1991 Mount Unzen | |
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| Total costs | N/A |
| Deaths | 43 |
Mount Unzen (雲仙岳, Unzen-dake) is an active volcanic group of several overlapping stratovolcanoes, near the city of Shimabara, Nagasaki on the island of Kyushu, Japan's southernmost main island. In 1792, the collapse of one of its several lava domes triggered a megatsunami that killed 14,524 people in Japan's worst volcanic-related disaster. The volcano was most recently active from 1990 to 1995, and a large eruption in 1991 generated a pyroclastic flow that killed 43 people, including three volcanologists. Its highest peaks are Fugen-dake (普賢岳) at 1,359 metres (4,459 ft) and Heisei-shinzan (平成新山) at 1,486 metres (4,875 ft). The latter emerged during the eruptions of the early, eponymous Heisei era (1989–2019).
Source: Wikipedia 1815 Mount Tambora | |
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| Total costs | N/A |
| Deaths | 250100 |
The 1815 eruption of Mount Tambora was the most powerful volcanic eruption in recorded human history, with a Volcanic Explosivity Index (VEI) of 7. The eruption ejected 160–213 cubic kilometres (38–51 cu mi) of material into the atmosphere. It is the most recently known VEI-7 event and the most recent confirmed VEI-7 eruption.Mount Tambora is on the island of Sumbawa in present-day Indonesia, then part of the Dutch East Indies. Although its eruption reached a violent climax on 10 April 1815, increased steaming and small phreatic eruptions occurred during the next six months to three years. The ash from the eruption column dispersed around the world and lowered global temperatures in an event sometimes known as the Year Without a Summer in 1816. This brief period of significant climate change triggered extreme weather and harvest failures in many areas around the world. Several climate forcings coincided and interacted in a systematic manner that has not been observed after any other large volcanic eruption since the early Stone Age.
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