日本地球惑星科学連合2018年大会

セッション情報

[EE] Eveningポスター発表

セッション記号 S (固体地球科学) » S-SS 地震学

[S-SS06] CSEP, earthquake forecast testing, and the role of SSE in earthquake occurrence.

2018年5月21日(月) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 7ホール)

コンビーナ:Schorlemmer Danijel(GFZ German Research Centre for Geosciences)、平田 直(東京大学地震研究所)、Matt Gerstenberger(共同)、鶴岡 弘(東京大学地震研究所)

The Collaboratory for the Study of Earthquake Predictability (CSEP) has expanded over the years to many different testing areas hosted at multiple testing centers. One of which is the Japan testing center at the University of Tokyo, operated in collaboration with GFZ Potsdam. Hundreds of earthquake forecast models have been submitted to CSEP and are being tested. New testing metrics were developed and implemented and a lot of progress was made to establish CSEP as an institution that cannot be ignored when issuing earthquake forecasts. Its rigor and independence became the standard in evaluating earthquake forecasts and in reporting on the results.

Although the tests CSEP has conducted have been successful and well-received, they have also shown the limitations of the CSEP approach. What is a sufficient testing period for models? Are time-invarying models really describing the long-term seismic activity? Are long-term models testable at all? Do short-term models provide significant information for the forecasting problem or do they only model aftershock sequences? What other signals should be included in forecasting models to improve them? Do improvements in forecasting models translate into improvements of hazard models? Many aspects of seismic hazard or earthquake forecasting remain inherently untestable if only the model forecasts are tested and not the model ingredients. We propose to create new areas of activity for CSEP, namely targeted experiments that cannot be conducted with the current CSEP software system.

We solicit contributions addressing forecasting models, forecast testing problems, new ideas for CSEP experiments, possibilities of further CSEP developments, ways of expanding CSEP into the hazard and risk domain, and more general views on the forecasting problem. This is aimed at fostering the discussion in the community about further goals of earthquake forecasting experiments.

*久保田 達矢1齊藤 竜彦1伊藤 喜宏2日野 亮太3鈴木 秀市3Kaneko Yoshihiro4Wallace Laura4,5 (1.防災科学技術研究所、2.京都大学防災研究所、3.東北大学大学院理学研究科、4.GNS Science、5.Institute for Geophysics, The University at Texas at Austin)

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