The Pacific Northwest Seismic Network (PNSN) said the quake was not big enough to meet the alert threshold, but it was detected by the ShakeAlert system. However, the earthquake was not ...

San Francisco Fire Department: Tsunami alerts “not a false ... Thursday’s earthquake was “well above” established seismic thresholds that could cause a tsunami, according to Amy Palmer ...

While Friday morning's 3.7 earthquake and its aftershocks near the San Andreas Fault may have been small, a USGS scientist says it is a reminder to stay prepared.

TOKYO (AP) — Japan issued a tsunami advisory on Monday after a magnitude 6.6 earthquake struck the southwest of the country. The public warnings to stay away from coastal areas were later lifted.