「首都直下地震防災・減災特別プロジェクト」サブプロジェクト1「首都圏周辺でのプレート構造調査,震源断層モデル等の構築等」の概要

概要

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A special project for earthquake disaster mitigation in the Tokyo Metropolitan Area is underway (2007−2011). Assessment in Kanto of seismic hazards produced by the Philippine Sea Plate (PSP) mega-thrust earthquakes requires identification of all significant faults, possible earthquake scenarios, rupture behavior, regional characterizations of PSP geometry, physical properties of overlying Honshu arc and local near-surface seismic site effects. We are developing a dense seismic network in the urban area with 178 stations so far. Seismic images with improved spatial resolution beneath the Tokyo Metropolitan Area are obtained to assess source areas of the coming large metropolitan earthquakes.
2010-01-28