Photo of this volcano
  • Ethiopia
  • Africa and Red Sea
  • Caldera
  • Unknown - Evidence Credible
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 8.357°N
  • 39.188°E

  • 1873 m
    6143 ft

  • 221230
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Gedamsa.

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

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

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

The Global Volcanism Program is not aware of any Holocene eruptions from Gedamsa. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Gedamsa page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

Deformation History

There is no Deformation History data available for Gedamsa.

Emission History

There is no Emissions History data available for Gedamsa.

Photo Gallery

Gedamsa caldera is located along the Main Ethiopian Rift east of Lake Koka (left) and SW of the Wonji Sugar Estate Farm (upper right). The 7 x 9 km wide caldera (also spelled Gadamsa or Gedemsa) is cut by many NNE-SSW-trending regional faults of the Ethiopian Rift. A chain of rhyolitic lava flows and a large 1-km-wide crater occupies the caldera floor. A young lava dome and flow is found on the SW flank of the volcano (lower left).

NASA Landsat image, 1999 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).
See title for photo information.
Smithsonian Sample Collections Database

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

Affiliated Sites