Bora Ale

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 13.725°N
  • 40.6°E

  • 668 m
    2191 ft

  • 221071
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Bora Ale.

The Global Volcanism Program has no Weekly Reports available for Bora Ale.

The Global Volcanism Program has no Bulletin Reports available for Bora Ale.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
221071

Unknown - Evidence Credible

668 m / 2191 ft

13.725°N
40.6°E

Volcano Types

Stratovolcano
Caldera

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite
Trachyte / Trachyandesite
Rhyolite

Tectonic Setting

Rift zone
Intermediate crust (15-25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
11,328
339,803

Geological Summary

Bora Ale is a complex volcano located near the center of the Erta Ale Range. The earliest activity formed submarine lava flows partially covered by Quaternary reef deposits. An embryonic shield volcano is located on the SW side of the complex and is cut by curvilinear faults; youthful chains of spatter cones follow this same curvilinear pattern and form concentric semi-circles. The 668-m-high summit is located on the NE side of the massif and consists of a silicic stratovolcano that is the largest of the Erte Ale Range. It has produced steep-sided viscous lava flows that have traveled up to 5 km from the volcano. Strong fumarolic activity occurs within a 300-m-wide summit crater. Regional faulting has fed very recent basaltic lava flows from a NNW-trending fissure that cuts the stratovolcano.

References

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

Barberi F, Varet J, 1970. The Erta Ale volcanic range (Danakill depression, Northern Afar, Ethiopia). Bull Volc, 34: 848-917.

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

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Katsui Y (ed), 1971. List of the World Active Volcanoes. Volc Soc Japan draft ms, (limited circulation), 160 p.

Pagli C, Wright T J, Ebinger C J, Yun S-H, Cann J R, Barnie T, Ayele A, 2012. Shallow axial magma chamber at the slow-spreading Erta Ale Ridge. Nature Geoscience 5, 284–288. http://dx.doi.org/10.1038/ngeo1414

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

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

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.


Synonyms

Borele-ali | Bor-eli

Photo Gallery


The summit of Borale Ale (upper left) consists of a silicic stratovolcano that is the largest of the Erte Ale Range. Spatter cones aligned along regional fissures can be seen in the foreground, and a fumarolically altered lava dome forms the light-colored cone above the fissures. Strong fumarolic activity occurs within a 300-m-wide crater on the 668-m-high summit of the volcano. Regional faulting has fed very recent basaltic lava flows from a NNW-trending fissure that cuts the stratovolcano.

Copyrighted photo by Marco Fulle, 2002 (Stromboli On-Line, http://stromboli.net).

Smithsonian Sample Collections Database


A listing of samples from the Smithsonian collections will be available soon.

Affiliated Sites

Large Eruptions of Bora Ale 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.