Erta Ale: Difference between revisions
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'''Erta Ale''' is a continuously active [[basaltic]] [[shield volcano]] in the [[Afar Region]] of northeastern [[Ethiopia]], the most active [[volcano]] in Ethiopia. It is in the [[Afar Depression]], a [[badland]]ish [[desert]] area spanning the border with [[Eritrea]], and the volcano itself is surrounded completely by an area below sea level, making it a relatively low-elevation volcano. |
'''Erta Ale''' is a continuously active [[basaltic]] [[shield volcano]] in the [[Afar Region]] of northeastern [[Ethiopia]], the most active [[volcano]] in Ethiopia. It is in the [[Afar Depression]], a [[badland]]ish [[desert]] area spanning the border with [[Eritrea]], and the volcano itself is surrounded completely by an area below sea level, making it a relatively low-elevation volcano. |
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Erta Ale is {{convert|613|m|ft|0}} high, with one or sometimes two active [[lava lakes]] at the summit which occasionally overflow on the south side of the volcano.<ref name=vw/> It is notable for being the longest-existing lava lake, present since the early years of the twentieth century (1906). Volcanoes with lava lakes are very rare: there are only five in the world. |
Erta Ale is {{convert|613|m|ft|0}} high, with one or sometimes two active [[lava lakes]] at the summit which occasionally overflow on the south side of the volcano.<ref name=vw/> It is notable for being the longest-existing lava lake, present since the early years of the twentieth century (1906). Volcanoes with lava lakes are very rare: there are only five in the world. (Source needed) |
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''Erta Ale'' means "smoking mountain" in the local [[Afar language]] and its southernmost pit is known locally as "the gateway to [[hell]]". In 2009 it was mapped by a team from the [[BBC]] using [[3D scanner|three dimensional laser]] techniques.<ref>[http://www.bbc.co.uk/programmes/b00jd5ws Hottest Place On Earth, Episode 2 at bbc.co.uk]</ref> As the lakes have searingly hot temperatures, laser scanning, which can map any [[surface]] at a distance, was used. |
''Erta Ale'' means "smoking mountain" in the local [[Afar language]] and its southernmost pit is known locally as "the gateway to [[hell]]". In 2009 it was mapped by a team from the [[BBC]] using [[3D scanner|three dimensional laser]] techniques.<ref>[http://www.bbc.co.uk/programmes/b00jd5ws Hottest Place On Earth, Episode 2 at bbc.co.uk]</ref> As the lakes have searingly hot temperatures, laser scanning, which can map any [[surface]] at a distance, was used. |
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Revision as of 22:35, 16 October 2010
| Erta Ale | |
|---|---|
 Erta Ale in May 2008 | |
| Highest point | |
| Elevation | 613 m (2,011 ft)[1] |
| Listing | List of volcanoes in Ethiopia |
| Coordinates | 13°36′N 40°40′E / 13.600°N 40.667°E[2] |
| Geography | |
| Location | Afar Depression, Afar Region, Ethiopia |
| Parent range | Erta Ale Range |
| Geology | |
| Mountain type | Shield volcano |
| Last eruption | 2010 (continuing)[2] |
Erta Ale is a continuously active basaltic shield volcano in the Afar Region of northeastern Ethiopia, the most active volcano in Ethiopia. It is in the Afar Depression, a badlandish desert area spanning the border with Eritrea, and the volcano itself is surrounded completely by an area below sea level, making it a relatively low-elevation volcano.
Erta Ale is 613 metres (2,011 ft) high, with one or sometimes two active lava lakes at the summit which occasionally overflow on the south side of the volcano.[1] It is notable for being the longest-existing lava lake, present since the early years of the twentieth century (1906). Volcanoes with lava lakes are very rare: there are only five in the world. (Source needed)
Erta Ale means "smoking mountain" in the local Afar language and its southernmost pit is known locally as "the gateway to hell". In 2009 it was mapped by a team from the BBC using three dimensional laser techniques.[3] As the lakes have searingly hot temperatures, laser scanning, which can map any surface at a distance, was used.
There was a major eruption on 25 September 2005 which killed 250 head of livestock and forced thousands of nearby residents to flee.[4] There was further lava flow in August 2007, forcing the evacuation of hundreds and leaving two missing.[5] An eruption on 4 November 2008 was reported by scientists at Addis Ababa University.[6] Not much is known about Erta Ale as the surrounding terrain is some of the most inhospitable on earth and the native Afar people have a legendary reputation for viciousness towards outsiders; one travel guide recommends hiring "one or maybe two armed guards or police" to visit Erta Ale.[7] However, they welcomed and helped a team from BBC.[8]
The lava lake on Erta Ale was recently shown briefly during the 2010 movie Clash of the Titans during the journey sequence where Perseus travels to the underworld.
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The lava lake in the caldera of Erta Ale. -
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Erta Ale volcano (EA) and Ethiopian Highlands (EH) as seen from space
See also
References
- ^ a b "Erta Ale, Ethiopia". Volcano World. Retrieved 2007-08-08.
{{cite web}}: External link in|work= - ^ a b "Erta Ale". Global Volcanism Program. Smithsonian Institution. Retrieved 2009-02-22.
- ^ Hottest Place On Earth, Episode 2 at bbc.co.uk
- ^ "Focus on Ethiopia, September 2005", UN-OCHA . Retrieved 25 February 2009.
- ^ "Fears after volcano in Ethiopia". BBC News. 2007-08-15. Retrieved 2007-08-15.
- ^ "Volcano erupts in Ertale volcanic area of Afar Region", Ethiopian News Agency website . Retrieved 20 January 2010.
- ^ Philip Briggs, Ethiopia: the Bradt Travel Guide, fifth edition, updated by Brian Blatt (Chalfont St Peter: Bradt Travel Guides, 2009), p. 313
- ^ "Inside the hottest place on Earth" BBC News, 19 March 2009