Dabbahu Volcano Explained

Dabbahu Volcano
Elevation M:1442
Elevation Ref:[1]
Listing:List of volcanoes in Ethiopia
Map:Ethiopia
Location:Afar Depression, Afar Region, Ethiopia
Coordinates:12.6°N 40.48°W
Type:Stratovolcano
Last Eruption:September 2005

Dabbahu Volcano (also Boina, Boyna or Moina) is an active volcano located in the remote Afar Region of Ethiopia. This stratovolcano[2] is part of the Afar Triangle (Afar Depression), 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.[3]

2005 eruption

The only eruption of the volcano in recorded history occurred on September 26, 2005. Preceding the eruption, the ground swelled and an earthquake swarm consisting of over 130 events occurred.[2] Earthquakes measured 4.2 on the Richter scale.[4] The eruption began 5 kilometers northeast of the summit. Ash from the eruption darkened the area surrounding the volcano for nearly 3 days.

The eruption formed a 500 m long fissure and a 300NaN0 wide pumice cone at the fissure's southern end. Ash reached as far as the administrative center of Teru, located 400NaN0 southwest of the volcano.

Plate tectonics

The volcano is located along the Somali Plate. Researchers predict that the land along this region, known as the East African Rift, will eventually break away, creating a new island consisting of eastern Ethiopia and Djibouti with a new sea in between.[5] [6] Using seismic data from 2005, a research study predicted that this could occur in about one million years.[7]

Life

Scientists are studying the fissure for extremophiles.[8]

See also

Notes and References

  1. Web site: Dabbahu Volcano. 30 August 2009.
  2. 221113. Dabbahu. 2009-11-04.
  3. News: Inside the Hottest Place on Earth. BBC News. August 30, 2009 . 2009-03-19.
  4. Web site: Quake triggers volcanic eruption in Ethiopia. 30 August 2009.
  5. News: Scientists: New Ocean Forming in Ethiopia. Fox News. August 30, 2009 . 2005-12-10.
  6. Web site: Geologists have ringside seats for an ocean's birth. The Register. 30 August 2009.
  7. Web site: Giant crack in Africa may create a new ocean. NBC News. 8 November 2009.
  8. Web site: The Birth of an Ocean in the Hottest Desert on Earth. 30 August 2009.