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Nishino-Shima volcano (Izu Islands, Japan): ash plumes from explosive activity

Вс, 26 янв 2014, 11:52
11:52 AM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: T
The former new island off Nishino-Shima seen on 20 Jan 2014(Japan Coast guard)
The former new island off Nishino-Shima seen on 20 Jan 2014(Japan Coast guard)
Map showing the evolution of the new island between 21 Nov (shortly after its birth), 26 Dec (touching the main island) and 20 Jan 2014
Map showing the evolution of the new island between 21 Nov (shortly after its birth), 26 Dec (touching the main island) and 20 Jan 2014
The 2 active vents of Niishima (the left one showing spattering of liquid lava) and an active flow
The 2 active vents of Niishima (the left one showing spattering of liquid lava) and an active flow
Вулкан продолжает расширять остров с потоками лавы, но кажется все более взрывной активности также. Шлейфы пепла на высотах 4000 футов (1,2 км) сообщалось в последние дни. Они могли происходить от более насильственный характер взаимодействия вода Магма (phreatomagmatic активность) или просто сильнее Стромболианская взрывы.
Как показывает недавние снимки по японской береговой охраны, новые потоки лавы продолжает изливать на низком уровне и постепенно увеличивать размер что начал как новый остров, теперь объединились и превысили размер пожилых Nishino-Shima острове. На новой земле 2 отверстия остаются активными, один из которых был наблюдаемых производить мягкой Стромболианская взрывы и spattering жидкой лавы.

Предыдущие новости

Wed, 22 Jan 2014, 06:00

Nishinoshima volcano (Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 22 January-28 January 2014 (Continuing Activity)

A photo and video posted by the Japan Coast Guard showed that on 20 January the Niijima portion of Nishino-shima was larger than the original island; the two islands had merged on 24 December 2013. White and brown plumes rose from Niijima and the water to the SW was discolored. ... Read all
Wed, 15 Jan 2014, 15:01

Nishino-shima volcano (Volcano Islands, Japan) activity update

The new part of Nishino-Shima island with its eruptive vents and the still active lava flows towards the bay on the eastern shore
The Japanese Coast Guard made an overflight yesterday and published the attached picture of the (former new) island. It seems that while it is still might be effusing some lava that form flows reaching the eastern shore in the bay near the vents, the rate of lava effusion/growth has slowed down. No large changes of the island appear visible when compared to the images a week ago. ... Read all
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Nishino-shima вулкан
caldera, submarine volcano approx 70 m / 215 ft (currently growing)
Volcano Islands, Japan, 27.27°N / 140.88°E
Текущее состояние: беспокойный (2 из 5) Nishino-shima Вулкан-извержения:
2019-ongoing, 2017, 2013-15, 1985(?), 1982(?), 1980(?), 1978(?), 1975(?), 1973-74
Типичный извержения стиль
explosive
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