Seismotectonics of Hokkaido, the collisional area between NE Japan and Kuril arcs.
GEBCO, AW3D30, GSHHG, GlobalCMT (M>4, 1991-2020), Uchide (2022)(GSJ, AIST), JMA Unified Hypocenters (1998-2021, D<20 km), Seamless Geological Map (GSJ, AIST), Volcanoes and Calderas (GSJ, AIST)
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