The Benefits of Emergency Preparedness
The largest seismic event to hit the Southern California region in over 20 years rattled Los Angeles and surrounding communities with shaking that lasted over 30 seconds.
It was a wild 4th of July for residents near and around Ridgecrest, CA as a magnitude 6.4 earthquake hit at 10:33 am. Shaking was felt over a wide area spanning from Northern California to Phoenix and Las Vegas.
Early Warning Labs earthquake early warning system (powered by USGS ShakeAlert) functioned properly, stayed online, and was able to deliver alerts to both our commercial clients and mobile app users. EWL was the only commercially licensed USGS partner to successfully deliver early warnings during this recent shaking sequence.
Commercial Warning Delivered
July 4 – 6.4 Magnitude Quake
Our shaking intensity threshold settings triggered two commercial responses in Los Angeles. Shaking was forecasted at an intensity 3 for a wide area of Los Angeles (weak to light shaking) with a ~50-second warning before the shaking started. An audio alert was played to all two-way radios and select PA systems at the corporate campus of a Los Angeles area customer. This specific installation protects over 50,000 individuals on any given day. An alarm was also triggered at a pilot Los Angeles County fire station along with our mechanical trigger to automatically open the fire station doors.
Firefighters were able to begin pulling the fire trucks out of the station before the shaking started.

Early Warning Labs is the first and only official USGS ShakeAlert commercially licensed partner and has built a proprietary consumer and enterprise SaaS platform using the USGS ShakeAlert data feed. The USGS ShakeAlert System works by detecting an earthquake and issuing a ShakeAlert which includes information about estimated shaking.
July 4 – 6.4 Magnitude Quake
Early Warning Labs delivers this ShakeAlert and allows for automated actions to take place on-site including the automation of mechanical interfaces and public audio alerts.
- Early Warning Labs delivers this ShakeAlert
- Allows for automated actions to take place on-site
- The automation of mechanical interfaces and public audio alerts.
Early Warning Labs delivers this ShakeAlert and allows for automated actions to take place on-site including the automation of mechanical interfaces and public audio alerts. These actions are currently used in a wide variety of situations including opening fire station doors, sending alerts out to hospital staff, alerting students to drop, cover and hold, and many more.successfully deliver warnings of 50+ seconds before the shaking was felt.
The largest seismic event to hit the Southern California region in over 20 years rattled Los Angeles and surrounding communities with shaking that lasted over 30 seconds.
It was a wild 4th of July for residents near and around Ridgecrest, CA as a magnitude 6.4 earthquake hit at 10:33 am. Shaking was felt over a wide area spanning from Northern California to Phoenix and Las Vegas
It was a wild 4th of July for residents near and around Ridgecrest, CA as a magnitude 6.4 earthquake hit at 10:33 am. Shaking was felt over a wide area spanning from Northern California to Phoenix and Las Vegas.
t was a wild 4th of July for residents near and around Ridgecrest, CA as a magnitude 6.4 earthquake hit at 10:33 am. Shaking was felt over a wide area spanning from Northern California to Phoenix and Las Vegas
About EWL
Early Warning Labs (EWL) has partnered with the USGS to develop a powerful technology, that gives people time to take cover and creates automated responses for businesses, transportation & machinery to prevent massive damage.