MCCOOK – Northwestern University scientists have installed a device at McCook’s Federal Quarry that will record seismic activity 24/7 and possibly lead to an explanation for the 3.2 magnitude earthquake triggered near the quarry Nov. 4.

The seismograph will constantly upload data to the U.S. Geological Survey and provide the first comprehensive analysis of seismic activity in the area, the office of U.S. Rep. Dan Lipinski said in a news release.