Nyambeni Hills

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 0.23°N
  • 37.87°E

  • 750 m
    2460 ft

  • 222056
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Nyambeni Hills.

The Global Volcanism Program has no Weekly Reports available for Nyambeni Hills.

The Global Volcanism Program has no Bulletin Reports available for Nyambeni Hills.

The broad NE-SW-trending Nyambeni shield volcano is capped by numerous phonolitic cumulodomes and basaltic cones and lava flows of late-Pleistocene to Holocene age (Hackman et al., 1989). The basaltic cinder cones are the youngest features of Nyambeni Hills volcano. They are clustered in a NE-trending belt along the crest of the shield, in a N-S-trending area including the Mula Hills, and in the Giaki area.

The Global Volcanism Program is not aware of any Holocene eruptions from Nyambeni Hills. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Nyambeni Hills 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.


Cones

Feature Name Feature Type Elevation Latitude Longitude
Ciothirai Cone
Karama Cone
Kibithewa Pyroclastic cone
Kiraro Cone
Kirima-Itune Cone
Kithetu Hill Pyroclastic cone
Kuani Hill Cone
Maitei Cone
Milu Tatu Cone
Ndonyu Yuki Hill Pyroclastic cone
Sabu, Ol Doinyo Cone

Craters

Feature Name Feature Type Elevation Latitude Longitude
Nkunga, Lake Crater

Domes

Feature Name Feature Type Elevation Latitude Longitude
Lubwa Dome
Mukuani Hill Dome
Ndobwa Dome
Njogoine Dome
Romani Hill Dome
The broad NE-SW-trending Nyambeni Hills shield volcano cuts diagonally across this NASA Landsat image from the center to the upper right. The massive shield lies NE of the eroded Pleistocene Mount Kenya volcano (lower left) and is capped by numerous phonolitic lava domes and basaltic cones and lava flows. The basaltic cinder cones are the youngest features of Nyambeni Hills volcano and are clustered in a NE-trending belt along the crest of the shield and in N-S-trending areas on its flanks.

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.

Hackman B D, Charsley T J, Kagasi J, Key R M, Siambi W S, Wilkinson A F, 1989. Geology of the Isiolo area. Rpt Mines Geol Dept Kenya, 103: 1-88.

Williams L A J, 1970. The volcanics of the Gregory Rift Valley, East Africa. Bull Volc, 34: 439-465.

Volcano Types

Shield
Pyroclastic cone(s)
Lava dome(s)

Tectonic Setting

Rift zone
Continental crust (> 25 km)

Rock Types

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

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
13,389
107,199
768,936
2,781,323

Affiliated Databases

Large Eruptions of Nyambeni Hills 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.