This spectrogram shows four hours of USGS Hawaiian Volcano Observatory data streams across six seismic stations at Kilauea’s ...

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.

The earthquake was centered near 'Ohonua at a depth of 11.6 kilometers (about 7.2 miles). The USGS said it received three ...

Scientists are warning that a 1,000-foot-tall “mega tsunami” could potentially wipe a large chunk of America off the map – if ...