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How do I sign up for the ShakeAlert® Earthquake Early Warning System?

How do I sign up to receive ShakeAlert®-powered Alerts on my phone?

Provider Type Apple Store
Google Play
Link States
USGS/FEMA Wireless 
MyShakeTM Mobile App Y/Y MyShake CA/OR/WA
Google Android 
N/A Google CA/OR/WA
Alert San 
Diego with 
Mobile App Y/Y Alert San Diego CA

The USGS issues ShakeAlert® Messages but alert delivery will come by other public and private means (internet, radio, television, cellular), including Wireless Emergency Alerts (WEA) -- think of an AMBER Alert -- delivered by FEMA’s Integrated Public Alert and Warning System (IPAWS). Alert delivery via the WEA system is available in California, Oregon, and Washington. To ensure that you can receive WEA alerts consult your cell phone instructions about receiving emergency alerts or contact your cell phone service provider.

Many USGS partners across California, Oregon, and Washington already use ShakeAlert Messages to enhance public safety. Water and gas utilities, transit systems, and emergency facilities like fire stations and hospitals alert staff to take a protective action such as Drop, Cover, and Hold On and trigger automated actions such as opening a fire house door so first responders can do their job.

There are several ways to get ShakeAlert-powered alerts on your cell phone. (Note: The USGS does not directly or indirectly endorse any product or service provided, or to be provided, by these alert delivery providers.)

  • The MyShakeTM app was developed by the UC Berkeley and is sponsored by the California Governor’s Office of Emergency Services. MyShake is available for free in the Apple iTunes and Google Play stores – more information is available here. MyShake is currently operating in California, Oregon, and Washington.
  • Google provides a ShakeAlert-powered earthquake alert feature that is integrated into the Android Operating System. This service is available in California, Oregon, and Washington on cell phones using the Android operating system.
  • ShakeReadySD is the ShakeAlert-powered Earthquake Early Warning component of the Alert San Diego app. ShakeReadySD only delivers alerts to phones in California. Alert San Diego can be downloaded for free on the Apple iTunes and Google Play stores.

The testing of alert delivery to cell phones began in California 2019, joined by Oregon and Washington in 2021. To learn more, visit the ShakeAlert website or follow USGS ShakeAlert on X

These products should not be confused with the USGS Earthquake Notification Service (ENS), which is a free, customizable service that sends out automated emails or texts whenever earthquakes occur in whatever area you designate. ENS is NOT an early warning system.

For more information about ShakeAlert-powered Alerting in your state, contact your state emergency management agency: