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Akita-Yakeyama

Stratovulcano · Japan · 1366 m

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. · Foto: 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
Tipo
Stratovulcano
Paese
Japan
Regione
Northwestern Pacific Volcanic Regions / Northeast Japan Volcanic Arc
Altitudine
1366 m
Coordinate
39.964, 140.757
Ultima eruzione
1997
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

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.

Sintesi da Wikipedia

Riassunto in inglese

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.

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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
3050 BCE~2856 BCE · 1 eruzioni · VEI max. ?1303 BCE~1109 BCE · 1 eruzioni · VEI max. ?444~638 · 1 eruzioni · VEI max. ?638~832 · 1 eruzioni · VEI max. ?1221~1415 · 1 eruzioni · VEI max. ?1609~1803 · 1 eruzioni · VEI max. 21803~1997 · 11 eruzioni · VEI max. 23050 BCE1885 BCE526 BCE6381803

Cronologia dettagliata

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

Link esterni

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