Scott DiGiralomo, a coordinator with the county's office of emergency management, says the epicenter was just over a mile outside Dover. It was felt mostly by people in Denville and Randolph.
The quake is the third to hit Morris County since Feb. 2.
A 3.0 magnitude earthquake rattled windows and alarmed residents on Feb. 2. That quake was centered in Rockaway, Dover and Morris Plains.
A 2.2 magnitude quake on Valentine's Day shook residents in Boonton and neighboring Montville.
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