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Google's Android System Detects Earthquakes Using Smartphone Sensors
🇸🇦 Saudi Arabia /Technology

Google's Android System Detects Earthquakes Using Smartphone Sensors

From Asharq Al-Awsat · () English

Translated from English, summarized and contextualized by DistantNews.

At a glance

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  • Google's Android system uses smartphone accelerometers to detect earthquakes, sending data to servers for confirmation and location estimation.
  • The system aims to warn users before damaging seismic waves arrive, offering 'BeAware' and 'TakeAction' alert levels.
  • While effective, the system has faced challenges, including failing to alert users before major earthquakes in Türkiye and Syria and a false alarm in Brazil.

Google's Android operating system is leveraging the accelerometer sensors found in billions of smartphones worldwide to provide early earthquake warnings. This system detects ground shaking, a function of the sensor originally intended for tasks like screen rotation, and transmits this data to Google servers.

can also detect the ground shaking from an earthquake

— GoogleExplaining the function of smartphone accelerometers in earthquake detection.

By rapidly cross-referencing reports from numerous devices, Google's system can confirm an earthquake's occurrence, estimate its location, and determine its magnitude. The primary goal is to alert as many people as possible before the slower, more destructive seismic waves reach them. Google offers two tiers of alerts: 'BeAware' for weaker tremors and 'TakeAction' for more severe quakes, which overrides phone silence settings and sounds a loud alarm.

Since April 2021, Google's system has issued 790 million alerts, detecting over 2,000 potentially dangerous earthquakes. However, the system has not been without its issues. Notably, Android phones failed to issue warnings before the devastating earthquakes in Türkiye and Syria in February 2023, which claimed nearly 60,000 lives. Google stated it has since updated its algorithms to prevent similar failures and also apologized for a false alarm sent to users in Brazil in February 2025.

confirm that an earthquake is happening and estimate its location and magnitude

— GoogleDescribing the process of confirming and locating earthquakes using aggregated sensor data.

In Venezuela, following a recent earthquake, many social media users reported receiving alerts on their Android smartphones moments before the shaking began, with some posting unverified videos of these alerts prompting evacuations. Google's system has been credited by some users for providing crucial advance notice. Apple's iOS also offers government emergency alerts, but unlike Google, it does not currently utilize a distributed detection system using its users' phones.

The goal is to warn as many people as possible before the slower, more damaging S-wave of an earthquake reaches them

— GoogleStating the objective of the early warning system.
DistantNews Editorial

Originally published by Asharq Al-Awsat in English. Translated, summarized, and contextualized by our editorial team with added local perspective. Read our editorial standards.

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