A powerful earthquake Monday shook fishing villages along Mexico's Gulf of California and prompted alarm as far away as Phoenix, but there were no immediate reports of injuries or damage. The U.S. National Earthquake Information Center said the 6.9-magnitude quake struck at 12:59 ...

Four earthquakes, the strongest registering 6.9 magnitude, struck the Gulf of California off Mexico's west coast Monday, according to multiple monitoring services, with no reports of damage. The series of quakes began with a 5.8-magnitude tremor at 10:55 am local time (1755 GMT), followed by one registering a magnitude of 6.9 five minutes later. Two ...

University of Colorado researchers say global warming increases the chances that the Colorado River system's reservoirs could be depleted by mid-century. A study released this week says that if global warming cuts the river's average flow by 10 percent, the chances of draining the river's ...