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Dabbahu Volcano

Dabbahu

Stratovolcano · Ethiopia · 1401m

The slopes of Dabbahu volcano in the background are part of a large volcanic massif consisting of obsidian flows, lava domes, cones, and basaltic lava flows constructed on a shield volcano. This view from the N with people for scale shows Da'Ure, a 500-m-long fissure vent formed during the first historical eruption in September 2005. A small dome was formed during the eruption. The central part of the volcano lies farther to the right off the margin of the photo.
The slopes of Dabbahu volcano in the background are part of a large volcanic massif consisting of obsidian flows, lava domes, cones, and basaltic lava flows constructed on a shield volcano. This view from the N with people for scale shows Da'Ure, a 500-m-long fissure vent formed during the first historical eruption in September 2005. A small dome was formed during the eruption. The central part of the volcano lies farther to the right off the margin of the photo. · Photo: Photo by Anthony Philpotts, 2005 (University of Connecticut). · Wikimedia Commons
Type
Stratovolcano
Country
Ethiopia
Region
Eastern Africa Volcanic Regions / Afar Rift Volcanic Province
Elevation
1401m
Coordinates
12.595, 40.480
Last eruption
2005
Tectonic setting
Rift zone / Intermediate crust (15-25 km)
Landform
Composite
Major rock type
Basalt / Picro-Basalt
Geological summary

Dabbahu (also known as Boina, Boyna, or Moina) is a Pleistocene-to-Holocene volcanic massif forming an axial range of the Afar depression SSW of the Alayta massif. Late-stage pantelleritic obsidian flows, lava domes, and pumice cones form the summit and upper flanks. The volcano rises above the Teru Plain and was built over a volumetrically dominant base of basaltic-to-trachyandesitic lava flows of a shield volcano. Late-stage basaltic fissure eruptions also occurred at the NW base of the volcano. Abundant fumaroles are located along the crest of the volcano and extend NE towards Alayta. The first historical eruption took place from a fissure vent on the NE flank in September 2005, producing ashfall deposits and a small pumice dome. More than 6000 people were evacuated from neighboring villages.

From Wikipedia

Dabbahu Volcano is an active volcano located in the remote Afar Region of Ethiopia. This stratovolcano is part of the Afar Triangle, a highly active volcanic region which includes Erta Ale. An eruption on September 26, 2005 created a large fissure in the ground, known as the Dabbahu fissure.

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Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
5850 BCE~5588 BCE · 1 eruptions · max VEI ?4541 BCE~4279 BCE · 1 eruptions · max VEI ?3493 BCE~3232 BCE · 1 eruptions · max VEI ?1743~2005 · 1 eruptions · max VEI 35850 BCE4017 BCE1923 BCE90 BCE1743

Detailed timeline

  1. 2005VEI 3Observed
    2005-09-26 – 2005-09-29
    NE flank (Da'Ure)
  2. 3450 BCE (±1800 yrs)VEI ?Geological estimate
    BCE 3450 – Ongoing
  3. 4450 BCE (±2700 yrs)VEI ?Geological estimate
    BCE 4450 – Ongoing
    North flank
  4. 5850 BCE (±4300 yrs)VEI ?Geological estimate
    BCE 5850 – Ongoing
    North flank

External links

⚠ For reference only. Not for emergency response.