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Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Shala
The eastern (right) side of the darker Lake O'a (Lake Shalla) forms the 17-km-wide O'a caldera. Post-caldera activity produced cones N of the caldera. The small light blue-green Chitu maar on the W side of the lake was erupted in an area of Holocene vents along the Corbetti-Shalla fissure system extending N from Corbetti caldera. Fumarolic activity continues along the S and E shores. NASA International Space Station image ISS001-363-7, 2001 (http://eol.jsc.nasa.gov/).
Volcano Number:
221280
Volcano Name:
Shala
Country:
Ethiopia
Volcano Type:
Caldera
Elevation:
2075m
Tectonic Setting:
Rift zone / Continental crust (> 25 km)
Pop. within 5km:
148588
Pop. within 10km:
148588
Pop. within 30km:
477361
Pop. within 100km:
8808566
Latitude:
7.4569
Longitude:
38.5571
Details
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The Shala (also known as O'a) caldera along the central Main Ethiopian Rift forms the eastern portion of the 15 x 25 km Lake Shala. Formation of the caldera about 240,000 years ago was accompanied by the eruption of two ignimbrite deposits, the first of which was strongly welded. The only post-caldera activity consists of two pyroclastic cones to the N, one silicic and the other basaltic, and a group of tuff rings, spatter cones, and lava flows of Holocene age near the SW shore of the lake. These were erupted along the Corbetti-Shalla segment of the Wonji Fault Belt, which extends N from Corbetti caldera. Fumarolic activity continues on all sides of the lake.
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Eruption Data from the Global Volcanism Program of the Smithsonian Institution
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Emissions Data from the Global Volcanism Program of the Smithsonian Institution
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Data from the Earthchem Library
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Data from the Earthchem Portal
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Data from the SESAR Database
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Data from the MaGa Database
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Data from UNAVCO
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Data from USIEI
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Data from IRIS FDSNWS
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