seismic sensors News

LOS ANGELES — California’s new earthquake early warning cellphone app issued its first public alert when a modest tremor occurred this week in a rural area of the state, a newspaper reported. MyShake app project manager Jennifer Strauss said more …

LOS ANGELES — California officials are spending more than $40 million on an earthquake early warning system that in addition to alerting the public could also be used to automatically halt trains and open fire station doors moments before a …