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Illustration of the eruption of Mt. Asama. Mount Asama erupted in 1783, causing widespread damage. [14] [15] [16] The three-month-long Plinian eruption that began on 9 May 1783, produced andesitic pumice falls, pyroclastic flows, lava flows, and enlarged the cone. The climactic eruption began on 4 August and lasted for 15 hours, [17] and contained
Mount Asama (浅間山, Asama-yama) is an active complex volcano in central Honshū, the main island of Japan.The volcano is the most active on Honshū. [4] The Japan Meteorological Agency classifies Mount Asama as rank A. [5] It stands 2,568 metres (8,425 ft) above sea level on the border of Gunma and Nagano prefectures. [6]
The 1783 eruption of Mount Asama is said to have caused the Great Tenmei famine. [ 5 ] [ 4 ] Starting in the 1770s, there was a sharp decline in crop yield in Tōhoku , the north-eastern region of Honshū , due to poor and cold weather, so food stocks in rural areas were exhausted.
1783 (Tenmei 3): Mount Asama (浅間山,, Asama-yama) erupted in Shinano province, only 80 miles northwest of Edo, with a loss of life estimated at more than 20,000 (Tenmei eruption). [Today, Asama-yama's location is better described as on the border between Gunma Prefecture and Nagano Prefecture].
Mt. Asama's most destructive eruption in recent recorded history took place in 1783, when over 1,000 were killed. The volcano is actively monitored by scientists and climbing close to the summit is prohibited. [3] Usui Pass; Highest elevation: 2,568 m (8,425 ft) (Top of Mount Asama) Lowest elevation: 798.7 m (2,620.4 ft)
To compare, Mt. St. Helens' eruption in 1980 was a level 4. Known as a super eruption for its magnitude, the event emptied out enough volcanic material to produce the 30-by-40-mile-wide caldera.
Minoan eruption: 15,000 to 20,000 Mount Samalas: 7 Indonesia: 1257 1257 Samalas eruption: 15,000 Mount Unzen: 2 Japan: 1792 1792 Unzen earthquake and tsunami: 13,000+ (estimated) Mount Vesuvius: 5 Italy: 79 Eruption of Mount Vesuvius in 79 AD: 10,000+ Laki and Grímsvötn: 4 Iceland: 1783 Laki 1783 eruption [1] 10,000 Kelud: 5 Indonesia: 1586 ...
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