- Info & Contacts
The Global Volcanism Program has no activity reports for Boset-Bericha.
The Global Volcanism Program has no Weekly Reports available for Boset-Bericha.
The Global Volcanism Program has no Bulletin Reports available for Boset-Bericha.
Boset (Boseti-Gudda) and Bericha (Boseti-Bericcia) are composite dominantly rhyolitic-to-trachytic volcanoes rising 1000 m and 800 m, respectively, above the floor of the Ethiopian Rift valley. Initial basaltic-to-trachytic activity at Boset (also known as Gudda) was followed by rhyolitic effusive and explosive eruptions that resulted in caldera formation. A remnant of the caldera rim is found on the NW flank of Boset. Elsewhere post-caldera activity has produced very recent pantelleritic obsidian fissure-fed lava domes and flows that have buried the caldera wall, and flank eruptions from fissures parallel to the rift have produced voluminous pantelleritic lava flows. Bericha (also known as Bariccia) has produced similar very recent obsidian flows and associated pumice flows. Fissures connecting Boset and Bericha have erupted youthful, prehistorical basaltic lava flows.
The Global Volcanism Program is not aware of any Holocene eruptions from Boset-Bericha. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Boset-Bericha page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.
|Feature Name||Feature Type||Elevation||Latitude||Longitude|
|Stratovolcano||8° 37' 0" N||39° 30' 29" E|
|Stratovolcano||8° 33' 29" N||39° 28' 30" E|
|Two closely spaced volcanic centers, Boset (Boseti-Gudda) and Bericha (Boseti-Bericcia) are composite dominantly rhyolitic-to-trachytic volcanoes rising above the floor of the Ethiopian Rift valley. Boset, the SSW center (also known as Gudda), is below and to the left of the center of this Landsat image, while the NNE center, Bericha, lies just above the center of the image. Fissures connecting Boset and Bericha have erupted youthful, prehistorical basaltic lava flows.
NASA Landsat image, 1999 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).
The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.
Berhe S M, 1978. Geological map of the Nazret area. Ethiopian Mapping Agency, 1:250,000.
Brotzu P, Morbidelli L, Piccirillo E M, Traversa G, 1980. Volcanological and magmatological evidence of the Boseti volcanic complex (Main Eithiopian Rift). In: Geodynamic Evolution of the Afro-Arabian Rift System, Roma: Accademia Nazionale dei Lincei, p 317-365.
Di Paola G M, 1972. The Ethiopian Rift Valley (between 7° 00' and 8° 40' lat north). Bull Volc, 36: 517-560.
United Nations, 1973. Geology, geochemistry and hydrology of hot springs of the East African Rift system within Ethiopia. United Nations Tech Rpt, New York, DP/SF/UN 116: 1-220.
WoldeGabriel G, 1987. . (pers. comm.).