Alutu

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 7.77°N
  • 38.78°E

  • 2335 m
    7659 ft

  • 221270
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Alutu.

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

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

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.

Eruptive History


There is data available for 1 Holocene eruptive periods.


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0050 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected)

Deformation History


There is data available for 4 deformation periods. Expand each entry for additional details.


Deformation during 2009 Jan 14 - 2010 Jul 28 [subsidence; Observed by InSAR]

Start Date: 2009 Jan 14 Stop Date: 2010 Jul 28 Direction: subsidence Method: InSAR
Magnitude: 4.000 cm Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Remarks: Alternating pulses of uplift and subsidence may suggest interaction between the magmatic and hydrothermal systems at Alutu.

Alutu deflation 2, 14 January 2009 to 28 July 2010. Each fringe represents 2.8 cm of deformation.

From: Biggs et al. 2011.


Reference List: Biggs et al. 2011.

Full References:

Biggs, J., I. D. Bastow, D. Keir, and E. Lewi, 2011. Pulses of deformation reveal frequently recurring shallow magmatic activity beneath the Main Ethiopian Rift. Geochem., Geophys. and Geosys., 12, Q0AB10, doi:10.1029/2011GC003662.

Deformation during 2008 May 14 - 2008 Dec 01 [uplift; Observed by InSAR]

Start Date: 2008 May 14 Stop Date: 2008 Dec 01 Direction: uplift Method: InSAR
Magnitude: 10.000 cm Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Remarks: Alternating pulses of uplift and subsidence may suggest interaction between the magmatic and hydrothermal systems at Alutu.

Alutu inflation 2, 14 May 2008 to 1 December 2008. Each fringe represents 2.8 cm of deformation.

From: Biggs et al. 2011.


Reference List: Biggs et al. 2011.

Full References:

Biggs, J., I. D. Bastow, D. Keir, and E. Lewi, 2011. Pulses of deformation reveal frequently recurring shallow magmatic activity beneath the Main Ethiopian Rift. Geochem., Geophys. and Geosys., 12, Q0AB10, doi:10.1029/2011GC003662.

Deformation during 2004 Sep 22 - 2008 Mar 05 [subsidence; Observed by InSAR]

Start Date: 2004 Sep 22 Stop Date: 2008 Mar 05 Direction: subsidence Method: InSAR
Magnitude: 5.000 cm Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Remarks: Alternating pulses of uplift and subsidence may suggest interaction between the magmatic and hydrothermal systems at Alutu.

Alutu deflation 1, 22 September 2004 to 5 March 2008. Each fringe represents 2.8 cm of deformation.

From: Biggs et al. 2011.


Reference List: Biggs et al. 2011.

Full References:

Biggs, J., I. D. Bastow, D. Keir, and E. Lewi, 2011. Pulses of deformation reveal frequently recurring shallow magmatic activity beneath the Main Ethiopian Rift. Geochem., Geophys. and Geosys., 12, Q0AB10, doi:10.1029/2011GC003662.

Deformation during 2003 Dec 17 - 2004 Sep 18 [uplift; Observed by InSAR]

Start Date: 2003 Dec 17 Stop Date: 2004 Sep 18 Direction: uplift Method: InSAR
Magnitude: 15.000 cm Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Remarks: Alternating pulses of uplift and subsidence may suggest interaction between the magmatic and hydrothermal systems at Alutu.

Alutu inflation 1, 17 December 2003 to 18 August 2004. Each fringe represents 2.8 cm of deformation.

From: Biggs et al. 2011.


Reference List: Biggs et al. 2011.

Full References:

Biggs, J., I. D. Bastow, D. Keir, and E. Lewi, 2011. Pulses of deformation reveal frequently recurring shallow magmatic activity beneath the Main Ethiopian Rift. Geochem., Geophys. and Geosys., 12, Q0AB10, doi:10.1029/2011GC003662.

Emission History


There is no Emissions History data available for Alutu.

Photo Gallery


Alutu volcano lies between light-brown Lake Mirrga (Lake Langano) on the south and greenish Lake Zway on the north. The volcano displays several craters aligned along NNE-SSW and E-W fissures. Dark-colored obsidian lava flows erupted from craters along the fissures have descended the flanks in all directions. Although the age of the most recent eruption of Alutu is not known, its eruptive products overlie recent basaltic lava flows to the west, and strong fumarolic activity continues.

NASA Space Shuttle image ISS001-363-7, 2001 (http://eol.jsc.nasa.gov/).
See title for photo information.
A large area of Holocene-to-prehistorical cinder cones and lava flows lies immediately east and south of Zway Lake (bottom) and forms islands along its eastern shore in this NASA Landsat mosaic (with north to the top). Faulting along the East Zway segment of the Wonji Fault Belt is seen cutting horizontally across the bottom of the image. The dark-colored Alutu volcanic complex lies the lower left. The 15 x 30 km wide Zway (also spelled Zwai, Zeway, or Ziway) lake occupies the central Ethiopian Rift.

NASA Landsat7 image (worldwind.arc.nasa.gov)
See title for photo information.

Smithsonian Sample Collections Database


The following 1 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 111525 Welded-Pantelleritic Tuff -- --

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