California's ShakeAlert system is designed to give residents a head start before an earthquake strikes. Even a few seconds of warning can make a big difference, allowing people to move to a safer location, brace themselves, or shut off gas lines. The system relies on a network of ground sensors that detect the initial, faster-traveling P-waves of an earthquake.
These sensors send data to processing centers, which quickly determine the earthquake's location and magnitude. If the earthquake is strong enough, the system issues alerts to mobile phones and other devices in the affected areas. The alerts provide an estimate of the expected shaking intensity and the time remaining before the shaking arrives.
ShakeAlert is a collaborative effort between the U.S. Geological Survey (USGS), the California Geological Survey, and other partners. It is constantly being improved and expanded to provide more accurate and timely warnings. Residents are encouraged to download the MyShake app or check with their local emergency management agencies to learn more about receiving ShakeAlert notifications.
California's Earthquake Early Warning System: ShakeAlert Explained
ShakeAlert, California's earthquake early warning system, provides crucial seconds of notice before the ground starts shaking. This allows individuals to take protective actions like dropping, covering, and holding on. The system uses a network of sensors to detect earthquakes and quickly sends alerts to phones and other devices. Learn how ShakeAlert works and how it helps Californians prepare for and mitigate the impact of earthquakes.