Small earthquake recorded in Michigan, felt miles away

A geological expert says a small earthquake centered in southern Michigan likely was an aftershock of a larger quake that hit eight weeks earlier.

The U.S. Geological Survey says the 3.3-magnitude that hit Tuesday morning at 11:42 was centered 3 miles underground in Calhoun County’s Tekonsha Township. It’s northeast of Union City, about 20 miles from where a 4.2-magnitude earthquake occurred May 2 in Kalamazoo County.

Geological Service geophysicist Don Blakeman tells the Kalamazoo Gazette the new quake is likely an aftershock.

Geologists say earthquakes of magnitude 2.5 to 3.0 are generally the smallest that are felt by humans and damage is unlikely in quakes below magnitude 4.0.  (AP)

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