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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 0.2°S
  • 36.07°E

  • 2278 m
    7472 ft

  • 222060
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Menengai.

 Available Weekly Reports

There are no Weekly Reports available for Menengai.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
6050 BCE (?) Unknown Confirmed 6 Radiocarbon (uncorrected)
7350 BCE ± 1000 years Unknown Confirmed   Tephrochronology

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. 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. Additional discussion of data sources can be found under Volcano Data Criteria.

Leat P T, 1984. Geological evolution of the trachytic caldera volcano Menengai, Kenya Rift Valley. J Geol Soc London, 141: 1057-1069.

Leat P T, Macdonald R, Smith R L, 1984. Geochemical evolution of the Menengai Caldera volcano, Kenya. J Geophys Res, 89: 8571-8592.

Macdonald R, Navarro J M, Upton B G J, Davies G R, 1994. Strong compositional zonation in peralkaline magma: Menengai, Kenya Rift Valley. J Volc Geotherm Res, 60: 301-325.

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.

Smith M, 1991. . (pers. comm.).

Williams L A J, Macdonald R, Chapman G R, 1984. Late Quaternary caldera volcanoes of the Kenya Rift Valley. J Geophys Res, 89: 8553-8570.

The massive Menengai shield volcano occupies the floor of the East African Rift. Construction of a 30 cu km shield volcano beginning about 200,000 years ago was followed by the eruption of two voluminous ash-flow tuffs, each preceded by major pumice falls. The first took place about 29,000 years ago and produced a large caldera. The second major eruption, producing about 30 cu km of compositionally zoned peralkaline trachytic magma about 8000 years ago, was associated with formation of the present-day 12 x 8 km summit caldera. More than 70 post-caldera lava flows cover the caldera floor, the youngest of which may be only a few hundred years old. No historical eruptions are known from Menengai. Fumarolic activity is restricted to the caldera.