The entire West Coast is now covered by an earthquake early warning system
The entire West Coast is now covered by an earthquake early warning system 12:32 a.m. As of Tuesday morning, the U.S. earthquake early warning system can issue earthquake alerts to cellphone users in California, Oregon, and Washington. Launched in Los Angeles in late 2018, the ShakeAlert early warning system aims to let people know about incoming shaking, so they can have at least a few seconds to find a safe spot to ride out the earthquake. The alert system is successful because communications systems are now faster than the speed of shaking waves moving through the ground, the The earthqua...