Monday, February 10, 2014GREENVILLE, Pa - The U.S. Geological Survey reports a 2.2 magnitude earthquake occurred on Sunday afternoon five miles northeast of Greenville in Mercer County just south of the Crawford County line. It happed at 5:34 p.m. on Sunday.
The epicenter was just east of State Route 18 in Sugar Grove Township. Government officials calle the quake a very minor event with no damage.
According to the U.S. Geological Survey, Mercer County is part of a seismic zone that has had moderately frequent earthquakes at least since the first one was reported in 1823. The largest earthquake (magnitude 4.8) caused damage in 1986 in northeasternmost Ohio, and the most recent damaging shock (magnitude 4.5) occurred in 1998 at the seismic zone's eastern edge in northwestern Pennsylvania. Earthquakes too small to cause damage are felt two or three times per decade.