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한반도 남부에서 부지효과를 고려한 물리적 지진동 모델링 기반 진도 감쇠 특성 분석 연구 KCI 등재

Analysis of Intensity Attenuation Characteristics Using Physics-based Earthquake Ground-motion Simulation with Site Effect in the Southern Korean Peninsula

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한국지구과학회지 (The Journal of The Korean Earth Science Society)
한국지구과학회 (The Korean Earth Science Society)
초록

This study simulated strong ground motion waveforms in the southern Korean Peninsula, based on the physical earthquake modeling of the Southern California Earthquake Center (SCEC) BroadBand Platform (BBP). Characteristics of intensity attenuation were investigated for M 6.0-7.0 events, incorporating the site effects. The SCEC BBP is software generates broadband (0-10 Hz) ground-motion waveforms for earthquake scenarios. Among five available modeling methods in the v16.5 platform, we used the Song Model. Approximately 50 earthquake scenarios each were simulated for M 6.0, 6.5, and 7.0 events. Representative metrics such as peak ground acceleration (PGA) and peak ground velocity (PGV) were obtained from the synthetic waveforms that were simulated before and after the consideration of site effects (VS30). They were then empirically converted to distribution of instrumental intensity. The intensity that considers the site effects is amplified at low rather than high VS30 zones.

목차
Abstract
요 약
서 론
연구 방법
    강지진동 모사 플랫폼
    부지 효과
    수정 메르칼리 진도
    강지진동 지진파형 모사
연구 결과
    강지진동 지진파형 특성
    부지 효과(VS30) 고려 전과 후의 진도 감쇠 특성
    동일 규모에서 PGA와 PGV 기반 진도 감쇠 특성
논 의
결 론
References
저자
  • 안소현(한국교원대학교 지구과학교육과) | So Hyeon An (Department of Earth Science Education, Korea National University of Education)
  • 경재복(한국교원대학교 지구과학교육과) | Jai Bok Kyung (Department of Earth Science Education, Korea National University of Education)
  • 송석구(한국지질자원연구원 지진연구센터) | Seok Goo Song (Earthquake Research Center, Korea Institute of Geoscience and Mineral Resources (KIGAM),) Corresponding author
  • 조형익(한국지질자원연구원 지진연구센터) | Hyung-Ik Cho (Earthquake Research Center, Korea Institute of Geoscience and Mineral Resources (KIGAM))