A moderately strong, 5.6-magnitude earthquake struck near Lima, Peru on Sunday, according to the United States Geological ...

A minor, 3.3-magnitude earthquake struck in the North Pacific Ocean on Tuesday, according to the United States Geological ...

ETH Zurich scientists confirmed that solid rock flows deep inside Earth, solving a decades-old mystery about seismic waves.

Alaska, Hawaii and areas along the mainland West Coast would be at risk if an earthquake erupts along the Cascadia subduction zone within the next 50 years.

There is danger lurking on the sea floor off the Pacific Northwest’s coast: After centuries of two tectonic plates pushing up against each other, the Cascadia subduction zone ... earthquake, elephants ...

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