Tat Ali

Photo of this volcano
Google Earth icon
  Google Earth Placemark
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 13.284°N
  • 41.063°E

  • 655 m
    2148 ft

  • 221106
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Tat Ali.

The Global Volcanism Program has no Weekly Reports available for Tat Ali.

The Global Volcanism Program has no Bulletin Reports available for Tat Ali.

Tat Ali volcano is the dominant feature of the Tat Ali Range, east of Lake Afrera. The low Holocene shield volcano has an elongated summit depression and has produced a variety of rock types, ranging from basalts to pantellerites. NNW-SSE-trending fissures cutting the volcano have fed basaltic lava flows; those NE of Lake Afrera are of prehistorical age. Late-stage volcanism produced youthful basaltic lava flows on the floor of the summit depression, which is also the site of prominent fumarolic activity.

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

The Global Volcanism Program has no synonyms or subfeatures listed for Tat Ali.

The Tat Ali volcanic massif extends across the right-hand side of this NASA Landsat image, east of Lake Afrera (center). This basaltic-to-pantelleritic shield volcano displays an elongated central depression partially filled by recent basaltic lava flows. The dark-colored flows at the upper right were erupted from fissures at the northern end of the Tat Ali complex. Borawli volcano lies at the right-center, between Tat Ali and Lake Afrera (also known as Lake Giulietti), and the lava flows at the upper left are from the flanks of the Hayli Dubbi complex.

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.

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

CNR-CNRS Afar Team, 1973. Geology of northern Afar (Ethiopia). Rev Geog Phys Geol Dynam, 15: 443-490.

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.

Wiart P, Oppenheimer C, 2005. Large magnitude silicic volcanism in north Afar: the Nabro volcanic range and Ma'alalta volcano. Bull Volc, 67: 99-115.

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

Volcano Types

Shield
Fissure vent(s)

Tectonic Setting

Rift zone
Intermediate crust (15-25 km)

Rock Types

Major
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite
Trachyandesite / Basaltic trachy-andesite
Rhyolite
Trachyte / Trachyandesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
32
44
2,130
100,598

Affiliated Databases

Large Eruptions of Tat Ali 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.