three sensors measuring conductance have been installed at USGS gages where water flow is regularly measured. Two additional sensors are ready to go when USGS personnel are available. These automated ...

SAN FRANCISCO (KGO) -- A 3.7 preliminary magnitude earthquake struck off the coast of San Francisco Friday morning, according to the U.S. Geological Survey. The USGS says it was about three miles ...

San Antonians experienced an earthquake Wednesday evening, according to the United States Geological Survey. The magnitude of the earthquake was recorded at 4.5 and occurred at 9:26 p.m. near Falls ...