Fig. 2

Geological map of the southeastern-central part of the NKTZ and a region outside (to the southeast of) the zone, modified after Geoland Gifu (https://geo-gifu.org/geoland/gaikan/contents_top.html). Red lines are Quaternary fault traces or lineaments reported by Research Group for Active Faults of Japan (1991). The rectangles enclose the studied Inobuseyama and Kurumijima areas (see Figs. 6 and 10, respectively). Topographical map (1:25,000) is from the Geospatial Information Authority of Japan. AGF Atotusgawa Fault, INF Inagoe Fault, TGF Toichigawa Fault, UHF Unehata Fault, SKF Shirakawa Fault, ENF Enako Fault, KDF Kuchiudo Fault, IHF Inohana Fault, OSF Osaka Fault