It’s no secret that the ground beneath our feet has been shaking a bit more in recent years.

Yesterday NewsOK reported that Oklahoma had 222 earthquakes in 2013 that registered as 2.5-magnitude or greater—more than any other year in state history. As of Feb. 17, there were 63 earthquakes that were 2.5-magnitude or greater already in 2014.

Here’s a timelapse of all the 2.5-magnitude or greater earthquakes to shake Oklahoma since 2004. The radius of the circle indicates a greater magnitude.

Pause the animation and drag the slider to take a closer look at each year.