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Dalafilla volcan

Updated: 2 mars. 2024 06:49 GMT -
stratovolcano 613 m / 2011 ft
Ethiopie, 13.79°N / 40.55°E
Condition actuelle: normal / en sommeil (1 sur 5)
Last update: 14 déc. 2021

Dalafilla (or Alu-Dalafilla) is a stratovolcano in the Erta Ale range, Ethiopia. It had a major effusive eruption on Nov 4, 2008 - one of the largest effusive eruptions in Africa during historic times.

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Style éruptif tipique: effusive
Eruptions du volcan Dalafilla: Nov-Dec 2008

Derniers séismes proches

No recent earthquakes
HeureMag. / ProfondeurDistance/Lieu

Introduction

Dalaffilla (or Alu-Dalafilla), 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.

Dalafilla Photos




See also: Sentinel hub | Landsat 8 | NASA FIRMS
jeu., 1 janv. 1970, 00:00

Dalaffilla volcan (Erta Ale gamme, Ethiopie), mise à jour d'activité: coulées de lave vaste

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. ... Read all
mer., 19 nov. 2008, 06:00

Alu-Dalafilla volcano (Ethiopia) - Smithsonian / USGS Weekly Volcanic Activity Report for 19 November-25 November 2008 (New Activity / Unrest)

During 19-24 November, the MODIS satellite continued to detect thermal anomalies over the area near Dalaffilla and Alu volcanoes from the eruption that began on 3 November. ... Read all
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