Establishment of a predictable method for interlocking of active-fault and trench-type great earthquake by considering a fault process zone

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350498
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Natural disaster / Disaster prevention science
• Research Institution: Yamaguchi University
• Principal Investigator: Kanaori Yuji 山口大学, 理工学研究科, 教授 (60194883)
• Co-Investigator(Kenkyū-buntansha): IMAOKA Teruyoshi 山口大学, 大学院理工学研究科, 教授 (30193668)
• Co-Investigator(Renkei-kenkyūsha): OHTANI Tomoyuki 岐阜大学, 工学部, 准教授 (20356645) ; ISHIDA Tsuyoshi 京都大学, 工学研究科, 教授 (10232307) ; TODA Shinji 東北大学, 災害科学国際研究所, 教授 (80313047)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 自然災害 / 地震 / 活断層 / テクトニクス / スケーリング則

Outline of Final Research Achievements

Three type earthquakes; active-fault, trench-type, and intra-slab earthquakes are clarified to occur successively, by analyzing pre-existing data of these earthquakes. Active- fault and intra-slab earthquakes also occurred after the 2011 off the Pacific coast of Tohoku Earthquake.
Analysis of earthquake motion around active faults before and after a trench-type earthquake are conducted for potential faults, which have a high risk of earthquake generation, by the pseudo-3D fault motion simulation of considering a fault process zone, and it successive movement of the active fault and the earthquake interlocking are confirmed.

Free Research Field

自然災害科学