Randolph and Denville police reported hundreds of calls reporting the tremor. Many of the calls came from the Shongum Lake section of Randolph.
One caller likened it to a "rolling" of the ground for about 10 seconds.
Eyewitness News is told like the last two quakes in Morris County, no significant damage or injuries were reported.
A 2.2 magnitude quake was reported Saturday afternoon, centered about six miles north of Boonton.
And an earthquake of magnitude 3.0 rattled windows and alarmed residents of several Morris communities on Feb. 2. That quake was centered in Rockaway, Dover and Morris Plains.
And like the last two earthquakes, officials say this morning's was relatively shallow, less than a mile deep. They all occurred along the Ramapo Fault, a 200 million-year-old fault line on the North American Plate.
An east-west compressional force, caused by the force of the Midatlantic Ridge pressing against the North American Plate, may be to blame.
Researchers have said that the quakes prove Morris residents should be aware that an earthquake can happen at any time.
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