日本地球惑星科学連合2018年大会

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[EE] 口頭発表

セッション記号 S (固体地球科学) » S-SS 地震学

[S-SS05] Effective usage of PSHA

2018年5月22日(火) 15:30 〜 17:00 A07 (東京ベイ幕張ホール)

コンビーナ:Matt Gerstenberger(GNS Science)、Schorlemmer Danijel(GFZ German Research Centre for Geosciences)、はお 憲生(防災科学技術研究所 防災システムセンター、共同)、Ma Kuo-Fong(Institute of Geophysics, National Central University, Taiwan, ROC)、座長:Gerstenberger Matthew(GNS Science, New Zealand)、Schorlemmer Danijel(GFZ-Potsdam, Germany)、Hao Ken(National Research Institute for Earth Science and Disaster Resilience, Japan)、Kuo-Fong Ma(Department of Earth Sciences, Institute of Geophysics, National Central University, Taiwan)

Seismic hazard models, including national seismic hazard models (NSHM) of most seismically active countries around the world are used by society for a wide range of applications, such as: optimising insurance rates, foundation of building design standards, large engineering projects and portfolio loss assessments. As such, these models need to be able to meet a wide range of end-user requirements. A crucial part of meeting those needs is to include a realistic assessment in the uncertainty in seismic hazard knowledge, and to translate that in a useful way to end-users and decision makers.

In this session we welcome presentations that address fundamental work in the development of seismic hazard models, particularly those that consider key uncertainties in the modeling and how these uncertainties can be modeled in a useful way for end-users. We have identified the following six dominant themes, but welcome topics from across the hazard and risk spectrum: 1) subduction-zone hazard is poorly understood but is significant source of uncertainty in many regions; 2) a focus on quantifying and including epistemic uncertainty is necessary, including uncertainty in fault and earthquake catalogue source models (and uncertainty due to data quality issues), as well as those in ground-motion prediction; 3) ground-motion simulations are becoming increasingly relevant for the NSHMs and require NSHM specific focus; 4) understanding how to include earthquake clustering and triggering will improve hazard forecasts; and 5) a focus on testing of hazard and model components will lead to improved NSHMs; 6) new approaches to seismic hazard and risk that will improve our understanding and the usefulness of hazard and risk models

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