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Photo of this volcano
  • Kenya
  • Africa and Red Sea
  • Pyroclastic cone(s)
  • 1770 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 0.904°S
  • 36.292°E

  • 2434 m
    7986 ft

  • 222090
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Olkaria.

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

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

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.

Eruptive History

There is data available for 3 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1770 ± 50 years Unknown Confirmed   Radiocarbon (uncorrected) Ololbutot
4050 BCE (?) Unknown Confirmed   Tephrochronology
6050 BCE (?) Unknown Confirmed   Tephrochronology NE side (Gorge Farm)
Deformation History

There is no Deformation History data available for Olkaria.

Emission History

There is no Emissions History data available for Olkaria.

Photo Gallery

Volcanic vents of the northern part of the Olkaria volcanic complex are visible immediately south of Lake Naivasha (upper right). The complex comprises up to 80 individual commenditic and other peralkaline rhyolitic centers, many of which are visible in this Landsat image. The youngest known eruption has a radiocarbon age of about 180 years. Fumarolic activity occurs at the Njorowa Gorge and at the Orengingnai and Orkaria (Olgaria) pumice cones.

NASA Landsat image, 1999 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).
See title for photo information.
GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.

Title: Nairobi (Administrative Boundaries Overlay)
Publisher: Survey of Kenya
Country: Kenya
Year: 1980
Series: Y503 (SK60)
Map Type: Topographic
Scale: 1:250,000
Map of Nairobi  (Administrative Boundaries Overlay)

Title: Sakutiek
Publisher: DOS
Country: Kenya-E Af
Year: 1975
Series: Y731 (423)
Map Type: Topographic
Scale: 1:50,000
Map of Sakutiek

Title: Geological Map of the Suswa Area
Publisher: Kenya MENR Mines and Geological Department
Country: Kenya AF
Year: 1970
Map Type: Geology
Scale: 1:125,000
Map of Geological Map of the Suswa Area

Title: Mombasa-Nairobi
Publisher: US Army Map Service
Country: Africa
Year: 1944
Series: AMS
Map Type: Topographic
Scale: 1:1,000,000
Map of Mombasa-Nairobi
Smithsonian Sample Collections Database

There are no samples for Olkaria in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

External Sites