The United States Geological Service (USGS) confirmed a magnitude 3.4 earthquake in central Pennsylvania at 8:30 p.m. yesterday. The epicenter of the earthquake was around 11 miles southwest of Mifflintown in Juniata County, more than 40 miles west of Harrisburg.

The USGS is asking residents--Citizen Science Contributors--to report if they felt any tremors, using a Felt Report on their website. 

According to Earthquake Track, eight earthquakes have been recorded in the state over the last year, and this is the largest reported.