Get our newsletter!
Check out the volcano tours offered by Volcano-Adventures!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
12-18 Apr: Kilauea Volcano Special - Big Island, Hawaiʻi
22-29 Apr: Pearl of the Aegean - Santorini - Santorini Island, Greece
13-21 May: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
20-27(28) May: Fascination Volcano - Santorini Island (Greece)
29 May - 3 Jun: Aegean's Hidden Gem: Isle of Milos - Milos Island (Greece)
3-18 Jun: From Krakatau to Bali - Java (Indonesia)
4-11 Jun: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
10-18 Jun: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
8-23 Jul: From Krakatau to Bali - Java (Indonesia)
10-24 Jul: Volcanoes in the South Sea - Vanuatu (South Sea)
: spaces available / : guaranteed / : few spaces left / : booked out
 
Random pictures
News

no news in this list.

 

Nikko volcano

submarine volcano -391 m / -1,283 ft
Volcano Islands, Japan, 23.08°N / 142.31°E
Current status: dormant (1 out of 5)
Nikko volcano books
Typical eruption style: fumarolic
Nikko volcano eruptions: 1979 (?) No recent earthquakes
TimeMag. / DepthDistanceLocation
Nikko volcano is a large submarine volcano in the Volcano Islands chain of Japan. Discoloured water above the volcano has been observed almost every year between 1979 and 1990.

Background:

from Smithsonian / GVP volcano information:
Nikko submarine volcano is a massive seamount that rises from nearly 3 km depth to within 391 m of the sea surface at the SE end of a submarine ridge segment extending from Minami-Iwo-jima island. Two large cones at the basaltic-to-andesitic volcano have been constructed on the NW and NE rims of a roughly 3-km-wide, flat-floored submarine caldera, whose rim is prominently displayed on the southern side, but largely buried on the north. A smaller cones lies on the SE caldera floor. The larger NW cone lies within a partially buried crater and displays hydrothermal activity. Discolored water was observed above Nikko seamount in July 1979, but no water discoloration has been observed during semi-regular seasonal reconnaissance flights since then. Hydrothermal venting was documented during a recent NOAA expedition.


Latest satellite images

More on VolcanoDiscovery:

 
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.