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Posts Tagged ‘Mt Sakurajima’

Volcano Eruption Alert: Mt Sakurajima Ejects Large Plume of Ash

Posted by feww on April 1, 2016

Sakurajima ejects  impressive column of ash 5km into the air

The explosive eruption occurred Friday morning producing a large plume of smoke and ash.

Today’s eruption is reportedly the most powerful eruption in recent months.

Sakurajima (Kyushu, Japan)
Ontake crater
31°35′19″N,  130°39′17″E
Summit Elevation: 1,117 m
Minamidake crater
31°34′38″N, 130°39′32″E
Summit Elevation: 1,060 m

Authorities upgraded the volcanic warning to a “Level 3 (Do not approach the volcano)” on February 5.

One of the most active volcanoes in the world, Sakurajima is located in Kagoshima Bay, southern Kyushu, Japan (about 1,100km WSW of Tokyo). The composite volcano has three peaks: Kitadake, Nakadake and Minamidake (southern peak).

Since 1955 the Minamidake crater, has been continually active. The ongoing activity includes strong strombolian to ash explosions at least once and as many as 8 times a day.

Sendai nuclear power station was built about 50km from the volcano, and despite hundreds of recent eruptions, it was restarted on August 11, 2015.

Sakurajima is a post-caldera cone of the Aira caldera, a gigantic caldera in the southern portion of the island of Kyushu. The caldera was formed by a massive VEI 7 eruption (~ 400km³ of ejecta), about 22,000 years ago, “shortly” after the Oruanui eruption of New Zealand’s Taupo Volcano.

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Mount Aso Explodes

Posted by feww on May 18, 2011

Japan’s Largest Active Volcano Erupts

Mount Aso exploded on Tuesday May 17 at 19:09UTC, prompting Japan’s Meteorological Agency (JMA) to raise the volcanic alert level for the volcano to 2.

Officials in Kumamoto Prefecture, home to the volcano, have imposed a 1 km exclusion zone around the 1,060m high Mt Naka, also warning of ejecta hazards, Kyodo news agency reported.

The central cone group of Aso hosts five peaks: Eboshi, Kishima, Naka, Neko, and Taka.

The explosive eruption followed minor activity  at the volcano on Friday and a small eruption on Sunday.

Another small  eruption on Monday resulted in a column of smoke and ash ejected 500m above the summit at about 10:am local time.


Mount Aso’s Naka dake volcano in Aso Kujū National Park, Kumamoto Prefecture, Kyushu, Japan, 17 Aug 2009.  Credit:  Igorberger

Current Volcanic Warnings (Japan, Island of Kyushu)


Asosan’s Mt Naka is at warning level 2:  Do not approach the crater. Mt Kirishima and Mt Sakurajima are currently at warning level 3: Do not approach the volcano  Source: JMA (copyrighted, for educational use only.)

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