Kone
Caldera(s) in Ethiopia
Key Facts
Elevation
1,380 m (4,528 ft)
Type
Caldera(s)
Location
8.810°, 39.695°
Region
Main Ethiopian Rift Volcanic Province
Rock Type
Rhyolite
Tectonic Setting
Rift zone
Location
Loading map...
Overview
The Kone volcanic complex (also known as Gariboldi) is composed of a series of silicic calderas and young basaltic cinder cones and lava flows about 30 km SW of Fentale volcano in the Main Ethiopian Rift. As many as eight silicic calderas are accompanied by ignimbrite outflow sheets. Kone, the youngest caldera, is an elliptical 5 x 7.
5 km structure trending E-W and oriented perpendicular to the rift. The rim rises about 100 m above the caldera floor; the eastern rim overlaps with a smaller elliptical caldera. Regional fissures trending roughly N-S cut across the caldera and its flanks.
The youngest basalts were erupted during the first half of the 19th century from vents along a hinge line between the smaller eastern caldera (Korke) and the larger western one. A dark lava flow from a cone near the center of the southern caldera (Birenti), extended 12 km SW, where the caldera rim had been eroded, and surrounded older cones.
Volcanic Hazards & Risk Assessment
Primary Hazards
Risk Level
Geological Composition & Structure
Rock Types
Tectonic Setting
Age & Formation
Eruption Statistics & Analysis
| Metric | Value | Global Ranking | Significance |
|---|---|---|---|
| Total Recorded Eruptions | Unknown | Low | Moderately active volcano |
| Maximum VEI | VEI Unknown | Minor | Local impact potential |
| Recent Activity | 206 years ago | Historical | Historically active |
Monitoring & Alert Status
Monitoring Networks
Current Status
Nearby Volcanoes in Eastern Africa Volcanic Regions
Quick Info
- •Smithsonian ID: 221200
- •Evidence: Eruption Observed
- •Epoch: Holocene
About the Photo
The Kone volcanic complex, also known as Gariboldi, is composed of a series of silicic calderas and young basaltic scoria cones and lava flows. N is towards the lower left in this International Space Station image. The dark-colored basaltic lava flows on the caldera floor were erupted during the first half of the 19th century along a ridge between a smaller caldera to the E and a larger 5-km-wide caldera to the W. The larger young lava flow at the right was erupted from a vent on the SE flank.
NASA International Space Station image ISS001-363-9, 2001 (http://eol.jsc.nasa.gov/).
Authority Sources
Related Volcanoes
Basic Information
This page shows basic data from the Smithsonian Global Volcanism Program. For more detailed information, visit the official Smithsonian page.