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Akita-Yakeyama

Stratovolcano · Japan · 1366m

Akita-Yakeyama, seen here from the E, is one of several Japanese volcanoes named Yakeyama ("Burning Mountain"). Yakeyama contains a lava dome in its 600-m-wide summit crater and the flat-topped Kuroshimori lava dome is visible to the left. Several thermal areas are located on the lower western flank.
Akita-Yakeyama, seen here from the E, is one of several Japanese volcanoes named Yakeyama ("Burning Mountain"). Yakeyama contains a lava dome in its 600-m-wide summit crater and the flat-topped Kuroshimori lava dome is visible to the left. Several thermal areas are located on the lower western flank. · Photo: Copyrighted photo by Hiroshi Yagi (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/). · Wikimedia Commons
Type
Stratovolcano
Country
Japan
Region
Northwestern Pacific Volcanic Regions / Northeast Japan Volcanic Arc
Elevation
1366m
Coordinates
39.964, 140.757
Last eruption
1997
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic Andesite
Geological summary

One of several Japanese volcanoes named Yakeyama ("Burning Mountain"), Akita-Yakeyama is the most recently active of a group of coalescing edifices in NW Honshu immediately west of Hachimantai volcano. The main volcano, Yakeyama, contains a small lava dome in its 600-m-wide summit crater. Tsugamori to the east is a stratovolcano of roughly the same height and has a 2-km-wide crater breached to the NE. The flat-topped lava dome of Kuroshimori lies 4 km S of Yakedake. One of several thermal areas, the Tamagawa Spa at the western foot has strongly acidic and slightly radioactive water. The last magmatic eruption formed the Onigajo lava dome in the summit crater about 5000 years ago. There have been somewhat uncertain reported 19th-century eruptions and mild phreatic eruptions in the 20th century.

From Wikipedia

Akita-Yake-Yama is a small stratovolcano in Akita Prefecture, Japan, that is known for its radioactive waters. A small parasitic lava dome is located four kilometers from the volcano.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
3050 BCE~2856 BCE · 1 eruptions · max VEI ?1303 BCE~1109 BCE · 1 eruptions · max VEI ?444~638 · 1 eruptions · max VEI ?638~832 · 1 eruptions · max VEI ?1221~1415 · 1 eruptions · max VEI ?1609~1803 · 1 eruptions · max VEI 21803~1997 · 11 eruptions · max VEI 23050 BCE1885 BCE526 BCE6381803

Detailed timeline

  1. 1997VEI 1Observed
    1997-05-11 – 1997-05-11
    NE flank (Sumikawa-Onsen)
  2. 1997VEI 1Observed
    1997-08-16 – 1997-08-16
    Kare-numa
  3. 1957VEI 1Observed
    1957-07-02 – Ongoing
  4. 1951VEI 1Observed
    1951-02-16 – Ongoing
    Kare-numa
  5. 1950VEI 1Observed
    1950-07-02 – Ongoing
    Kare-numa
  6. 1949VEI 1Observed
    1949-08-30 – 1949-09-01
    Kare-numa
  7. 1948VEI 1Observed
    1948 – Ongoing
    Kare-numa
  8. 1929VEI 2Observed
    1929-09 – Ongoing
  9. 1890VEI 2Observed
    1890-09-23 – Ongoing
  10. 1887VEI 2Observed
    1887 – Ongoing
    Karenuma
  11. 1867VEI ?Observed
    1867 – Ongoing
  12. 1678VEI 2Observed
    1678-02-22 – Ongoing
    Karenuma
  13. 1390 (±75 yrs)VEI ?Geological estimate
    1390 – Ongoing
  14. 807VEI ?Geological estimate
    807-11-01 – Ongoing
  15. 570VEI ?Geological estimate
    570 – Ongoing
  16. 1250 BCE (±200 yrs)VEI ?Geological estimate
    BCE 1250 – Ongoing
  17. 3050 BCEVEI ?Geological estimate
    BCE 3050 – Ongoing
    Onigajo lava dome

External links

⚠ For reference only. Not for emergency response.