As many of us earth and atmospheric scientists already know, seismic activity in Oklahoma has increased dramatically since 2009. This increase in earthquakes seems to be common knowledge. However, I was curious about some of the specific details and statistics surrounding this new phenomenon. According to the Oklahoma Geological Survey, or OGS, the northwest and central part of the state, which has historically had a low rate of seismic activity, has seen seismic activity rates jump by nearly 600% between the years 2009 – 2016 compared to the rate of activity from 2007 and earlier. I recently attended to the 22ndAnnual 3D Seismic Symposium in Denver, CO, where the director of the OGS, Dr. Jeremy Boak, gave a presentation about the seismology of induced, or human caused, earthquakes in Oklahoma and how this new trend was effecting the state.
Earthquake events in Oklahoma from 2009 - present mapped in Surfer color-coded by year.