Fig. 1From: Recent eruption history inferred from eruption ages of the two latest lava flows using multi-dating at Yokodake Volcano, Japana Index map of the Japanese islands showing Yokodake volcano. b Simplified geological map around Yatsugatake volcanoes referred from work by Nishiki et al. (2011). c Simplified geological map of the summit area of Yokodake volcano modified from that presented by Kawachi (1974). Distributions of Y8 and Y9 lava are shown. Circles, crosses, and squares, respectively, denote sampling locations for paleomagnetic dating, TL dating, and radiocarbon datingBack to article page