Was that an earthquake you just felt or merely a big truck rumbling by? You don't have to wonder thanks to the U.S.

A 5.0-magnitude earthquake was reported in Alaska on Monday (July 21), according to the United States Geological Survey. The ...

Three powerful earthquakes struck off the coast of Russia's far east on Sunday, triggering a tsunami alert, the US Geological Survey said. Earlier 5.0-magnitude and 6.7-magnitude earthquakes did not ...

According to the USGS Hawaiian Volcano Observatory (HVO), dome fountains and lava overflows began at the Halema'uma'u crater shortly after 4:00 a.m. Hawaii Standard Time ...

The alerts rely on detecting fast-moving P-waves, which precede the more destructive S-waves during an earthquake. If enough ...

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

The United States Geological Survey (USGS) shows lava fountains shooting up high in the latest episode of an ongoing eruption ...

A HUGE 7.3 magnitude earthquake has struck off the coast of Alaska. A tsunami warning is now in place after the tremors ...