Waves from these quakes traveled through the core and up to North America, where they were recorded by EarthScope, a project that deployed portable seismic monitors across the U.S. between 2003 ...

Sam Brownback announced Wednesday that the state will fund a six-station portable seismic network to monitor increased seismic activity in Harper, Sumner and Barber counties. TOPEKA, Kan.

Sam Brownback announced that the state will buy monitors to track increased seismic ... would spend about $85,000 to buy a six-station portable seismic network for Harper, Sumner and Barber ...

Sam Brownback announced that the state will buy monitors to track increased seismic ... would spend about $85,000 to buy a six-station portable seismic network for Harper, Sumner and Barber ...