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Alu   »  Summary

Alu

Alu Photo

Country:Ethiopia
Subregion Name:Northeastern Africa
Volcano Number:0201-06=
Volcano Type: Fissure vents
Volcano Status:Holocene
Last Known Eruption: Unknown
Summit Elevation: 429 m 1,407 feet
Latitude: 13.825°N 13°49'30"N
Longitude: 40.508°E 40°30'30"E

The summit region of Alu volcano, lying immediately NW of conical Dalaffilla volcano, is an ellipsoidal volcanic horst, elongated in a NNW-SSE direction, and formed primarily of older basaltic lava flows. Very recent fractures along the axis of the Erta Ale range cut the main volcanic horst of Alu and areas to the SSE. Major fumarolic activity is located on the numerous parallel faults, some of which have uplifts of 100 m. Fissure vents west of the horst have fed silicic lava flows, and voluminous youthful basaltic lava flows to the east extend north as far as Lake Bakili.

Global Volcanism ProgramDepartment of Mineral SciencesNational Museum of Natural HistorySmithsonian Institution

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