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The fourth eruption (Aso 4) was the largest, with volcanic ash covering the entire Kyushu region and even extending to Yamaguchi Prefecture. Mt. Taka, Mt. Naka, Mt. Eboshi, and Mt. Kishima are cones formed following the fourth above-mentioned huge caldera eruption.
Aso caldera (also known as Asosan, the Aso Volcano or Mount Aso, although the later term usually is used related to its currently active vents) is a geographical feature of Kumamoto Prefecture, Japan. It stretches 25 kilometers north to south and 18 kilometers east to west.
35.3 [4] Nu-p 6 Menengai: Great Rift Valley, Kenya: 26.1 35.6 Menengai Tuff 6 Towada Honshū: 46 36 eruption episode N 6 Lake Mashū Hokkaidō: 10 38.3 [4] Nu-r 7 Gorely: Kamchatka 120 39 Southern sea cliffs 7 Kussharo: Hokkaidō: 170 39.3 Kp-1, Kutcharo Shoro Ash 7 Phlegraean Fields: Campanian volcanic arc: 430 - 680 39.9 Campanian Ignimbrite ...
Also known as Millennium Eruption of Changbaishan Eldgjá eruption, Laki system, Iceland: 934–940 AD: 6: Estimated 18 km 3 (4.3 cu mi) of lava [38] Estimated 219 million tons of sulfur dioxide were emitted [39] Ceboruco, Northwest of the Trans-Mexican Volcanic Belt: 930 AD ±200: 6: 11 km 3 (2.6 cu mi) of tephra [2]
1452/1453 mystery eruption in the New Hebrides arc, Vanuatu; the location of this eruption in the South Pacific is uncertain, as it has been identified from distant ice core records; the only pyroclastic flows are found at Kuwae; 36 to 96 km 3 (8.6 to 23.0 cu mi) of tephra; 175,000,000–700,000,000 t (193,000,000–772,000,000 short tons) of ...
In a stunning display of fire and ice, a new video shot on Friday shows hikers walking in the snow-covered ground surrounding an erupting Mount Etna in southern Italy.. Lava can be seen pouring ...
With indices running from 0 to 8, the VEI associated with an eruption is dependent on how much volcanic material is thrown out, to what height, and how long the eruption lasts. The scale is logarithmic from VEI-2 and up; an increase of 1 index indicates an eruption that is 10 times as powerful.
Mount Aso 4 pyroclastic flow and the spread of Aso 4 tephra. The pyroclastic flow reaches almost the whole area of Kyushu, and volcanic ash is deposited over 15 cm in a wide area from Kyushu to southern Hokkaido. There are three VEI-7 volcanoes in Japan. These are the Aira Caldera, Kikai Caldera and Aso Caldera.