Fig. 2
From: Reconstruction of the 2014 eruption sequence of Ontake Volcano from recorded images and interviews
Aerial photographs of Ontake Volcano on the day following start of the 2014 eruption. Photographs were taken on September 28, 2014, by T Oikawa from a helicopter of Chunichi Shimbun. The area covered by the PDCs is colored in gray or griseous white in the photographs. a View from the SSE. The valley that extends in front of the photograph is Jigoku-dani (also see Fig. 1). a–c Crater names (also see Fig. 1). White arrows show the direction of muddy water flow from the 2014 craters in the Jigoku-dani. b The craters in Jigoku-dani and under the Okunoin, viewed from the south. The rightmost crater in the photograph is the crater under Okunoin. White arrows show the direction of muddy water flow from the 2014 craters. Black arrows represent small pyroclastic cones in the Jigoku-dani. c Summit of Ontake Volcano, viewed from the north. The center left of the crater topography is Ichi-no-ike, and the pond is Ni-no-ike. The right side of the photograph is the Hyoe-tani (Shin-tani) side