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Nishino-shima vulkaan
caldera, submarine volcano approx 70 m / 215 ft (currently growing)
Volcano Islands, Japan, 27.27°N / 140.88°E
Current status: restless (2 out of 5)
Nishino-shima webcams / Live-gegevens | Reports
Nishino-shima vulkaan boeken
Nishino-shima vulkaanuitbarstingen:
2017, 2013-15, 1985(?), 1982(?), 1980(?), 1978(?), 1975(?), 1973-74
Typical eruption style:
explosive
Laatste aardbevingen in de omgeving
Meest recente satellietbeelden

Sentinel hub | Landsat 8
 

Nishino-shima volcano news & activity updates:

Nishino-shima volcano (Japan): island continues to grow

Sunday Aug 31, 2014 16:23 PM | DOOR: T

View of the Nishino-Shima island from the west on 26 Aug (Japanese Coast Guard)
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)
Small explosion from the summit crater (infrared image)
The island remains active and continues to grow as lava flows add new land to it. The Japanese Coast Guard made another survey flight on 26 August and observed ongoing effusive and explosive activity in the main crater.
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.
Vorig nieuws
Nishinoshima on 23 July (image: Japanese Coast Guard)
Monday, Jul 28, 2014
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: ... [meer...]
Landsat 8 images of Nishino-Shima on 2 June and 4 July, showing the new platform to the east (images: AIST, annotation: Culture Volcan)
Wednesday, Jul 16, 2014
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). ... [meer...]
Monday, Jun 30, 2014
An explosive event occurred last night at the growing island volcano. VAAC Tokyo reported an ash plume at 10,000 ft (3 km) altitude drifting to the northeast. [meer...]
3 vents at Nishinoshima volcano (13 June)
Thursday, Jun 19, 2014
Eruptions continue to add land to the remote island volcano. Recent pictures by the Japanese Coast guard on 11 and 13 June show steaming along the shoreline, indicating active lava flow fronts, possibly tube-fed since no surface incandescence was visible. ... [meer...]

Friday, May 23, 2014
The eruption on the remote island continues. The most recent overflight pictures by the Japanese Coast Guard show two active vents, one with a small lava-filled vent likely producing strombolian explosions, the other emitting a steam and gas plume. ... [meer...]

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