Asavyo

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 13.07°N
  • 41.6°E

  • 1200 m
    3936 ft

  • 221104
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Asavyo.

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

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

Asavyo is the SW-most of three large silicic stratovolcanoes constructed along a NE-SW-trending line in the Danakil horst. A large 12-km-wide caldera truncates the summit of the volcano. Basaltic lava flows blanket the flanks of Asavyo, which merge into the Mogorros plains to the south. Although the age of the volcano is not known precisely, Asavyo was considered to have erupted during last 2000 years (International Association of Volcanology and Chemistry of the Earth's Interior 1973). A large post-caldera cone was constructed near the center of the caldera, and smaller pyroclastic cones occur within the caldera and on its flanks.

The Global Volcanism Program is not aware of any Holocene eruptions from Asavyo. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Asavyo 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
Asavio
Asavyo volcano, near the center of this NASA Landsat image, is the SW-most of three large silicic stratovolcanoes of uncertain age constructed along a NE-SW-trending line in the Danakil horst. Basaltic lava flows blanket the flanks of Asavyo, which merge into the Mogorros plains to the south. The caldera at the bottom right-center is Oyma volcano, Mallahle volcano lies beneath the clouds at the top center, and Sorkale volcano occupies the circular dark-colored area at the upper right.

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.

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

Mohr P A, Wood C A, 1976. Volcano Spacings and Lithospheric Attenuation in the Eastern Rift of Africa. Earth Planet Sci Lett, 33: 126-144.

Volcano Types

Shield
Caldera
Pyroclastic cone(s)

Tectonic Setting

Rift zone
Intermediate crust (15-25 km)

Rock Types

Major
Basalt / Picro-Basalt
Rhyolite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
84
479
7,697
47,836

Affiliated Databases

Large Eruptions of Asavyo 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.