Niigata-Yakeyama（新潟焼山, Niigatayakeyama）
| Elevation | 2400 m |
|---|---|
| Classification | 300 Famous Mountains of Japan |
| Location | Niigata Pref. (新潟県 糸魚川市) |
| Coordinates | 36.92083, 138.03583 |
Highlights of Niigata-Yakeyama
- Selected as one of the 300 Famous Mountains of Japan
- Elevation 2400 m
- Located in Niigata Pref.
Weekly weather (reference)
About Niigata-Yakeyama
Niigata-Yake-Yama (新潟焼山, Niigata Yakeyama) is an active volcano in Honshu, Japan. A large eruption in 887 AD sent pyroclastic flows to the Japan Sea.
Morphology
The volcano takes the form of a lava dome that was built above a ridge of a Tertiary mountain range near the Japanese coast. The volcano is one of the youngest in Japan, with an estimated age of approximately 3100 years. The top of the lava dome is cut by fissures where mild phreatic eruptions have taken place in recent historical times.
Historical eruptions
Three major magmatic eruptions have taken place in historical time, in 887 AD, 1361 and 1773, these eruptions are VEI 3–4 in range and have produced lava and pyroclastic flows that have reached the coast. The eruption of 1361 is responsible for the current summit lava dome. Since 1773, all eruptions have been phreatic and have come from fissures and craters at the summit and sides of the dome.
1974 eruption
The first eruption in 25 years occurred on 28 July 1974. This eruption was phreatic. The eruption came from fissures 200 m on the side of the summit lava dome, producing widespread ashfall. Ash fell on cities around the area. Three students on the volcano...