Nishino-Shima volcano (Izu Islands, Japan): lava flows continue to enlarge merged island
Mon, 6 Jan 2014, 13:3713:37 PM | BY: T
The new island that had "touched" Nishino-Shima has continued to grow and the two islands form now a coherent single one, with a interesting "butterfly" shape. This might of course change quickly again as well. There are now no traces left of the beach and the little colored lake that existed a week ago when the two islands started to merge.
Comparison of Nishino-shima between 28 Dec and 6 Jan (Japanese Coast Guard)
The image shows a comparison of two aerial photographs taken on 28 Dec and 6 Jan by the Japanese Coast Guard.
Most of the island's growth during the past days was by lava flows that formed and enlarged the lava delta to the SW, the currently lowest-lying area (which is the most natural place for new lava flows to head to). It can also be seen that the two vents first observed on 26 Dec are still active. At the moment, it is unclear whether strombolian activity is still occurring, but this seems likely.
Fri, 27 Dec 2013, 07:03
The recently born new Niijima island merged with the main island Nishino-Jima yesterday. Both are in fact two summits of the same volcanic edifice. Activity continues to enlarge the new land by lava flows and occasional strombolian explosions. ... Read all
Wed, 25 Dec 2013, 06:00
Nishinoshima volcano (Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 December-31 December 2013 (New Activity / Unrest)
According to a news article, since mid-December lava flows from the newly formed Niijima island expanded NE towards Nishino-shima, and on 24 December the two islands joined. The Niijima area was about 500 m long and 450 m wide. ... Read all