An area near Petersville, Alaska, was hit with a 4.6 earthquake on Wednesday, according to the United States Geological Survey. Newsweek reached out to the USGS's Earthquake Hazards Program via email ...

In 1952, a magnitude 9.0 earthquake struck Kamchatka Krai, Russia, marking the world’s first recorded magnitude 9 earthquake.

Russia, Japan and the US have since downgraded warnings, while the Pacific Tsunami Warning Center 1 issued a notice on July ...

Among the active volcanic eruptions was the Krasheninnikov volcano, a previously at least 400-year-dormant volcano.