Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

The Hawaii earthquake was not related to a magnitude 4.6 quake that struck near Malibu about an hour and a half later and was felt across a wide swath of Southern California.

A 5.7 magnitude earthquake rocked the big island of Hawaii on Friday, according to the U.S. Geological Survey. The earthquake was detected near Pāhala, on Hawaii's southern coast, just after 10 a ...

What if the most telling indications of an impending volcanic eruption are buried deep under the ocean, or in a fleeting succession of tiny quakes that no one perceives? As volcanoes of the Pacific ...

Increased seismic activity from one of Hawaii’s – and Earth’s – most active volcanoes led to roughly 320 earthquakes in 24 hours, according to the United States Geological Survey’s ...

A magnitude 4.2 earthquake was felt by nearly 90 people Wednesday afternoon on the Big Island of Hawaii. The Hawaiian Volcano Observatory said would monitor volcanoes for any changes.

Roberts says his earthquake forecasts, which included a prediction of the earthquake that shook Hawaii on Thursday (Oct. 20), are accurate over 90 percent of the time.

Reporting from Honolulu — A magnitude 6.9 earthquake struck Hawaii Island on Friday, with its epicenter at the heart of the newly erupting Kilauea volcano. The earthquake could be felt across ...

Scientists warn 1,000-foot ‘mega-tsunami’ could wipe part of America off the map. Alaska, Hawaii and areas along the mainland West Coast would be at risk if an earthquake erupts along the ...