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

LOS ANGELES — For decades, geophysicists believed they understood the limits of where earthquakes could occur in Earth’s interior. Then in May of 2015, a magnitude 7.9 earthquake struck at an ...

Earthquakes within a tectonic plate, like those in the eastern U.S., do not have a clear, obvious cause," said USGS research geophysicist Dr. Thomas Pratt. More: Small earthquake hits near US ...

Seafloor sensors caught a rare slow quake in action. It hints at how Earth's stress is quietly released. For the first time, ...

While rare, Redding does get earthquakes strong enough for us to feel. Here's why Shasta and Siskiyou counties and the north ...

Bay Area breakthrough in imaging earthquakes with 1000 times more accuracy could ... the North American tectonic plate and the Pacific Plate. ... volcanic gases inside the Earth’s interior.

Recently, frequent earthquakes have come into the limelight, with the strongest one leading to destruction. Here are six ...

KS3 Geography. Plate tectonics: Earthquakes. A short video for 11-14 year old pupils, exploring tectonic activity and earthquakes and featuring case studies from Haiti and New Zealand.