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 Ring of Fire is a 40,000-km horseshoe-shaped belt around the edges of the Pacific Ocean, known for its intense seismic and volcanic activity.

The recent, small earthquakes that rattled the New York metro area serve as a reminder that seismic activity does occur in the region.

Noble County was suddenly the sight of dozens of small earthquakes this year after fracking operations started in Buffalo Township.

When earthquakes happen, California's MyShake app detects it and sends an alert to users. It's the nation's first statewide earthquake early warning system.

The recent, small earthquakes that rattled the New York metro area serve as a reminder that seismic activity does occur in the region.

The Kamchatka Peninsula earthquake may not have brought the same devastation as previous shocks, but a far more deadly seismic event is looming for the US West Coast.

This is because several million earthquakes occur annually; thereby, thousands occur each day, although most are too small to be located," USGS wrote on its website.

Earthquakes are actually common across South Carolina and North Carolina, they just tend to be small ones.

The Klyuchevskoy volcano on Russia's Kamchatka peninsula began erupting after Wednesday's powerful earthquake in the Pacific, a geological monitoring service said.

New Jersey experiences earthquakes due to the fault line running through the state. Here is the science behind the cause and the Ramapo Fault.