The gigantic megaquake is matched only by the 1960 Valdivia earthquake in the same region.
Two huge blobs of dense rock jammed deep beneath Chile's coastline acted like seismic speed bumps during the magnitude-8.8 Maule earthquake in 2010, according to a new study.
The swarm of 85,000 earthquakes that struck Antarctica was the strongest seismic outburst ever recorded there.
The central section of the San Andreas Fault usually moves by quietly creeping, but new research suggests it's hosted some serious earthquakes in history.
A mountain-sized chunk of volcanic rock under Japan is changing the way that tectonic plates subduct and may be channeling the direction of earthquakes.
More than 55 earthquakes have struck off the Oregon coast, but the swarm is not likely to trigger any danger to those on land.
Researchers have detected the deepest earthquake ever, 467 miles below the Earth's surface.
Lake Monticello in South Carolina is causing a series of small earthquakes, the third time in its history that the man-made reservoir has created swarms of seismic activity.
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