Mount Unzen
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.
| Mount Unzen | |
|---|---|
Mt. Unzen, showing extensive pyroclastic flow and lahar deposits | |
| Highest point | |
| Elevation | 1,486 m (4,875 ft) |
| Coordinates | 32°45′41″N 130°17′55″E |
| Geography | |
Mount Unzen Unzen, Nagasaki, Kyushu, Japan | |
| Geology | |
| Age of rock | Oldest 500 kyr |
| Mountain type | Complex stratovolcano |
| Last eruption | February to May 1996 |
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).
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