Wau-en-Namus

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 25.05°N
  • 17.55°E

  • 547 m
    1794 ft

  • 225008
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Wau-en-Namus.

The Global Volcanism Program has no Weekly Reports available for Wau-en-Namus.

The Global Volcanism Program has no Bulletin Reports available for Wau-en-Namus.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
225008

Unknown - Evidence Uncertain

547 m / 1794 ft

25.05°N
17.55°E

Volcano Types

Caldera
Pyroclastic cone(s)
Explosion crater(s)

Rock Types

Major
Basalt / Picro-Basalt

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
48
48
48
433

Geological Summary

The isolated Wau-en-Namus volcanic field (also spelled Waw an Namous or Uaw en Namus) lies in the Sahara desert of south-central Libya, south of the Haruj volcanic field. A 4-km-wide, 100-m-deep caldera contains a post-caldera scoria cone, Wau-en-Namus. An apron of dark basaltic tephra extends 10-20 km around the caldera in stark contrast to the light-colored desert sand prominent in satellite views. Three small salt lakes of variable color contribute to the name of the volcano, which means "Oasis of Mosquitoes." The youthful appearance of the central cone has suggested it may be as young as a few thousand years, although the arid climate may mask its actual age. Yellow sulfur deposits are found in the 150-m-wide crater. Other basaltic lava flows occur several tens of km NW of the volcano.

References

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

Almond D C, 1974. The composition of basaltic lavas from Bayuda, Sudan and their place in the Cainozoic volcanic history of north-east Africa. Bull Volc, 38: 345-360.

Bardintzeff J-M, Barois P, 2006. (pers. comm.).

Latter J H, 1975. The history and geography of active and dormant volcanoes. A worldwide catalogue and index of active and potentially active volcanoes, with an outline of their eruptions.. Unpublished manuscript, unpaginated.

Pesce A, 1966. Uau en Namus. South-central Libya and northern Chad, Petrol Explor Soc Libya, Annu Field Conf, 8th, p 47-51.

The Global Volcanism Program is not aware of any Holocene eruptions from Wau-en-Namus. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Wau-en-Namus 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

Uau en Namus | Waw an Namous

Photo Gallery


The central cone of the isolated Wau-en-Namus volcanic field lies within a 4-km-wide caldera in the Sahara desert of south-central Libya. Three small salt lakes, one of which is seen at the right margin of the cone in this view from the south, contribute to its name, which means "Oasis of Mosquitoes." The youthful appearance of the central cone has suggested it may be as young as a few thousand years, although the arid climate may mask its actual age.

Photo by Jacques-Marie Bardintzeff, 2006 (Université Paris-Sud).

Smithsonian Sample Collections Database


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

Affiliated Sites

Large Eruptions of Wau-en-Namus 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.