Penn State Seismic Network

Discover the Penn State Seismic Network, that monitors earthquakes happening in Pennsylvania.

In Pennsylvania, big earthquakes are rare, the biggest 5.2 in 1998, but PA has its fair share of little ones. Since the beginning of 2015, there have been 12 earthquakes in the commonwealth, none larger than magnitude 2.6. Most are so minor you wouldn’t even notice them, but the Pennsylvania State Seismic Network doesn’t miss much. Learn more!