- Info & Contacts
The Global Volcanism Program has no activity reports for Menengai.
The Global Volcanism Program has no Weekly Reports available for Menengai.
The Global Volcanism Program has no Bulletin Reports available for Menengai.
Summary of Holocene 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 ± 500 years||Unknown||Confirmed||Tephrochronology|
The Global Volcanism Program has no synonyms or subfeatures listed for Menengai.
|Farmlands occupy the flanks of Menengai shield volcano on the floor of the East African Rift. A major explosive eruption about 8000 years ago resulted in formation of the 12 x 8 km wide caldera seen in this Landsat image. More than 70 post-caldera lava flows cover the caldera floor, the youngest of which may be only a few hundred years old. Most lava flows were erupted from vents near the center of the caldera and ponded against the caldera walls. The city of Nakuru lies at the bottom of the image, south of the caldera.
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.
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.
|Large Eruptions of Menengai||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.|