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

A new study warns of a potential 1,000-foot mega-tsunami striking the U.S. West Coast within 50 years. Triggered by a major ...

The earthquake was centered near Akutan at a depth of 10 kilometers (about 6.2 miles). The USGS said it received zero reports ...