How the snowmelt could be causing earthquakes in the Sierra
A swarm of earthquakes rattled the Sierra, north of Lake Tahoe early Tuesday morning, according to the U.S. Geological Survey. Experts say earthquake activity increases during this time of the year due to the snowmelt.
8.7-magnitude earthquake off Sumatra
An 8.7-magnitude earthquake strikes Indonesia 434 km southwest of Banda Aceh, Sumatra, Indonesia.