TÜBİTAK). It is an international English-language journal for the publication of significant original recent
research in a wide spectrum of topics in the earth sciences, such as geology, structural geology, tectonics, sedimentology,
geochemistry, geochronology, paleontology, igneous and metamorphic petrology, mineralogy, biostratigraphy, geophysics,
geomorphology, paleoecology and oceanography, and mineral deposits. Contribution is open to researchers of all nationalities.