Aerial photographs taken around Nishinoshima
An eruption at sea was confirmed approximately 500m east-southeast of Nishinoshima at around 10:20 on November 10th, 2013, and at approximately 16:17 on the same day the formation of a new island was confirmed. Thereafter the area of the island carried on expanding as the new island eruption continued.
Geospatial Information Authority of Japan(GSI) took aerial photographs around Nishinoshima on December 4th and December 17th and conducted photographic interpretation. GSI released these photographs and topographic interpretation map publicly.
We also publicly released information gleaned from aerial photographic interpretation of topographic features of the new island, such as lava flows.