The insurance commissioner for the state of Oklahoma is telling residents it’s time for them to purchase earthquake insurance.

Commissioner John Doak said that seismic activity experienced in the central part of the state likely will continue. He said that property owners who haven’t purchased policies can suffer quake damage that would seriously hurt their finances.

“Looking into earthquake insurance after your home or business has sustained damage resulting from an earthquake will do little good to help you recover,” Doak wrote in a statement. “Now is the time to protect yourself before the next one occurs.”

A report released last week from the U.S. and Oklahoma Geological surveys suggests that the frequency of quake has risen and continues to rise. Between 1975 to 2008, one to three magnitude 3.0 quakes or larger occurred yearly. From 2009 to 2013, the number was around 40 earthquakes per year.