Etiopia · Vulcano a scudo
Dofan
Dofen
- Tipo
- Vulcano a scudo
- Altitudine
- 1151 m
- Ultima eruzione
- Sconosciuto
- Tipo
- Vulcano a scudo
- Paese
- Etiopia
- Regione
- Africa orientale / Main Ethiopian Rift Volcanic Province
- Altitudine
- 1151 m
- Coordinate
- 9.350, 40.130
- Ultima eruzione
- Sconosciuto
- Contesto tettonico
- Zona di rift / Crosta continentale (> 25 km)
- Forma vulcanica
- A scudo
- Roccia principale
- Riolite
Sintesi geologica
The Dofen shield volcano rises 450 m above the Awash plain in the northern Main Ethiopian Rift. Numerous cinder cones, constructed along a 10-km-long, N-S-trending line, occur on the flanks of the dominantly rhyolitic volcano. The northern cones are younger, have well-preserved morphologies, and display strong fumarolic activity. A major fumarole in a wide S-flank crater has precipitated large amounts of sulfur. The latest eruptions occurred during the Holocene (WoldeGabriel 1987, pers. comm.), and it is known as the "smoking mountain".
Sintesi da Wikipedia
Riassunto in ingleseDofan or Dofen is a 1,151 m (3,776 ft) high rhyolitic shield volcano in Ethiopia's Awash National Park. The volcano rises 450 m (1,480 ft) above the valley floor. A north–south zone of cinder cones extending 10 km (6.2 mi); the cones in the north show intense fumarolic activity. Along the southern flank crater, a fumarole produced significant sulfur. The volcano's last eruptions were during the Holocene. On 2 January 2025, smoke emitted from the volcano, prompting tens of thousands of residents living in the area to evacuate. The Ethiopian Geological Institute reported steam and debris expelled from the volcano. However, the Ethiopian Disaster Risk Management Commission did not confirm the eruption. The activity comes amid an earthquake swarm that lasted several weeks.
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