ROOKS COUNTY — A small earthquake shook portions of Rooks County Thursday morning. The quake just after 6 a.m. measured a magnitude 3.1, according to the U.S. Geological Survey.

It was centered approximately 1.5 miles north of Zurich.  The Rooks County Sheriff’s office reported they had not received calls about the quake.

The USGS reported a  2.8-magnitude quake just south of Zurich Oct. 6 and a 3.3-magnitude quake just west of that area Oct. 3.

A quake measuring 2.2 was recorded in northern Rooks County Oct. 2.