Google added an earthquake alert system in California on Tuesday, saying it is working on letting Android-powered smartphones double as tremor detectors.

Android phones will receive warnings triggered by a “ShakeAlert” earthquake early-warning system implemented on the West Coast by the US Geological Survey and partners.

ShakeAlert uses signals from hundreds of seismometers across the state to trigger warning messages that “an earthquake has begun and shaking is imminent,” according to the system’s website.

“We saw an opportunity to use Android to provide people with timely, helpful earthquake information when they search, as well as a few seconds warning to get themselves and their loved ones to safety if needed,” principal software engineer Marc Stogaitis said in a blog post.

People anywhere with smartphones powered by Google’s Android operating software were also invited to let handsets be part of a crowd-sourced network for detecting earthquakes.

Smartphones are typically equipped with tiny accelerometers that sense movement and can catch shaking caused by earthquakes, according to Stogaitis. “This means your Android phone can be a mini seismometer, joining millions of other Android phones out there to form the world’s largest earthquake detection network,” Stogaitis said.

Phones that detect what might be earthquake activity can automatically send a signal to a data centre, where computers quickly determine whether a quake is happening, according to Google.