Fukutoku-Oka-no-Ba volcano (Volcano Islands, Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 February-9 February 2010 (New Activity / Unrest)
According to news articles, JMA reported Surtseyan explosions from Fukutoku-Okanoba, 5 km NE of the island of Minami-Iwo-jima, on 3 February. Steam-and-ash plumes rose 100 m a.s.l. and the surrounding sea turned yellow-green.
Mi, 3. Feb 2010, 06:0006:00 AM | VON: VN
Video footage of the event was captured by people aboard a Japanese Coast Guard patrol boat. One article stated that the sea in the area had regularly changed colors since the 1950s, most recently in December 2009.
Sources: ITN News, The Mainichi Daily News
From: Global Volcanism Program, 2010. Report on Fukutoku-Oka-no-Ba. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 3 February-9 February 2010. Smithsonian Institution and US Geological Survey.
So, 3. Jul 2005, 22:21
A submarine volcano erupted in Japan. It is located about 6 kilometers north-northeast of Minami-Iwojima island in Ogasawaramura (about 1,300 kilometers from Tokyo).On the evening of 2 July, the Japanese coast guard spotted large amounts of steam rising to about 1 km height above the sea at the site of the submarine volcano, as well as a strong discoloration of the water. On photos taken on 3 July, porous, steaming lava blocks are appearing on the surface of the sea. Ships are advised to avoid the area. Read all
Mi, 29. Jun 2005, 06:00
Fukutoku-Oka-no-Ba volcano (Volcano Islands, Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 29 June-5 July 2005 (New Activity / Unrest)
On the evening of 2 July, members of the Japan Coast Guard observed a steam plume rising ~1 km above the sea near the island of Minami-Iwo-jima. On 3 July, JMA confirmed that a small-scale eruption had occurred at the submarine volcano Fukutoku-Okanoba, prompting the Japan Coast Guard to issue a warning against sailing in the area. Observers saw rock and mud rising to the sea's surface near the volcano and a ~1-square-km area of water that had turned orange-brown. ... Read all