Google plans to make earthquake detecting network using the active android phones across the world. The company now is planning to use the seismometers in mobile phones, to detect if the earthquake has actually occurred or not. Since our Android phones already have acceleration sensors, these can serve as the mini seismometers. All the smartphones will send the data by backing up to google, this will then be collected and calculated to know about the occurrence of the earthquake. If we talk about the number of smartphones spread across the world, then around 2.5 billion active devices were found on the earth last year.
Read More at Business Insider