Photo: Earthquake "Swarm" Strikes Africa, Puzzles Experts



The Ol Doinyo Lengai mountain in Tanzania (above) could be fueling a recent swarm of small earthquakes in Kenya and Tanzania, experts say.

Yet other scientists point out the tectonic plate shifting under Africa is likely the culprit for the jolts, the biggest of which reached magntitude 5.9.

Photograph by Photodisc/Getty

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