U.S. Geological Survey

Asian Carp

Study: Physical, Electric Barriers Best Defenses Against Asian Carp

Placing dam-like structures in Chicago waterways would be an almost foolproof method of preventing Asian carp from reaching Lake Michigan, while a less pricey electric barrier system also has solid prospects for shielding the Great Lakes from the invasive fish.


Northwestern University seismic station at Ryerson Woods Conservation Area in Lake County, IL. measured Monday's tremor.

Cause Of Tremors In Suburbs Likely A Quarry Blast

Residents in the western suburbs felt tremors early Monday afternoon, and federal officials believe the shaking was from a quarry blast and not a natural earthquake.


Lake Michigan (Photo by Tim Boyle/Getty Images)

Officials Warn Of Great Lakes Water Shortage

A federal analysis this week warned that the Great Lakes region could experience water shortages in some locations in coming years because of climate shifts or surging demand.

CBS Chicago–02/09/2011

This map from the U.S. Geological Survey plots the intensity levels of Thursday's earthquake near Kokomo, Ind. (Credit: USGS)

Indiana Earthquake Felt In Chicago

An exceedingly rare earthquake struck central Indiana Thursday morning, and some Chicagoans felt tremors.

CBS Chicago–12/30/2010