Learning center
Understand earthquake alerts
Practical, source-backed guides that explain what different earthquake alerts can—and cannot—tell you.
How alerts work
Earthquake notification vs early warning
Learn why a notification after an earthquake is different from a warning sent before strong shaking reaches you.
Android guide
How to receive earthquake alerts on Android
Understand Android's built-in warning system, USGS notifications and custom monitoring with SeismoWatch.
Start with live earthquake data
Want to see what is happening now? Open the latest worldwide earthquakes, see earthquakes today, or review activity from the past seven days.