Magnitude 5.8 Earthquake in Oklahoma

Release Date:

A magnitude 5.8 earthquake struck in Oklahoma on September 3, 2016 at 12:02:44 UTC (7:02 am local time). 

Crop of OK earthquake

A magnitude 5.8 earthquake struck in Oklahoma on September 3, 2016 at 12:02:44 UTC (7:02 am local time). The USGS revised the magnitude from a 5.6 based on further in-depth analysis of seismic recordings.

This is ​Oklahoma’s largest recorded earthquake to date.

Visit the USGS event page for more details on this earthquake.

Without studying the specifics of the wastewater injection and oil and gas production in this area, the USGS cannot currently conclude whether or not this particular earthquake was caused by industrial-related, human activities. However, we do know that many earthquakes in Oklahoma have been triggered by wastewater fluid injection. The USGS will continue to process seismic data in the following days and weeks that will help answer this question.

For estimates of casualties and damage, visit the USGS Prompt Assessment of Global Earthquakes for Response (PAGER) website.

If you felt this earthquake, report your experience on the “USGS Did You Feel It?” website for this event.

The USGS operates a 24/7 National Earthquake Information Center in Colorado that can be reached for more information at (303) 273-8500.

Learn more about the USGS Earthquake Hazards Program.