A minor earthquake this morning about three miles east of Dillsburg, York County, measured 2.1 on the Richter Scale, according to the U.S. Geological Survey's online earthquake center.

It happened at 12:34 a.m., the USGS reported. There were no reported injuries.

It's the second earthquake in the midstate in the past few weeks. A quake measuring 3.3 on the Richter Scale hit Lancaster County on Saturday night.

Also, in October, dozens of small earthquakes, averaging about 2.0 on the Richter Scale, rattled Dillsburg and left residents wondering if their homes and businesses were safe.

Experts say it usually takes a 4.0 on the Richter scale to crack pavement or rock.