Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On September 3, 2016, a magnitude 5.6 earthquake that occurred in Pawnee, Oklahoma, was recorded by Weston Observatory (see seismogram below). This earthquake is tied with another magnitude 5.6 earthquake in Prague, OK (November 6, 2011) as the two largest known earthquakes in Oklahoma.

For more information about the effects of this earthquake, see:

Oklahoma Quake Prompts Shutdown of Gas-Linked Wells (USA Today) 

Visit @Weston_Quakes on Twitter for updates on this earthquake.

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring web site.