Fig. 4From: InSAR analysis for detecting the route of hydrothermal fluid to the surface during the 2015 phreatic eruption of Hakone Volcano, JapanSurface displacement maps from InSAR analysis of ALOS-2/PALSAR-2 images. a 2015/6/18–2015/7/2 pair (Pair I), b 2015/6/7–2015/7/5 pair (Pair II), c 2015/5/15–2015/7/10 pair (Pair III), d 2015/5/28–2015/8/6 pair (Pair IV). Positive (red colored) areas indicate displacement toward the satellite, and negative (blue colored) areas show displacement away from the satellite. A, B, and C show displacement areas mentioned in the text. KM and SU show the summits of Kamiyama and Sounzan, respectively. Parameters details of each pair are shown in Table 1Back to article page