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Nishima-Shima volcano (Japan): submarine volcanic eruption gives birth to new island

Wed, 20 Nov 2013, 22:07
22:07 PM | BY: T
Surtseyan activity near Nishima-Shima Island where a new island was formed (Japanese Coast Guard via Blog Culture Volcan)
Surtseyan activity near Nishima-Shima Island where a new island was formed (Japanese Coast Guard via Blog Culture Volcan)
A new island was born today in the Pacific Ocean in Japan's Izu (or Volcano) island chain. It is produced by a new submarine eruption which is currently taking place about 500 m southeast of Nishino-Shima island.
The eruption was first spotted by Japanese navy this morning at 10:20 (local time) who documented surtseyan activity at the eruption site (explosive interaction of sea-water and lava, generating violent jets of steam and ash). It appears that the eruption has already built an island of about 200 m diameter in size, which suggests that the vent was already located in very shallow waters.
A small steam and ash plume rising to about 2000 ft (600 m) was reported by VAAC Tokyo. The last known eruption of the volcano occurred in 1973 .

Previous news

Wed, 20 Nov 2013, 06:00

Nishinoshima volcano (Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 20 November-26 November 2013 (New Activity / Unrest)

The Japanese Coast Guard reported that a Surtseyan eruption 500 m SE from the coast of Nishimo-shima generated a new island called Niijima on 20 November. The island was about 300 x 200 m, and developed a crater 150m wide. Discolored water surrounded the island. ... Read all
caldera, submarine volcano approx 70 m / 215 ft (currently growing)
Volcano Islands, Japan, 27.27°N / 140.88°E
Current status: minor activity or eruption warning (3 out of 5) Nishino-shima volcano eruptions:
2019-ongoing, 2017, 2013-15, 1985(?), 1982(?), 1980(?), 1978(?), 1975(?), 1973-74
Typical eruption style
explosive
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