While Paul and Mary Ann were out on an evening walk in central Utah, where much of the earth’s geologic past is laid bare, ...

Brink-Roby teaches geology at Marshall University. He said each of the quakes are very deep in the earth, leading him to believe they are natural -- not man-made. “These faults are way deeper than ...

Federal land managers say they're seeking the public's help as they investigate prehistoric petroglyphs that were recently ...

Under the Sierra Nevada in California, scientists have observed a rare phenomenon that sheds light on the dynamics of the ...