Short Note

Econ. Environ. Geol. 2018; 51(4): 393-400

Published online August 31, 2018

https://doi.org/10.9719/EEG.2018.51.4.393

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

The Abnormal Groundwater Changes as Potential Precursors of 2016 ML5.8 Gyeongju Earthquake in Korea

Hyun A Lee1, Se-Yeong Hamm2 and Nam C. Woo3*

1Earth System Sciences Research Center, Yonsei University
2Dept. of Geological Sciences, Pusan National University
3Dept. of Earth System Sciences, Yonsei University

Correspondence to : ncwoo@yonsei.ac.kr

Received: July 12, 2018; Revised: August 9, 2018; Accepted: August 23, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided original work is properly cited.

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.

Keywords earthquake, earthquake precursor, groundwater change, earthquake prediction, Gyeongju earthquake, earthquake hydrology

지하수위 이상 변동에 나타난 2016 ML5.8 경주 지진의 전조 가능성

이현아1 ·함세영2 ·우남칠3*

1연세대학교 지구시스템과학연구소
2부산대학교 지질환경과학과
3연세대학교 지구시스템과학연구소, 연세대학교 지구시스템과학과

요 약

Article

Short Note

Econ. Environ. Geol. 2018; 51(4): 393-400

Published online August 31, 2018 https://doi.org/10.9719/EEG.2018.51.4.393

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

The Abnormal Groundwater Changes as Potential Precursors of 2016 ML5.8 Gyeongju Earthquake in Korea

Hyun A Lee1, Se-Yeong Hamm2 and Nam C. Woo3*

1Earth System Sciences Research Center, Yonsei University
2Dept. of Geological Sciences, Pusan National University
3Dept. of Earth System Sciences, Yonsei University

Correspondence to:ncwoo@yonsei.ac.kr

Received: July 12, 2018; Revised: August 9, 2018; Accepted: August 23, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided original work is properly cited.

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.

Keywords earthquake, earthquake precursor, groundwater change, earthquake prediction, Gyeongju earthquake, earthquake hydrology

지하수위 이상 변동에 나타난 2016 ML5.8 경주 지진의 전조 가능성

이현아1 ·함세영2 ·우남칠3*

1연세대학교 지구시스템과학연구소
2부산대학교 지질환경과학과
3연세대학교 지구시스템과학연구소, 연세대학교 지구시스템과학과

Received: July 12, 2018; Revised: August 9, 2018; Accepted: August 23, 2018

요 약

    KSEEG
    Oct 30, 2023 Vol.56 No.5, pp. 501~628

    Stats or Metrics

    Share this article on

    • kakao talk
    • line

    Related articles in KSEEG

    Economic and Environmental Geology

    pISSN 1225-7281
    eISSN 2288-7962
    qr-code Download