Photo of this volcano
  • Japan
  • Japan, Taiwan, Marianas
  • Stratovolcano
  • 1785 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 32.458°N
  • 139.759°E

  • 423 m
    1387 ft

  • 284060
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Aogashima.

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

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

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.

Eruptive History

There is data available for 7 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1780 Jul 27 1785 May (?) Confirmed 3 Historical Observations Maru-yama, SW part of Ikenosawa crater
1670 1680 Confirmed 2 Historical Observations Ikenosawa crater
1652 Unknown Confirmed 3 Historical Observations Ikenosawa crater
0600 BCE ± 200 years Unknown Confirmed 4 Radiocarbon (uncorrected) SE flank (Kintagaura)
1100 BCE ± 300 years Unknown Confirmed   Tephrochronology NNW flank
1200 BCE ± 50 years Unknown Confirmed   Radiocarbon (corrected)
1800 BCE ± 100 years Unknown Confirmed 2 Radiocarbon (corrected) Northwest flank
Deformation History

There is no Deformation History data available for Aogashima.

Emission History

There is no Emissions History data available for Aogashima.

Photo Gallery

The small 2.5 x 3.5 km basaltic island of Aoga-shima, seen here from the SE, is located in the central Izu Islands. Aoga-shima is surrounded by steep cliffs and contains a small 1.7 x 1.5-km-wide caldera. Two pyroclastic cones were formed inside the caldera during the volcano's latest eruption from 1780 to 1785.

Photo by Richard Fiske (Smithsonian Institution).
See title for photo information.
Smithsonian Sample Collections Database

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

Affiliated Sites