The magnitude-2.0 quake hit at 1:19 a.m. It was centered in Ringwood, a community that's still dealing with downed trees and power outages in the wake of Superstorm Sandy.
People who felt the temblor reported hearing a loud boom. There were no reports of damage or injuries from the quake.
Experts say the last earthquake in New Jersey had a 2.2 magnitude and was recorded in February 2010.
The Associated Press contributed to this report.