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Myokosan

Photo of this volcano
  • Japan
  • Stratovolcano
  • 750 BCE
  •  
  • Country
  • Primary Volcano Type
  • Last Known Eruption
  •  
  • 36.891°N
  • 138.114°E

  • 2454 m
    8051 ft

  • 283100
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Myokosan.

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

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

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 10 confirmed Holocene eruptive periods.

0750 BCE Confirmed Eruption  

Episode 1 | Eruption Episode
0750 BCE - Unknown Evidence from Correlation: Tephrochronology

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity
   - - - -    - - - - Pyroclastic flow

1200 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode
1200 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity
   - - - -    - - - - Pyroclastic flow

2100 BCE ± 500 years Confirmed Eruption  

Episode 1 | Eruption Episode
2100 BCE ± 500 years - Unknown Evidence from Correlation: Tephrochronology

List of 2 Events for Episode 1

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

2750 BCE ± 100 years Confirmed Eruption Max VEI: 4

Episode 1 | Eruption Episode Otagirigawa Ash; OT-a tephra
2750 BCE ± 100 years - Unknown Evidence from Isotopic: 14C (calibrated)

List of 6 Events for Episode 1 at Otagirigawa Ash; OT-a tephra

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Phreatic activity
   - - - -    - - - - Phreatomagmatic
   - - - -    - - - - Pyroclastic flow
   - - - -    - - - - Ash
2750 BCE ± 100 years    - - - - VEI (Explosivity Index)

2900 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode
2900 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 2 Events for Episode 1

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

3450 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode
3450 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Pyroclastic flow

3700 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode
3700 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Pyroclastic flow

4000 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode
4000 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 2 Events for Episode 1

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

4300 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode
4300 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 3 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Ash

4750 BCE ± 300 years Confirmed Eruption Max VEI: 5 (?)

Episode 1 | Eruption Episode Akakura Ash; AK-a tephra
4750 BCE ± 300 years - Unknown Evidence from Isotopic: 14C (calibrated)

List of 6 Events for Episode 1 at Akakura Ash; AK-a tephra

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Phreatic activity
   - - - -    - - - - Pyroclastic flow
   - - - -    - - - - Lava flow Uncertain
   - - - -    - - - - Ash
4750 BCE ± 300 years    - - - - VEI (Explosivity Index)
Deformation History

There is no Deformation History data available for Myokosan.

Emission History

There is no Emissions History data available for Myokosan.

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 Myokosan in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

External Sites