Cumulative number of earthquakes with a magnitude of 3.0 or larger in the central and eastern United States, 1973-2014
![Cumulative number of earthquakes with a magnitude of 3.0 or larger in the central and eastern United States, 1973-2014](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/cumulative_earthquakes.jpg?itok=yh2baJ6M)
Detailed Description
Cumulative number of earthquakes with a magnitude of 3.0 or larger in the central and eastern United States, 1973-2014. The rate of earthquakes began to increase starting around 2009 and accelerated in 2013-2014.