QUICK LOOK: Earthquake Early Warning Sensor Installation Continues
Channel: Cal OES
Date: 24/05/2018

Earthquake Early Warning (EEW) systems use science, state-of-the-art monitoring technology, and innovative delivery methods to alert people and devices before the anticipated strongest shaking arrives in affected regions. Seconds to minutes of advance warning can provide opportunity to take life-saving actions like Drop, Cover, and Hold On.
During an earthquake, the initial seismic waves, or P waves, are detected by sensors placed throughout California, enabling warning prior to damaging seismic waves, or S waves.
1,115 of these sensors will eventually be installed, giving first responders and emergency managers at Cal OES, along with citizens of California, time to prepare and protect.