According to the U.S.G.S., the aftershock was reported around 7:01 a.m.
The most recent aftershock prior to this one was this past Saturday, also in Gladstone at a magnitude of 2.9.
Similarly, a 2.6-magnitude earthquake was reported in Gladstone on the morning of April 10.
Wednesday's aftershock comes just weeks after an earthquake with a magnitude of 4.8 startled millions of people along the Northeast in early April.
The epicenter was near Whitehouse Station, New Jersey -- about 60 miles from Philadelphia.
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Since then, several more quakes have been felt in the nearby area, and experts say small aftershocks could happen for days or even weeks after the primary event.
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The 4.8-magnitude earthquake was the largest in the Tri-State area since 1973.