World Map › Mount Longonot
Volcano
Mount Longonot
Stratovolcano · 2,776 m · Kenya
Mount Longonot sits on the Somali Plate, in a rift zone. 3 eruptions are known since the end of the last ice age, the most recent in 1863.
Mount Longonot rises in the Great Rift Valley of Kenya, south of Lake Naivasha. Its summit crater is clearly visible from the Nairobi road.
It last erupted in the 19th century. The trail around the crater rim is a popular hike within a national park.
- Elevation
- 2,776 m
- Type
- Stratovolcano
- Tectonic Setting
- Rift zone, continental crust
- Dominant Rock
- Trachyte / Trachydacite
- Plate
- Somali Plate
- Country
- Kenya
- Last Eruption
- 1863
- Known Eruptions (Holocene)
- 3
- Max. Explosivity (VEI)
- 0
Nearby Cities
Cities of more than 20,000 people within 100 km. At least 44,000 people live in those within 30 km.
- 23 kmNaivasha44,000 people
- 58 kmNairobi3,010,000 people
- 73 kmThika99,000 people
- 79 kmNyeri51,000 people
- 82 kmNakuru365,000 people
Eruption Timeline
Each bar is an eruption; its height shows its explosivity (VEI 0 to 8).
Eruption Uncertain Date
Sources : Global Volcanism Program, 2026. Volcanoes of the World (v. 5.4.0; 7 Aug 2026), Smithsonian Institution, doi:10.5479/si.GVP.VOTW5-2026.5.4 (volcano.si.edu) · NOAA NCEI · USGS · Wikidata