Hiuchi
 |
 | Please add Japanese script to this article, where needed. (February 2012) |
| Hiuchi | |
|---|---|
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| Highest point | |
| Elevation | 2,356 m (7,730 ft) |
| Geography | |
| Location | Honshu, Japan |
| Geology | |
| Last eruption | July 1544 |
Hiuchi is a stratovolcano in Nikko National Park, Japan, 140 km from Tokyo. The volcano rises above Lake Ozenuma.
Morphology
Hiuchi initially formed around 350,000 years ago. Around 160,000–170,000 years ago, Hiuchi erupted, creating a large pyroclastic flow deposit. At the summit of the volcano lie two lava domes, Akanagure and Mi-ike. Akanagure, the southern dome, produced a series of viscous lava flows that flowed down the southern and western parts of the volcano about 3500 years ago. Mi-ike is responsible for the only recorded activity.
Historic eruptions
1544 eruptions
The only recorded activity was on July 28, 1544. A moderate phreatic eruption at the Mi-ike Lava Dome produced lahars and an associated tephra layer.