News-Capital: A new study explains how just four wells forcing massive amounts of drilling wastewater into the ground probably are shaking up Oklahoma.
Those wells seem to have triggered more than 100 small to medium earthquakes in the past five years, according to a study published Thursday by the journal Science. Many of the quakes were much farther away from the wells than expected.
Combined, those wells daily pour more than 5 million gallons of water a mile or two underground into rock formations, the...