Another minor earthquake has rattled eastern Connecticut.

Boston College's Weston Observatory says the 2.1 magnitude earthquake at about 7:30 a.m. Tuesday was in Plainfield. It was in the same area as five small earthquakes over five hours Monday morning.

The strongest of those was 3.1 magnitude and could be felt in Rhode Island.

Last Thursday, an earthquake with a magnitude of 2.0 to 2.2 was felt in Plainfield. Homeowners reported it was strong enough to shake picture frames off the walls.

A research scientist at the Weston Observatory said such a series of small earthquakes in the Northeast is not unusual because the eastern U.S. is atop a tectonic plate affected by geological pressure.

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