Journal of the Korean Geophysical Society (지구물리)

Korean Society of Earth and Exploration Geophysicists (한국지구물리·물리탐사학회)
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Proposed program for monitoring recent Crustal movement in Korean Peninsula

  • Hamdy, Ahmed M. (National Research Institute of Astronomy and Geophysics Helwan) ;
  • Jo, Bong-Gon (Department of earth Environmental Sciences College of Natural Sciences Chonbuk National University)
  • Published : 20021200
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Abstract

The Korean peninsula is located at the edge of the East Asian active margin. The seismic activity in the Korean Peninsula is relatively low compared with the neighboring countries China and Japan. According to the available Seismic information, the Korean Peninsula is not totally safe from the Earthquake disaster. Moreover, the area is surrounded by varies tectonic forces which is resulted from the relative movements of the surrounding tectonic plates "Pacific, Philippine Sea, Eurasian and South China". Nowadays South Korea has 65 GPS stations belong to 5 governmental organizations "each organization figure out its own GPS stations for different requirements" In order to minimize the seismic hazard in the Korean Peninsula a program for monitoring the recent crustal movement has been designed considering the uses of the available GPS station "some selected stations from the previously mentioned stations" and the tectonic settings in and around the Korean Peninsula. This program is composed of two main parts, the first part to monitor the crustal deformation around the Korean Peninsula with the collaboration of the surrounding countries "China and Japan" this part is composed of two phases "East Sea Phase and Yellow Sea Phase". These phases will be helpful in determining the deformation parameters in the East Sea and the Yellow Sea respectively While the Second part of this program, is designed to determine the deformation parameters id and around the main faults in the Korean Peninsula and the relative movement between the Korean Peninsula and the Cheju Island. Through out this study the needs of crustal movement center rose up to collect the data from the previously mentioned stations and Organizations in order to use such reliable data in different geodynamical application.

한반도는 동아시아 활성 경계부의 끝에 위치해있다. 한반도에서의 지진 활동은 이웃나라인 중국과 일본에 비해서 상대적으로 낮은 편이다. 한반도에서의 지진정보에 따르면 한반도는 지진재해로부터 완전히 안전하지는 않다. 게다가, 한반도 주위의 "태평양, 필리핀해, 유라시아, 남중국"같은 구조적 판들의 상대적인 움직임의 결과로 생긴 다양한 구조적 힘에 의해 둘러 싸여져 있다. 현재 남한에는 5개의 정부기관에서 서로의 필요에 따라 설치한 65개의 GPS관측소를 가지고 있다. 한반도에서의 지진피해를 최소화하기 위해 현재, 앞서 언급한 지진관측소 중 몇 개의 관측소로부터의 GPS관측 자료와 한반도 내부와 주변부의 구조적 환경들을 함께 고려하여 근대의 지각운동을 관찰하는 프로그램이 계획되어 왔다. 이 프로그램은 두개의 주요 부분으로 이루어져 있으며, 첫째부분은 주변 국가인 "중국, 일본"과 협력하여 한반도 주위의 지각 변형을 모니터링하기 위한 것인데, 이 부분은 "East Sea Phase and Yellow Sea Phase" 두개의 페이스로 구성되어 있다 이러한 페이스들은 "East Sea Phase and Yellow Sea Phase"에서 각각의 변형 파라미터들을 결정하는데 도움을 줄 것이다. 한편, 이 프로그램의 두번째 부분은 한반도 주요 단층 내부와 주변의 변형 파라미터와 한반도-제주도 간의 상대운동을 결정하기 위해 계획되었다. 이번 연구를 통해서 다양한 지구 역학적 방법의 적용을 위한 신빙성 있는 자료로서 사용되기 위해, 앞서 언급한 관측소에서의 지각운동 중심부에서 기록된 자료의 필요성이 부각되었다.

Keywords

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