인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Abstract The 2024 Mw 7.5 Noto Peninsula Earthquake broke through a previously documented active fault system over 150 km in the northern central Japanese Island. This fault system is characterized by geometrical complexity. It is important to understand the physical mechanism underlying the multi-fault rupture. We conduct fully dynamic rupture simulations and identify that the 3D fault geometry controls the observed rupture process and heterogeneous spatiotemporal patterns of the fault slip, seismic radiation and crustal deformation exhibiting about five meters of the maximum uplift. Aiming to examine the effect of the 3D fault geometry, we exclude the heterogeneity arising from the frictional properties. We also avoid retrospective frictional parameter tunings to fit the coseismic observations to test whether it is possible for our forward modeling to reproduce the coseismic observations. The 3D nonplanar geometry model is built based on the previously documented surface fault traces, and we use the regional stress field determined by the stress tensor inversion. As a result, the dynamic rupture simulation reasonably reproduces the observed characteristics of the heterogeneous deformation patterns. We find the rupture is accelerated, and slip is increased, where the fault is bent and optimally oriented to the regional stress orientations. Remarkably, the spatial distribution of surface displacement captured by the Synthetic Aperture Radar imageries is quantitatively reproduced, as characterized by two areas of large and small peaks of uplifts. Our findings may contribute to better constraining future earthquake rupture scenarios. Graphical Abstract
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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