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Nishino-shima volcano (Japan): eruption continues, new bathymetric report

Wed, 21 Oct 2015, 08:56
08:56 AM | BY: T
Strombolian activity at Nishinoshima on 18 Oct 2015 (Japan Coast Guard)
Strombolian activity at Nishinoshima on 18 Oct 2015 (Japan Coast Guard)
Cross section of the island showin the land added during the ongoing eruption (yellow)
Cross section of the island showin the land added during the ongoing eruption (yellow)
Map of the new island (note the original size in dashed outline)
Map of the new island (note the original size in dashed outline)
The eruption that had started in Nov 2013 still continues with no significant changes. During the most recent survey on 18 Oct by the Japanese Coast guard, strombolian activity was observed at the central vent, but lava flows no longer reached the coast of the young island, which is being affected and modified by wave erosion.
According to a bathymetric analysis conducted between June 22 and July 9, the total lava volume erupted so far is approx. 160 million cubic meters, of which 74 million m3 are under sea level.

Previous news

Sat, 8 Aug 2015, 16:56

Nishino-shima volcano (Japan): eruption continues, adds land to the eastern shore

Nishinoshima on 24 July - note the path of the lava tube (line) and the active delta on the eastern coast (lower right)
The volcano on the island continues to erupt lava flows that continue to gradually enlarge the island. Read all
Wed, 24 Jun 2015, 06:00

Nishinoshima volcano (Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 24 June-30 June 2015 (Continuing Activity)

According to NASA's Earth Observatory, a satellite image of Nishinoshima acquired on 21 June showed a sulfur dioxide-and-steam plume rising from the 2.45-square-kilometer island and drifting NE. Hot spots from lava that had emerged from lava tubes were visible on a lava delta at the SE part of the island. ... Read all
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caldera, submarine volcano approx 70 m / 215 ft (currently growing)
Volcano Islands, Japan, 27.27°N / 140.88°E
Current status: minor activity or eruption warning (3 out of 5) Nishino-shima volcano eruptions:
2019-ongoing, 2017, 2013-15, 1985(?), 1982(?), 1980(?), 1978(?), 1975(?), 1973-74
Typical eruption style
explosive
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