Akagisan

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 36.56°N
  • 139.193°E

  • 1828 m
    5996 ft

  • 283130
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Akagisan.

The Global Volcanism Program has no Weekly Reports available for Akagisan.

The Global Volcanism Program has no Bulletin Reports available for Akagisan.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1938 Jul 16 (in or before) ] [ Unknown ] Uncertain    
[ 1251 May 18 ] [ Unknown ] Uncertain    

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery


The broad low volcano of Akagi at the northern end of the Kanto Plain contains an elliptical, 3 x 4 km summit caldera with post-caldera lava domes arranged along a NW-SE line. Lake Ono, seen here from the SW with the summit of the volcano at the upper right, occupies the NE end of the caldera. Most of the activity of Akagi occurred during the Pleistocene, when a series of large plinian eruptions accompanied growth of a second stratovolcano. Only one somewhat uncertain eruption was recorded in historical time, in 1251 CE.

Photo by Ichio Moriya (Kanazawa University).
See title for photo information.
The lake-filled summit caldera of Akagi volcano is a popular winter skiing and ice-skating destination for residents of Tokyo and surrounding areas. Kurohinoki-yama, across Lake Ono to the NE, is the highest point on the caldera rim of Akagi, 350 m above the lake.

Photo by Lee Siebert, 1965 (Smithsonian Institution).
See title for photo information.

Smithsonian Sample Collections Database


There are no samples for Akagisan in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites