For U.S. seismologists, Japan’s “megaquake” warning last week renewed discussion about when and how to warn people on the West Coast if they find elevated risk of a major earthquake.

A powerful 6.0 magnitude earthquake struck off the coast of Greece early this morning, prompting urgent warnings for residents and tourists to evacuate coastal areas as a precaution against a ...

Rumors in Hong Kong and other Asian cities of a major earthquake or a tsunami in July in Japan have led to flight ...

An image of a USGS map showing the epicenter of the earthquake that struck in the ... p.m. UTC (2:55 p.m. ET), nearly six hours after the major quake. "The speed of tsunami waves depends on ...

Seismic symphonies of minor earthquakes may affect grand movements on major faults.

A major, 7.4-magnitude earthquake struck in Chile on Thursday, according to the United States Geological Survey. The temblor happened at 9:50 p.m. Chile time about 28 miles southeast of San Pedro ...