Modern Android smartphones are capable of detecting earthquakes by using their built-in motion sensors as part of Google’s global earthquake detection network. When thousands of nearby devices simultaneously detect abnormal ground movement, Google’s servers analyze the data and issue early warnings to users before the strongest shaking arrives. In this segment, technology expert Juan Guevara explains how this innovative system works, how to activate earthquake alerts on Android devices, and why these notifications can provide critical seconds that help people reach safety during an emergency.