What is ShakeAlert®? The ShakeAlert ® Earthquake Early Warning (EEW) System, managed by the U.S. Geological Survey, detects significant earthquakes quickly enough so that alerts can …

ShakeAlert ® Messaging Toolkits augment existing earthquake preparedness efforts, offer consistent information about ShakeAlert Earthquake Early Warning System technology, and …

End-users in California, Oregon, and Washington receive ShakeAlert-powered alerts only if certain thresholds for magnitude and shaking intensity are met, as identified below.

To advance this goal, the USGS has developed this ShakeAlert Tests, Drills, and Exercises Toolkit to incorporate earthquake early warning (EEW) into existing training activities.

Develop educational resources that promote awareness, understanding, and action related to the ShakeAlert System and earthquake science more broadly. Engage broad and diverse learners …

The ShakeAlert System includes the USGS component, plus the pathways by which ShakeAlert-powered products and services are delivered to end-users, such as alerts to a cell phone or …

Jan 8, 2026 · They summarize how accurately the ShakeAlert system estimated an earthquake’s location, magnitude, shaking intensities, how much warning time for selected nearby cities, …

To reveal the complexities of ShakeAlert’s earthquake early warning riskwork, we first outline ShakeAlert’s history. Then, we consider the experiences of developing the system during the …

In 2016, the USGS began operating a prototype ShakeAlert® system in California, allowing partnering test users to start taking limited actions in response to alerts.

Below is a complete list of License to Operate (LtO) partners, along with their primary point of contact for ShakeAlert-related inquiries. These are currently the only partners with a license to …