Dubbi volcano in Eritrea is a large volcanic massif rising 1625 m above the the western shore of the Red Sea. It is located in the Afar triangle south of the crystalline basement rocks in the Danakil Alps east of the Danakil depression and east of the Erta Ale range.
The two most-recent eruptive centers are fissure systems that extend NW-SE and NNE-SSW. The former produced lava flows that reached the Red Sea in 1400 AD. The second created 19 small craters at the summit in 1861. Ash fell more than 300 km from the volcano. Two villages were destroyed and more than 100 persons were killed during Africa's largest eruption in historical time. Lava flows from the 1861 eruption traveled as far as 22 km and reached the coast.
An eruption on 12 June 2011 from neighboring Nabro was originally believed to be from Dubbi.
There are about 20 cinder cones at the summit and large basalt lava flows to the north and NE of the volcano, forming the Edd lav a field, which covers 2700 sq km and stretches to the coast of the Red Sea.
Dubbi volcano is part of a volcanic alignment that extends SW from the Red Sea spreading axis to the southern tip of the Tat Ali axial volcanic range.