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Mount E

Esan

Lava dome · Japan · 618m

Esan volcano has lava dome at the eastern tip of the Oshima Peninsula. This is Hokkaido's southernmost active volcano and a minor phreatic eruption in 1846 produced a lahar that caused many fatalities. Active fumaroles are at a thermal area on the upper NW flank.
Esan volcano has lava dome at the eastern tip of the Oshima Peninsula. This is Hokkaido's southernmost active volcano and a minor phreatic eruption in 1846 produced a lahar that caused many fatalities. Active fumaroles are at a thermal area on the upper NW flank. · Photo: Photo by Ken-ichi Arai, 1996 (Hokkaido University). · Wikimedia Commons
Type
Lava dome
Country
Japan
Region
Northwestern Pacific Volcanic Regions / Northeast Japan Volcanic Arc
Elevation
618m
Coordinates
41.805, 141.166
Last eruption
1874
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Minor (Silicic)
Major rock type
Andesite / Basaltic Andesite
Geological summary

Esan is a small volcanic complex of seven overlapping andesitic-to-dacitic lava domes on the eastern tip of the Oshima Peninsula across the Tsugaru Strait from Honshu. The complex consists of five late Pleistocene and two early Holocene lava domes, Esan and Misaki. A minor phreatic eruption in 1846 produced a mudflow that caused many fatalities. The latest activity was a small eruption in 1874. Active fumaroles occur at a thermal area on the upper NW flank.

From Wikipedia

Mount E is an active stratovolcano of the Kameda peninsula, which is itself part of the larger Oshima Peninsula. It is in the rural, eastern region of Hakodate, Hokkaido, Japan. Mount E is part of Esan Prefectural Natural Park.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
6670 BCE~6385 BCE · 1 eruptions · max VEI 35816 BCE~5531 BCE · 1 eruptions · max VEI 04107 BCE~3822 BCE · 1 eruptions · max VEI ?1259 BCE~974 BCE · 1 eruptions · max VEI ?689 BCE~404 BCE · 1 eruptions · max VEI ?1304~1589 · 1 eruptions · max VEI ?1589~1874 · 2 eruptions · max VEI 16670 BCE4676 BCE2398 BCE404 BCE1589

Detailed timeline

  1. 1874VEI 1Observed
    1874-06-08 – Ongoing
  2. 1846VEI 1Observed
    1846-11-18 – Ongoing
  3. 1350VEI ?Geological estimate
    1350 – Ongoing
    NW E-san
  4. 440 BCE (±46 yrs)VEI ?Geological estimate
    BCE 440 – Ongoing
  5. 1050 BCEVEI ?Geological estimate
    BCE 1050 – Ongoing
    NW E-san
  6. 3900 BCE (±100 yrs)VEI ?Geological estimate
    BCE 3900 – Ongoing
    NW E-san
  7. 5770 BCE (±924 yrs)VEI 0Geological estimate
    BCE 5770 – Ongoing
    East flank (Misaka lava dome)
  8. 6670 BCE (±27 yrs)VEI 3Geological estimate
    BCE 6670 – Ongoing
    Esan lava dome

External links

⚠ For reference only. Not for emergency response.