Friday, Nov 21, 2008
The eruption near Dalaffilla and Alu volcanoes on 3 November were reported by night-time satellite images. There was a multi-lobed lava-fieldwith a channel flowing to north-east. The source was a fissure northwest of Dalaffilla. The lava flowded area has a dimension of aproximately 9,3 x 15 km. Thermal anomalies showed that the lava-flow was also active during 12-16 November. [more]
Friday, Nov 07, 2008
As more news come in, the eruption in the Erta Ale range can now almost certainly be attributed to a fissure between Dalaffilla and Alu volcanoes. It could be one of the largest volcanic eruptions known in historic times in Africa. News reports interpreting satellite data suggest that there were enormous lava flows in the early stages of the eruption. ... [more]
Dalaffilla volcanoStratovolcano in the Erta Ale range (Ethiopia) which started a major effusive eruption on Nov 4, 2008 - one of the largest effusive eruptions in Africa during historic times.
Background:Dalaffilla, also called Gabuli, is one of the 6 volcanoes in the Erta Ale range in the northern Danakil desert in Ethiopia: Gada Ale, Alu-Dalaffilla, Borale Ale, Erta Ale, Hayli Gubbi and Ale Bagu.
Dalaffilla is a small conical stratovolcano with steep upper flanks and rises 300 m above surrounding lava fields SE of Alu volcano to 600 m above sea level.
Dalaffilla's shape with steep (up to ca. 35 deg) slopes is unusual for the Erta Ale Range volcanoes, which are mostly shield volcanoes made by basaltic lava flows. Dalafilla's cone is constructed of very viscous silicic flows that extend primarily to the east, while they are blocked to the west by tectonic morphologies. Numerous fissures surrounding the volcano have created lateral lava flows and constructed small cinder cones.
Fumarolic activity occurs in the 100-m-wide summit crater and has weathered surrounding lava flows.
The 2008 eruption started from a fissures on the rift axis between Dalaffilla and Alu volcanoes and produced enormous quantities of lava flows covering an estimated 300 square kilometers after the first days of the eruption. It is the first known eruption at Dalaffilla in historic times and likely to be one of the largest eruptions in the known history of Ethiopia.