Google expands Android earthquake alerts to 200+ countries:Understand how your smartphone detects tremors and shocks

Google has expanded its Android Earthquake Alerts System from 98 to more than 200 countries and regions, bringing earthquake warnings to more users worldwide. The company is also working to make these alerts more informative by adding details about expected shaking and safety measures.
Since its launch in 2021, the system has delivered more than one billion alerts to Android users globally, according to Google. Android earthquake alerts now cover 200+ countries and regions Google announced the expansion on October 15, 2026. The aim is to help more people receive timely information during an earthquake, giving them a few crucial seconds to find a safer place. Boone Spooner, Google’s Group Product Manager for Earthquake Alerts, said: Our physical safety products are deeply important to us. While we hope they never get used, we’re grateful to be able to bring more information to more people when they need it most. How your Android phone detects earthquakes Your Android phone has a small sensor called an ‘accelerometer,’ which detects movement. It is also used for everyday features such as rotating your screen when you turn your phone sideways. Google uses these sensors to help detect possible earthquakes. When a phone senses movement that could be caused by an earthquake, it sends a signal along with an approximate location to Google’s servers. Google then analyses signals from multiple phones to estimate whether an earthquake is happening and where it may be occurring. If the system detects an earthquake, it can send alerts to Android users in affected areas. These warnings may arrive before stronger shaking reaches some locations, giving people a short window to take cover. However, not everyone will receive a warning before shaking begins, particularly those close to the earthquake’s source. Google is making earthquake alerts more informative Google’s system offers three types of alerts, depending on the estimated shaking in an area. 1. Be Aware: A warning about light shaking This alert informs users that an earthquake has been detected nearby and that light shaking may occur. It gives them an early heads-up to stay alert. 2. Be Ready: More details about stronger shaking Google is upgrading the Be Ready alert to provide more useful information. In the coming months, it is expected to include a map showing the area where shaking has been detected, the estimated earthquake magnitude, and recommended safety steps. Users will also be able to access further information as it becomes available. 3. Take Action: An urgent safety warning This alert is designed for situations involving moderate to heavy shaking. It appears across the phone screen and provides immediate safety instructions, such as dropping to the ground, taking cover under sturdy furniture and holding on until the shaking stops. The alert is designed to get users’ attention quickly so they can act without delay. Why these alerts matter During an earthquake, even a few seconds can help someone move away from windows, get under a sturdy table, or warn others nearby. By expanding its reach and improving the information shown on screen, Google aims to make its earthquake alert system more useful to people around the world. However, the system is not a replacement for official emergency warnings or earthquake safety measures. Alerts depend on detection, connectivity, and local availability, and they may not reach everyone before shaking begins.