Nishino-shima volcano (Japan): island continues to grow
Sun, 31 Aug 2014, 16:23 | BY: T
View of the Nishino-Shima island from the west on 26 Aug (Japanese Coast Guard)
View of the small lava dome inside the summit crater
Small explosion from the summit crater (infrared image)
A comparison with pictures from July shows that a new 3-400 m wide platform to the northeast of the island has been added as new land during the past weeks.
In addition, what appears to be a small lava dome has appeared inside the crater of the main cone. It unclear when and how exactly it formed, but is the site of at least occasional explosions.
The "dome" could be simply the result of some older lava pushed up to the vent by rising fresh magma underneath, or is could represent the latest erupted magma. In that case, it would be an indication that either the lava currently erupted is slightly more viscous and/or effusion rate has dropped, allowing the lava to cool down more effectively and accumulating to form the cake-like dome, rather than to feed flows. The absence of active lava flows entering the sea on the latest pictures would be in agreement with this.
- All news about: Nishino-shima volcano
- Information about: Nishino-shima volcano
Previous news
Mon, 28 Jul 2014, 15:38
Nishino-shima volcano (Japan): significant growth of the new island by continuing lava flows and strombolian activity
Activity at the growing island continues, perhaps even with increased intensity, judging from the recent pictures obtained by the Japanese Coast Guard on 23 July: ... Read all
Wed, 16 Jul 2014, 14:27
Nishino-shima volcano (Volcano Islands, Japan) activity update
The currently fastest growing island of the world remains active, with both effusive (lava flows enlarging the island) and explosive activity (strombolian and phreatomagmatic = water-magma explosions). Read all
Show more