Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 25, issue 10
Articles | Volume 25, issue 10
https://doi.org/10.5194/nhess-25-4021-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-25-4021-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 10
Research article
 | 
20 Oct 2025
Research article |  | 20 Oct 2025

An updated, homogeneous, and declustered earthquake catalog for South Korea and neighboring regions

Soumya Kanti Maiti and Byungmin Kim

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Short summary
A unified earthquake catalog for South Korea and its surroundings was developed, containing 63 298 events. Four declustering methods, including Gardner–Knopoff, Reasenberg, Uhrhammer, and Marsan, were compared to identify the mainshocks. The catalog offers a reliable database for seismic hazard assessments and seismotectonic studies. It fills gaps in previous studies, providing an up-to-date catalog for accurate seismic risk assessment and future earthquake forecasting in the region.
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