The United States Geological Survey detected a small earthquake near Sinking Spring Sunday night. The magnitude 1.4 quake was recorded on May 3rd, at a depth of 5 kilometers, West of Sinking Spring along Penn Ave.
The recorded time was 10:25pm Sunday night. The earthquake was picked up by multiple monitoring stations.
Read the full USGS earthquake report here: https://earthquake.usgs.gov/earthquakes/eventpage/us700099ki/executive
According to the USGS, Berks falls into the Lancaster seismic zone of southeastern Pennsylvania. Earthquakes in the central and eastern U.S., although less frequent than in the western U.S., are typically felt over a much broader region. East of the Rockies, an earthquake can be felt over an area as much as ten times larger than a similar magnitude earthquake on the west coast.