# Google turns Android phones into earthquake sensors (HT Tech) > If Google's approaches for detecting and alerting prove effective, warnings would reach more people, including for the first time Indonesia and other developing countries with few traditional sensors. # Google turns Android phones into earthquake sensors ## If Google's approaches for detecting and alerting prove effective, warnings would reach more people, including for the first time Indonesia and other developing countries with few traditional sensors. Aug 12 2020, 07:27 IST ![Follow on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/follow-us-facebook.png) ![Follow on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/follow-us-facebook-hover.png) ![Share](https://images.hindustantimes.com/tech/static/revamp/images/png/Share.png) ![Share](https://images.hindustantimes.com/tech/static/revamp/images/png/Shareclicked.png) ![Share on WhatsApp](https://images.hindustantimes.com/tech/static/revamp/images/png/whatsapp.png) ![Share on WhatsApp](https://images.hindustantimes.com/tech/static/revamp/images/png/whatsapp-hover.png) ![Share on Twitter](https://images.hindustantimes.com/tech/static/revamp/images/png/twitter.png) ![Share on Twitter](https://images.hindustantimes.com/tech/static/revamp/images/png/twitter-hover.png) ![Share on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/facebook.png) ![Share on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/facebook-hover.png) ![Bookmark](https://images.hindustantimes.com/tech/static/revamp/images/png/Bookmark.png) ![Bookmarked](https://images.hindustantimes.com/tech/static/revamp/images/png/Bookmarked.png) ![The system will not work in regions including China where Google's Play Services software is blocked.](https://images.hindustantimes.com/tech/img/2020/08/12/1600x900/earthquake_sensor_1597197279214_1597197284338.jpg) The system will not work in regions including China where Google's Play Services software is blocked. (Pixabay) ![Author Photo](https://images.hindustantimes.com/tech/static/revamp/images/png/HTTech-new-circle-logo.png) ### By REUTERS Alphabet Inc's Google's Android phones on Tuesday started detecting earthquakes around the world to provide data that could eventually give billions of users precious seconds of warning of a tremor nearby, with an alerting feature first rolling out in California. Japan, Mexico and California already use land-based sensors to generate warnings, aiming to cut injuries and property damage by giving people further away from the epicenter of an earthquake seconds to protect themselves before the shaking starts. Seismology experts consulted by Google said turning smartphones into mini-seismographs marked a major advancement, despite the inevitably of erroneous alerts from a work in progress, and the reliance on a private company's algorithms for public safety. More than 2.5 billion devices, including some tablets, run Google's Android operating system. Also read click here. "We are on a path to delivering earthquake alerts wherever there are smartphones," said Richard Allen, director of University of California Berkeley's seismological lab and visiting faculty at Google over the last year. Google's program emerged from a week-long session 4-1/2 years ago to test whether the accelerometers in phones could detect car crashes, earthquakes and tornadoes, said principal software engineer Marc Stogaitis. ALSO READ: Add me to Search: Google launches People Cards in India to make users more visible online Accelerometers - sensors that measure direction and force of motion - are mainly used to determine whether a user is holding a phone in landscape or portrait mode. The company studied historical accelerometer readings during earthquakes and found they could give some users up to a minute of notice. Android phones can currently separate earthquakes from vibrations caused by thunder or the device dropping only when the device is charging, stationary and has user permission to share data with Google. If phones detect an earthquake, they send their city-level location to Google, which can triangulate the epicenter and estimate the magnitude with as few as several hundred reports, Stogaitis said. The system will not work in regions including China where Google's Play Services software is blocked. Google expects to issue its first alerts based on accelerometer readings next year. It also plans to feed alerts for free to businesses that want to automatically shut off elevators, gas lines and other systems before the shaking starts. To test its alerting abilities, Google is drawing in California from traditional government seismograph readings to alert Android users about earthquakes, similar to notifications about kidnappings or flooding. ALSO READ: Google to mark India’s Independence Day with the voices of its people, and AI People expected to experience strong shaking would hear a loud dinging and see a full-screen advisement to drop, cover and hold on, Stogaitis said. Those further away would get a smaller notification designed not to stir them from their sleep, while people too close to be warned will get information about post-quake safety, such as checking gas valves. Alerts will trigger for earthquakes magnitude 4.5 or greater, and no app download is necessary. MyShake, an app launched by Allen's Berkeley lab last year to provide Californians warnings and let them report damage, has drawn 1 million downloads. Stogaitis also said Google has not discussed its plans with Apple Inc, whose competitor to Android comprises half the market in countries including the United States. Apple was not immediately available for comment. 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