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Iwo-Tori-shima

Google Earth Placemark
  • Country
  • Subregion Name
  • Volcano Type
  • Last Known Eruption
  • 212 m
    695 ft
  • 27.877°
  • 128.224°
  • Elevation
  •  
  • Latitude
  • Longitude

There are no activity reports for Iwo-Tori-shima.



 Available Weekly Reports


There are no Weekly Reports available for Iwo-Tori-shima.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1968 Jul 18 1968 Jul 18 Confirmed 1 Historical
1967 Nov 25 ± 5 days Unknown Confirmed 1 Historical
1959 Jun 8 1959 Jul Confirmed 2 Historical Iwo-dake
1903 Mar 15 ± 5 days 1903 Aug 26 ± 5 days Confirmed 2 Historical
1868 Feb 1868 Apr Confirmed 1 Historical
1855 Mar 1855 May Confirmed 2 Historical
1829 Dec 1 1829 Dec 16 Confirmed 1 Historical
1796 Oct 1796 Nov Confirmed 2 Historical Iwo-dake
1664 Unknown Confirmed   Historical

The 1 x 2.7 km island of Iwo-Tori-shima (also known as Okinawa-Tori-shima), located north of the largest island of the Ryukyus, Okinawa, is composed of two andesitic volcanoes. Tori-shima (Bird Island) is a common name for offshore islands in Japan. Kusuku lava dome occupies the center of the inner of two sommas on the SE-most volcano. The summit crater of the NW-most volcano, Iwo-dake, contains a small lake, solfataras, and sulfur deposits that were mined in the past. Historical eruptions dating back to 1664 have consisted of mild-to-moderate explosive activity.