Development of rapid coseismic fault model estimation system based on the multiple geodetic data

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03713
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Solid earth and planetary physics
• Research Institution: Tohoku University
• Principal Investigator: Ohta Yusaku 東北大学, 理学研究科, 准教授 (50451513)
• Co-Investigator(Kenkyū-buntansha): 高橋 浩晃 北海道大学, 理学研究院, 教授 (30301930) ; 大久保 慎人 高知大学, 教育研究部自然科学系理学部門, 准教授 (50462940) ; 板場 智史 国立研究開発法人産業技術総合研究所, 地質調査総合センター, 主任研究員 (90589285)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: GNSS / 地殻変動連続観測 / 断層モデル即時推定 / 津波

Outline of Final Research Achievements

We developed the prototype system of rapid coseismic fault model estimation for the large earthquake whose magnitude is more than 7 based on real-time GNSS and strain meter. We showed the method for the high precision kinematic GNSS analysis and investigated the precision of kinematic GNSS time series using developed precise movable table for GNSS antenna. We also investigated the uncertainties estimation of the rapid coseismic fault model estimation using GNSS data based on MCMC approach. Furthermore, we improved the method for rapid coseismic fault model estimation based on borehole strain meter. Finally, we have started operation the prototype system of the distribution and its analysis of crustal deformation continuous observation data.

Free Research Field

測地地震学