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Nishino-shima volcano (Japan): eruption continues, approaches 2 year anniversary

Sat, 21 Nov 2015, 06:32
06:32 AM | BY: T
Explosion from Nishinoshima's active main vent on 17 Nov (Japan Coast Guard)
Explosion from Nishinoshima's active main vent on 17 Nov (Japan Coast Guard)
The volcano continues to erupt and is approaching its anniversary. It started with the birth of a new island offshore the old Nishino-Shima island on 23 Nov 2013, which by now has joined and completely covered and greatly enlarged the older one.
The latest survey of the Japanese Coast Guard on 17 Nov showed that although lava effusion continues at slow rate, thickening the flow field in the interior of the island, they no longer reach the shores and the island's total surface has decreased a bit due to wave erosion from 2.67 in September to now 2.63 square km.
Strombolian to vulcanian-type explosions occur from the main vent, sometimes strong enough to project bombs of meter size into the sea, i.e. to more than 1 km distance.

Previous news

Wed, 18 Nov 2015, 06:00

Nishinoshima volcano (Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 18 November-24 November 2015 (Continuing Activity)

According to a news article from 22 November, recent footage (from the previous week) of Nishinoshima showed that the eruption was ongoing with explosion from the central crater and lava flows. The new island was 1.9 km E to W, 1.95 km N to S, and 100 m high, based on Coast Guard reports. ... Read all
Wed, 21 Oct 2015, 08:56

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

Strombolian activity at Nishinoshima on 18 Oct 2015 (Japan Coast Guard)
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. 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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