Tullu Moje

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 8.158°N
  • 39.13°E

  • 2349 m
    7705 ft

  • 221250
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Tullu Moje.

The Global Volcanism Program has no Weekly Reports available for Tullu Moje.

The Global Volcanism Program has no Bulletin Reports available for Tullu Moje.

Volcano Types

Pyroclastic cone
Fissure vent(s)

Tectonic Setting

Rift zone
Continental crust (> 25 km)

Rock Types

Trachyte / Trachyandesite
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite


Within 5 km
Within 10 km
Within 30 km
Within 100 km

Geological Summary

Tullu Moje is a youthful trachytic-to-rhyolitic pumice cone with a 700-m-wide summit crater, located in the middle of one of the most active parts of the Ethiopian Rift Valley. A large silicic lava flow at Giano was erupted about two centuries ago from a regional fissure. Flank fissures have produced silicic lava flows as recently as about 1900 CE. The same fissures have also erupted prehistorical basaltic lava flows.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1900 (?) Unknown Confirmed   Historical Observations Wonji fault belt, SE of Lake Koka
1775 ± 25 years Unknown Confirmed   Anthropology Giano

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.


Tulu Moje | Moye


Feature Name Feature Type Elevation Latitude Longitude
Giano Dome 8° 14' 0" N 39° 9' 0" E

Photo Gallery

The small crater at the bottom-center of this Landsat image is Tullu Moje, a youthful trachytic-to-rhyolitic pumice cone with a 700-m-wide summit crater. The northern base of the cone is blanketed by a very youthful obsidian lava flow. Two other obsidian flows are prominent 5 km to the north. The most recent of these silicic lava flows were erupted as recently as about 1900 AD. The same fissure system has also erupted prehistorical basaltic lava flows. The SE tip of Lake Koka lies at the upper left. The Bora-Bericcio complex is at the upper left.

NASA Landsat image, 1999 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).


The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Bizouard H, Di Paola G M, 1978. Minerology of the Tullu Mose active volcano area (Arussi: Ethiopian Rift Valley). In: Neuman E-R and Ramberg I B (eds) {Petrology and Geochemistry of Continental Rifts}, Dordrecht, Holland: D Reidel, p 87-92.

Di Paola G M, 1972. The Ethiopian Rift Valley (between 7° 00' and 8° 40' lat north). Bull Volc, 36: 517-560.

Gouin P, 1979. Earthquake history of Ethiopia and the Horn of Africa. Internatl Devel Res Centre (Canada), 118E: 259.

Affiliated Databases

Large Eruptions of Tullu Moje Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.