Friday, November 22, 2013

[Geology / News • 2013] Nishima-Shima Volcano: Submarine Volcanic Eruption Gives Birth to New Island Off Japan




Nishima-Shima Volcano
: Submarine Volcanic Eruption Gives Birth to New Island Off Japan

A new island was born today [20 Nov 2013] 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 600 m. was reported by VAAC Tokyo. The last known eruption of the volcano occurred in 1973 .





Underwater Volcanic Eruption Gives Birth To New Island Off Japan
http://www.buzzfeed.com/mbvd/underwater-volcanic-eruption-gives-birth-to-new-island-off-j via @michellebvd

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



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