Deep beneath the surface, our planet is a reactor, and one of the ways you'll feel this activity is when there's an earthquake.

Many earthquakes indeed happen as a result of plates rubbing against each other. You can explore “in the laboratory” how earthquakes occur by rubbing two wooden blocks against each other. If the ...

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 ...

About 55 earthquakes a day – 20,000 a year – are recorded by the National Earthquake Information Center. A quick guide to how they are measured.

The recent Kamchatka quake ties for sixth on the all-time list. Here are the top five earthquakes by magnitude.