Relief shown by contours. Panel title. Insets: Aogashima Kazan chishitsuzu = Geological map of Aogashima Volcano "Kono chizu wa Aogashima-mura Kyōiku Iinkai hakkō no 5-senbun no 1 no chikeizu o shiyōshimashita "5 seisōhatsu dai 290-gō""--Izu Shotō nanpō kaitei kazan chishitsuzu = Geological map of submarine volcanoes, south of Izu Islands "Suiro zushi fukusei "Kaijō Hoanchō shōnin dai 060303-gō"" Text and illustrations on verso. Insets: 青ヶ島火山地質図 = Geological map of Aogashima Volcano "この地図は青ヶ島村教育委員会発行の5千分の1の地形図を使用しました "5青総発第290号""--伊豆諸島南方海底火山地質図 = Geological map of submarine volcanoes, south of Izu Islands "水路図誌複製 "海上保安庁承認第060303号""