Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Longonot
Longonot as seen from the flanks of Suswa volcano (SSW of Longonot) in the Eastern Rift Valley of Kenya. The modern cone was constructed within a broad 8 x 12 km caldera and itself contains a smaller 1.8-km-wide summit crater that gives the summit a flat profile. Post-caldera lavas are found on the caldera floor and on the flanks. Masai tradition records a lava flow on the N flank during the 19th century. Photo by Tom Jorstad, 1990 (Smithsonian Institution).
Volcano Number:222100
Volcano Name:Longonot
Country:Kenya
Volcano Type:Stratovolcano
Last Eruption:1863 CE
Elevation:2776m
Tectonic Setting:Rift zone / Continental crust (> 25 km)
Pop. within 5km:809
Pop. within 10km:17893
Pop. within 30km:410677
Pop. within 100km:8750154
Latitude:-0.914
Longitude:36.446



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
222100 Longonot 13994 Confirmed Eruption Radiocarbon (uncorrected) -7200
222100 Longonot 13995 Confirmed Eruption Radiocarbon (uncorrected) -1330
222100 Longonot 13996 Confirmed Eruption 0 Northern flank Anthropology 1863
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.


Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal


Data from the SESAR Database
Sorry. No data exist for this volcano in the SESAR database.


Data from the MaGa Database
Location: Longonot volcano (View Details at MaGa DB)
Description: Longonot volcano is situated in the southern Kenyan Rift and is one of 12 Quaternary volcanoes that line the central rift grabens. It is a large caldera volcano, consisting of a relativelymodern trachyte cone situated within a 12 km caldera structure.
Hazard Description: not reported
Type: soil_diffuse_emission
Region: Nakuru County, Kenya
Country: Kenya
Volcanic Complex: Longonot
Gas Flux Data:
Measurement Name Detail Date Specie Flux Std. Dev. Unit of Measure
Longonot_01112012 Detail 2012/11/01 CO2 0.3 0 Mg/d