Thursday, April 29, 2021

Android Improves Earthquake Detection


Google is expanding its Android-based earthquake detection and alert system, filling in gaps in places where there are few seismometers and no early warning systems. Starting today, the program that launched in California last year will also be available in Greece and New Zealand. This also marks a new step for Google; it’s the first time the company will handle everything from detecting the earthquake to warning individuals. Android devices will first sense waves generated by quakes. Google then analyzes data from the phones and sends out an early warning alert to users in the affected area. Users will get the alerts automatically unless they opt out of the service.

When Google started on this endeavor, it worked with the United States Geological Survey and the California Governor’s Office of Emergency Services to send earthquake alerts to Android users in California. This feature is now available in Oregon and will expand to Washington in May. Last year, Google started gathering earthquake data from phones. It then used that data to provide information to users if they searched for “earthquake” or “earthquake near me” on their phones. Google’s system works because each phone is already equipped with an accelerometer, which can detect movement. The accelerometer can also detect primary and secondary earthquake waves, almost acting as a mini seismometer, joining millions of other Android phones out there to form the world’s largest earthquake detection network.



Credits:
https://www.theverge.com/2021/4/28/22407676/google-expands-android-earthquake-detection-system

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