Journal of the Geological Society of Korea (지질학회지)

The Geological Society of Korea (대한지질학회)
권호 표지

Understanding of active faults: A review for recent researches

활성단층의 이해: 최근의 연구에 대한 고찰

  • Kim, Young-Seog (Department of Earth and Environmental Sciences, Environmental and Marine Sciences and Technology, Pukyong National University) ;
  • Jin, Kwangmin (Department of Earth and Environmental Sciences, Environmental and Marine Sciences and Technology, Pukyong National University) ;
  • Choi, Weon-Hack (Central Research Institute, Korea Hydro and Nuclear Power Co.) ;
  • Kee, Weon-Seo (Geological Research Division, Korea Institute of Geoscience and Mineral Resources)
  • 김영석 (부경대학교 지구환경과학과) ;
  • 진광민 (부경대학교 지구환경과학과) ;
  • 최원학 (한국수력원자력(주) 중앙연구원) ;
  • 기원서 (한국지질자원연구원 국토지질연구본부)
  • Published : 2011.12.30
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Abstract

Recently, several large earthquakes have resulted in significant human casualties and extensive damage to properties globally. Almost all large earthquakes occur by reactivation of preexisting active faults. As a result, there has been an increase in the amount of papeoseismological and historical earthquake studies. The Korean Peninsula has generally been considered to be a tectonically stable region compared with neighbouring countries such as Japan and Taiwan, because it is located on margin of the Eurasian intracontinental region. Some relatively big earthquakes (M>6.0) involving surface ruptures have, however, been reported in historic documents and recently several active faults that have offset Quaternary sediments have also been reported. This study explains the importance of active faults, the relationship between earthquakes and active faults, recent research methods on active faults and briefly introduces some Korean active faults. This paper will contribute to a better understanding of active faults and it will help to develop studies on earthquake hazards and disaster prevention.

최근 들어 전 세계적으로 대규모 지진이 자주 발생하여 많은 인명과 재산 피해가 발생했다. 대부분의 대규모 지진은 활성단층의 재활성에 의해 발생한다. 따라서 대규모 지진의 재발특성을 이해하기 위하여 고지진 및 역사지진에 대한 많은 연구가 활발히 수행되고 있다. 우리나라는 유라시아판 연변부에 위치하여 일본이나 대만과 같은 나라들에 비해 지진의 발생빈도가 상대적으로 적고 주기도 길지만 우리나라에서도 큰 재해와 지표파열 등을 수반하는 규모 6.0 이상의 대규모 지진들이 역사시대와 제4기 동안에 발생한 것으로 보고되고 있다. 이러한 결과들과 부합하여 최근 한반도에서는 약 50여개의 활성단층들이 발견되었다. 이 논문에서는 활성단층의 중요성, 지진과 활성단층의 상관관계, 전 세계적으로 이루어지는 최근의 활성단층에 대한 여러 연구방법들을 설명하고, 우리나라에서 보고된 활성단층들을 간략히 소개하고자 한다. 이 논문을 통하여 활성단층과 이들의 연구 방법에 대한 최근의 이해를 소개하여 지진재해의 연구와 방재시스템 등에 유용하게 활용할 수 있도록 하는데 이 논문의 목적이 있다.

Keywords

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