Workshop 2018
Satoshi Kawamoto - Real-time coseismic fault model estimation based on RTK-GNSS analysis in Japan - October 29, 2018 • 553 Views
Displacement data produced by GNSS observations never saturate for large tsunamigenic earthquakes in contrast to seismometer data that has a limitation of instrument saturation. Geospatial Information Authority of Japan has launched a real-time GNSS analysis system named “REGARD” to provide finite fault models based on combined GPS and GLONASS solutions with ultra-rapid orbits from the IGS analysis centers. In this presentation, we show an overview of the system design and show the test results for the cases of the 2011 Tohoku earthquake (Mw 9.0) and a simulated Nankai Trough earthquake (Mw 8.7). Furthermore, an operational real-time result for the 2016 Kumamoto earthquake (Mj 7.3) is also shown.

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