11 articles
Arhab, Harra of
The Harra of Arhab, also known as the Sana'a volcanic field, is a volcanic field in Yemen north of Sana'a that last erupted around 500 CE.
Atakor Volcanic Field
Atakor Volcanic Field, Hoggar (Ahaggar) volcanic province, southern Algeria: the province's largest volcanic field, 2,150 km2, Mount Tahat 2,918 m, Quaternary scoria cones, lava domes, and necks with credible but undated recent eruptions.
Bora-Bericha-Tullu Moye
Bora-Bericha-Tullu Moye (BBTM) is an active silicic volcanic complex of three edifices and nested calderas in the central Main Ethiopian Rift, Ethiopia, last erupting about 1900 CE, with geothermal development and over 27 explosive eruptions in 100,000 years.
Boset
Boset (Boset-Bericha, Boseti) is a twin stratovolcano complex (Gudda and Bericha) in the northern Main Ethiopian Rift, 17 x 20 km, summit 2,447 m, caldera formed after ~120 ka, with Holocene explosive eruptions including the ~600-year-old Boset Pumice.
Butajiri-Silti Field
Butajiri-Silti Field (Ābaya Isate Gemora YeFelek'ebet) is a basaltic monogenetic volcanic field of cinder cones, maars, and lava flows, 80 km long, on the western margin of Ethiopia's Main Ethiopian Rift near Butajira.
Dhamar, Harras of
Harras of Dhamar, a volcanic field in central-western Yemen near Dhamar city (14.57°N, 44.67°E), elevation 3,500 m, extending 80 km east with stratovolcanoes, cones, and a possible unconfirmed 1937 eruption.
Haruj
Haruj (Al Haruj, هروج) is a large intraplate basaltic volcanic field of about 45,000 km2 in central Libya, at the SW margin of the Sirt Basin, with ~150 volcanoes and K-Ar ages of 6-0.4 Ma.
Kyejo
Kyejo (Kieyo, Kiejo) is a 2,176 m trachytic stratovolcano in the Rungwe Volcanic Province, SW Tanzania, NW of Lake Malawi. Its only historical eruption, around 1800 CE from the Sarabwe and Fiteko cones, produced 8 km lava flows that overran villages.
Oku Volcanic Field
Oku Volcanic Field (Oku Volcanic Group), a volcanic field in northwest Cameroon on the Cameroon Volcanic Line; four stratovolcanoes culminating at Mt. Oku (3,011 m), activity 30 to <1 Ma, basanite-to-rhyolite lavas, and the Lake Nyos and Monoun CO2 disaster lakes.
Suswa
Suswa (Mount Suswa) is a Quaternary peralkaline trachyte-phonolite shield volcano in the Kenyan Rift, ~50 km WNW of Nairobi, with nested 8 x 12 km and 5 km calderas, Ol Doinyo Onyoke cone, geothermal activity, and no recorded historical eruption.
Toh, Tarso
Tarso Tôh (Toh, Tarso) is a Pleistocene-to-Holocene basaltic volcanic field in the NW Tibesti Range, Chad, with about 150 scoria cones, two maars, and Begour maar dated at 8300 ± 300 years.