On Friday morning, a 4.8 magnitude earthquake hit Hunterdon County, New Jersey, with tremors felt across the Northeast, including Philadelphia. The earthquake’s epicenter was in Tewksbury Township, about three miles northeast of Lebanon, and had a depth of approximately 3 miles, according to the United States Geological Survey. The area where the earthquake hit is approximately 60 miles northeast of Philadelphia, and the Lehigh Valley. The earthquake struck at 10:23 a.m. and is considered minor to moderate, as earthquakes between 4.0 and 4.9 magnitudes fall under this range. Worldwide, there are roughly 13,000 earthquakes in this category every year.