The quake happened at 10:34 p.m.
Rafael Abreu, with the Survey, says this is a "pretty significant" earthquake for our area.
Eyewitness News received several calls from viewers in Dover and Randolph reporting a loud explosion and their houses shaking.
Police departments in Morris County are getting flooded with phone calls from concerned residents.
There were no immediate reports of damage or injuries, and officials said it was unlikely that a quake of that magnitude would be a damaging event. Quakes of magnitude 2.5 to 3 are the smallest that can generally be felt by people.
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