On March 27, 1964, at 5:36 p.m. local time, the ground below southern Alaska ruptured with unprecedented force. Measuring 9.2 on the moment magnitude scale, the Great Alaska Earthquake was the most ...

As the world's tectonic plates crash, grind and dive into one another, they release their pent-up energy in giant earthquakes that can rock the ground, trigger volcanic eruptions, move mountains and ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (NEXSTAR) – An 8.8 magnitude earthquake – ...

An 8.8 magnitude earthquake — one of the most powerful in recorded history — struck off the coast of Russia Tuesday, prompting tsunami watches and warnings around the globe. But how does it measure up ...