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Japan · Stratovolcano

Hakkōda Mountains

Hakkodasan

Type
Stratovolcano
Elevation
1584m
Last eruption
1550
Hakkōda Mountains
Photo: Mccunicano · CC BY-SA 4.0 · Wikimedia Commons
Type
Stratovolcano
Country
Japan
Region
Northwestern Pacific / Northeast Japan Volcanic Arc
Elevation
1584m
Coordinates
40.659, 140.877
Last eruption
1550
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite

Geological summary

The Hakkodasan complex includes at least 17 stratovolcanoes and lava domes south of Mutsu Bay at the northern end of Honshu.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →

From Wikipedia

The Hakkōda Mountains are an active volcanic complex in south-central Aomori Prefecture, Japan, in Towada-Hachimantai National Park. Often called Mount Hakkōda or simply Hakkōda (八甲田), the mountains are collectively listed as one of the 100 Famous Japanese Mountains. Its highest peak, Mount Ōdake, lies 21.3 kilometers (13.2 mi) southeast of central Aomori and 28 kilometers (17 mi) west of central Towada and has an elevation of 1,585 meters (5,200 ft). The Hakkōda Mountains are a part of the Ōu Mountains which make up part of the Northeastern Japan Arc, a segment of the Pacific Ring of Fire. The volcanic complex consists of fourteen stratovolcanoes and lava domes arranged into two volcanic groups. The Northern Hakkōda Volcanic Group emerges from the rim of an 8-kilometer-wide (5.0 mi) caldera that dates back to the Pleistocene. The Southern Hakkōda Volcanic Group predates the caldera.

Wikipedia · CC BY-SA · Read full article →

Eruption history

7 recordedGlossary

Record summary

Confirmed eruptions
7
Uncertain eruptions
0
Span of confirmed record
2850 BCE – 1550
Largest confirmed eruption
VEI 3 (2250 BCE)
Confirmed eruptions since 1900
0
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
2850 BCE~2650 BCE · 1 eruptions · max VEI 22250 BCE~2050 BCE · 1 eruptions · max VEI 31250 BCE~1050 BCE · 1 eruptions · max VEI 150 BCE~150 · 1 eruptions · max VEI 1350~550 · 1 eruptions · max VEI 11150~1350 · 1 eruptions · max VEI 11350~1550 · 1 eruptions · max VEI 12850 BCE1850 BCE650 BCE3501350

Detailed timeline

  1. 1550 (±100 yrs)VEI 1Geological estimate
    1550 – end unknown
    SW flank of O-dake (Jigoku-numa)
  2. 1340 (±75 yrs)VEI 1Geological estimate
    1340 – end unknown
    SW flank of O-dake (Jigoku-numa)
  3. 450VEI 1Geological estimate
    450 – end unknown
    O-dake
  4. 50 BCEVEI 1Geological estimate
    50 BCE – end unknown
    O-dake
  5. 1150 BCEVEI 1Geological estimate
    1150 BCE – end unknown
    O-dake
  6. 2250 BCEVEI 3Geological estimate
    2250 BCE – end unknown
    O-dake
  7. 2850 BCEVEI 2Geological estimate
    2850 BCE – end unknown
    O-dake

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.