Nishino-shima volcano news & activity updates:
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.
Links / Sources:
Links / Sources:
- Maps and photos of Nishino-Jima (Japanese Coast Guard)
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
Mon, 23 Dec 2013, 08:58
The new volcanic island continues to grow thanks to active lava flows and has now reached more than 50 meters and surpassed its mother island in height. Its continuing growth also makes it be at only about 50 meters shallow water distance from the Nishin-Jima island and it seems it might merge with it, rather than remaining an own new island, if activity continues. read all
Mon, 16 Dec 2013, 22:11
Activity continues at the new island and has apparently picked up in strength again. Lava flows have created a significant new delta of new land during the past 3 days, enlarging the island to a current width measuring approx. 400 (E-W) by 300 (N-S) meters. ... read all
Thu, 12 Dec 2013, 12:02
Activity has decreased significantly over the past days. A video from 10 December shows no more strombolian explosions, only degassing and no significant changes to the size of the island compared to a week ago. It is possible that there is still weak effusion of lava, but it appears that the eruption could have come to an end. read all
Mon, 9 Dec 2013, 15:48
The new island continues to grow slowly, increasing its surface by lava flows in all directions. Its diameter is now approx 300 meters. ... read all