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Shiretoko-Iozan

Photo of this volcano
  • Japan
  • Stratovolcano
  • 1936 CE
  •  
  • Country
  • Primary Volcano Type
  • Last Known Eruption
  •  
  • 44.133°N
  • 145.161°E

  • 1562 m
    5125 ft

  • 285090
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Shiretoko-Iozan.

The Global Volcanism Program has no Weekly Reports available for Shiretoko-Iozan.

The Global Volcanism Program has no Bulletin Reports available for Shiretoko-Iozan.

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 6 confirmed Holocene eruptive periods.

1935 Dec - 1936 Oct Confirmed Eruption Max VEI: 1

Episode 1 | Eruption Episode NW flank
1935 Dec - 1936 Oct Evidence from Observations: Reported

List of 3 Events for Episode 1 at NW flank

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity moderate
   - - - -    - - - - Observation Liquid sulfur
1935 Dec    - - - - VEI (Explosivity Index)

1890 Jun 15 Confirmed Eruption Max VEI: 1

Episode 1 | Eruption Episode NW flank
1890 Jun 15 - Unknown Evidence from Observations: Reported

List of 3 Events for Episode 1 at NW flank

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity moderate
   - - - -    - - - - Fumarolic or Solfataric
1890 Jun 15    - - - - VEI (Explosivity Index)

1889 Aug 9 - 1889 Oct 7 ± 7 days Confirmed Eruption Max VEI: 2 (?)

Episode 1 | Eruption Episode NW flank
1889 Aug 9 - 1889 Oct 7 ± 7 days Evidence from Observations: Reported

List of 3 Events for Episode 1 at NW flank

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity moderate
   - - - -    - - - - Observation Liquid sulfur
1889 Aug 9    - - - - VEI (Explosivity Index)

[ 1880 Nov 24 - 1880 Nov 26 ] Uncertain Eruption

Episode 1 | Eruption Episode
1880 Nov 24 - 1880 Nov 26 Evidence from Unknown

List of 1 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity Uncertain

1876 Sep 23 - 1876 Sep 26 Confirmed Eruption Max VEI: 2

Episode 1 | Eruption Episode NW flank
1876 Sep 23 - 1876 Sep 26 Evidence from Observations: Reported

List of 2 Events for Episode 1 at NW flank

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity weak or small
1876 Sep 23    - - - - VEI (Explosivity Index)

1857 - 1858 Confirmed Eruption  

Episode 1 | Eruption Episode
1857 - 1858 Evidence from Observations: Reported

List of 3 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity Uncertain
   - - - -    - - - - Volcanic "smoke"
   - - - -    - - - - Observation Liquid sulfur

0850 ± 500 years Confirmed Eruption  

Episode 1 | Eruption Episode St-1 tephra
0850 ± 500 years - Unknown Evidence from Correlation: Tephrochronology

List of 2 Events for Episode 1 at St-1 tephra

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity
   - - - -    - - - - Ash
Deformation History

There is no Deformation History data available for Shiretoko-Iozan.

Emission History

There is no Emissions History data available for Shiretoko-Iozan.

GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.

Smithsonian Sample Collections Database

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

External Sites