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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 10.082°N
  • 40.702°E

  • 2145 m
    7036 ft

  • 221160
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Ayelu.

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

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

Basic Data

Volcano Number

Last Known Eruption



Unknown - Evidence Credible

2145 m / 7036 ft


Volcano Types

Pyroclastic cone(s)

Rock Types


Tectonic Setting

Rift zone
Intermediate crust (15-25 km)


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

Geological Summary

Ayelu is a vegetated rhyolitic stratovolcano, located south of the Asbahri plain in the southern Afar region. On its eastern side, 2145-m-high Ayelu is cut by regional faults and is overlain by ignimbrites erupted from Adwa volcano immediately to the east. It was constructed by a series of thick rhyolitic lava flows, creating a higher and steeper-sided volcano than Adwa. Hot springs are located on the western flank.


The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

CNR-CNRS, 1975. Geological Maps of Afar: 1, Northern Afar (1971); 2, Central and Southern Afar (1975). La Celle St Cloud, France: Geotechnip.

Mohr P A, 1980. (pers. comm.).

Richard J J, Neumann van Padang M, 1957. Africa and the Red Sea. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI 4: 1-118.

Varet J, 1978. Geology of central and southern Afar (Ethiopia and Djibouti Republic). CNRS, Paris, 124 p.

WoldeGabriel G, 1987. (pers. comm.).

Wood C A, 1978. (pers. comm.).

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1928 ] [ Unknown ] Uncertain 2  

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.


Agelu | Aielu | Ajelou | Assalo | Ajel | Ay-alu | Ayalu

Photo Gallery

Ayelu is the westernmost and older of two volcanoes at the southern end of the Danakil depression. The vegetated rhyolitic stratovolcano is cut by prominent regional faults. Hot springs occur at its western flank. Its younger twin volcano, Aabida, has a 4 x 5 km caldera, which originated following eruption of voluminous pyroclastic flows, and a younger 2.5-km-wide caldera. Extensive young basaltic lava flows cover the flanks of Aabida and overlap a sedimentary plain to the SE.

Photo by Giday Wolde-Gabriel (Los Alamos National Laboratory).
A 4 x 5 km wide caldera cuts the summit of Adwa volcano above the center of this NASA Landsat image with north to the top. This prominent volcano (also known as Aabida, Amoissa, or Dabita) is a stratovolcano in the southern Afar area immediately east of Ayelu volcano, which lies above and to the left of the westernmost flank lava flow. These prominent young basaltic lava flows were erupted from vents on the west, east, and south flanks of Adwa volcano and overlap a sedimentary plain to the SE.

NASA Landsat7 image (worldwind.arc.nasa.gov)

Smithsonian Sample Collections Database

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

Affiliated Sites

Large Eruptions of Ayelu 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).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.