The abnormal groundwater changes as potential precursors of 2016 ML5.8 Gyeongju earthquake in Korea

Hyun A. Lee, Se Yeong Hamm, Nam C. Woo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Despite some skeptical views on the possibility of earthquake prediction, observation and evaluation of precursory changes have been continued throughout the world. In Korea, the public concern on the earthquake prediction has been increased after 2016 ML5.8 and 2017 ML5.4 earthquakes occurred in Gyeongju and Pohang, the southeastern part in Korea, respectively. In this study, the abnormal increase of groundwater level was observed before the 2016 ML5.8 Gyeongju earthquake in a borehole located in 52 km away from the epicenter. The well was installed in the Yangsan fault zone, and equipped for the earthquake surveillance. The abnormal change in the well would seem to be a precursor, considering the hydrogeological condition and the observations from previous studies. It is necessary to set up a specialized council to support and evaluate the earthquake prediction and related researches for the preparation of future earthquake hazards.

Original languageEnglish
Pages (from-to)393-400
Number of pages8
JournalEconomic and Environmental Geology
Volume51
Issue number4
DOIs
Publication statusPublished - 2018 Aug

All Science Journal Classification (ASJC) codes

  • Environmental Science (miscellaneous)
  • Geology
  • Economic Geology

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