Oki-Dogo volcano is a complex of shield volcanoes forming small islands north of the SW Honshu city of Matsue in the Japan Sea off the west coast of Japan. Most of the volcanic activity took place 800,000-300,000 years ago, but there has probably been activity during the past 10,000 years as well, producing basaltic lava flows and a cinder cone.
Dogo-onsen Hot Spring is Japan's oldest spa. It is said to have been in operation since about 3000 years ago.
Background:
The alkaline basalts on Oki-Dogo are related to the opening of the Japan Sea and contain abundant mantle-derived xenoliths. The Daimanji-san lava flow overlies alluvial gravel containing an ancient water-jar. The name Takuhi-yama ("Burning Mountain") may record a tradition of an eruption. (GVP information)
The lights of Goma town in the background left remind me of standing on Etna volcano and looking down to Catania... (Photo: Tom Pfeiffer)
Volcanic trio: Batok cinder cone, smoking Bromo, and majestic Semeru with an umbrella cloud (c)
Moonless night over the Danakil desert looking north towards Polaris standing low above the horizon. The glow of distant Erta Ale volcano is visible in the right. (Photo:...
The complex of Marum crater and its surrounding pit craters: Mbwelesu (l), Marum's west pit with the lava lake (a.l.), smoking Niri Mbwelesu (c), and Niri Mbwelesu Tatem ...
Eruption at Semeru volcano with smoking Bromo and the eroded cone of Batok volcanoes in the foreground. (Photo: Tom Pfeiffer)
Smoking Bromo volcano and Batok cone with its deep radial erosion gullies (c)
