The U.S. Geological Survey, the federal keeper of all things earthquake related, has added fluid-injection induced quakes to its map of seismic hazards. Here are some recent man-made temblors that prompted the move.
(Reuters) — Earthquakes caused by human activity will now be included in the U.S. Geological Survey's seismic risk maps, the agency said on Monday after a sharp rise in temblors linked to wastewater disposal wells used by the oil and gas industry in Oklahoma.