Animation: Have the number of earthquakes really increased in Oklahoma?

This is an archived article and the information in the article may be outdated.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.

OKLAHOMA CITY – Experts across the state have noticed an increase in seismic activity over the last couple of years.

In some parts of the state, residents say what used to be a calm portion of Oklahoma has been rattled with earthquakes.

Recently, the U.S. Geological Survey created an animation to show the increase in activity over the last six years.