Kyejo

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 9.23°S
  • 33.78°E

  • 2175 m
    7134 ft

  • 222170
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Kyejo.

The Global Volcanism Program has no Weekly Reports available for Kyejo.

The Global Volcanism Program has no Bulletin Reports available for Kyejo.

Late-stage activity of the Kyejo (Kieyo) trachytic stratovolcano, NW of Lake Malawi (Lake Nyassa), consisted of the formation of numerous maars and cinder cones. Kyejo stratovolcano, rising to 2175 m, is elongated in a NW-SE direction and has been active since the mid-Pleistocene. Maars, some of which contain lakes, surround the Kyejo area, and young basaltic cinder cones and lava flows cover an extensive area to the south. The latest eruption around 1800 CE took place from two parasitic tephritic cones, Sarabwe and Fiteko, that were constructed along a NW-trending fissure. The eruption produced lava flows that traveled 8 km and overran several villages.

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1800 (?) Unknown Confirmed 2 Historical Observations Sarabwe and Fiteko

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.


Synonyms

Kieyo

Cones

Feature Name Feature Type Elevation Latitude Longitude
Chambagunguru Cone
Chambasegera Cone
Fiteko Cone
Ibungu Hills Cone
Inyenyese Cone
Itete Cone
Kioga Cone
Kitema Cone
Pandere Hill Cone
Sarabwe Cone 2175 m
Sengereti Cone

Craters

Feature Name Feature Type Elevation Latitude Longitude
Chungururu Maar
Ikapo Maar
Iramba Maar
Itamba Maar
Itende Maar
Iwale Crater
Katubui Crater
Kingiri Maar
Kissoba Crater
Massako Maar
Ngaramo Crater

Domes

Feature Name Feature Type Elevation Latitude Longitude
Mandanji Dome
The Kieyo volcanic complex (also spelled Kyejo) is seen from Katete, an eroded volcano located 10- 5 km NNW of Kieyo. Late-stage activity of the Kieyo trachytic stratovolcano, NW of Lake Malawi (Lake Nyassa), consisted of the formation of numerous maars and cinder cones. The latest eruption around 1800 AD took place from two parasitic tephritic cones that were constructed along a NW-trending fissure: Sarabwe and Fiteko. The eruption produced lava flows that overran several villages.

Photo by Karen Fontijn, 2008 (University of Gent).
Sarabwe and Fiteko pyroclastic cones, visible halfway up the flank of the Kieyo volcanic complex (also spelled Kyejo), erupted about 1800 AD, in the latest eruption in this region. The eruption from these cones formed the Sarabwe lava flow (not clear in this picture). The cones are seen from the village of Masebe near its NW foot (5 km from the summit).

Photo by Karen Fontijn, 2008 (University of Gent).

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.

Ebinger C J, Deino A L, Drake R E, Tesha A L, 1989. Chronology of volcanism and rift basin propagation: Rungwe volcanic province, East Africa. J Geophys Res, 94: 15,785-15,803.

Fontijn K, Ernst G G J, Elburg M A, Williamson D, Abdallah E, Kwelwa S, Mbede E, Jacobs P, 2010. Holocene explosive eruptions in the Rungwe Volcanic Province, Tanzania . J Volc Geotherm Res, 196: 91-110.

Harkin D A, 1960. The Rungwe volcanics at the northern end of Lake Nyasa. Geol Surv Tanganyika Mem, 2: 1-172.

Katsui Y (ed), 1971. List of the World Active Volcanoes. Volc Soc Japan draft ms, (limited circulation), 160 p.

Richard J J, Neumann van Padang M, 1957. Africa and the Red Sea. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI 4: 1-118.

Volcano Types

Stratovolcano
Pyroclastic cone(s)
Maar(s)

Tectonic Setting

Rift zone
Continental crust (> 25 km)

Rock Types

Major
Trachyte / Trachyandesite
Trachyandesite / Basaltic trachy-andesite
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
2,259
38,428
378,511
2,263,665

Affiliated Databases

Large Eruptions of Kyejo Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.