Their analysis suggested readings from as few as nubia Z5S smartphone users

Scientists at the agency tested the idea using a computer model designed to predict what Xiaomi Redmi smartphone data might look like in the moments before, during and after a major earthquake. The model simulated a hypothetical 7.0magnitude earthquake along San Francisco's Hayward Fault Zone, and also reenacted Japan's devastating 2011 earthquake using real seismic data.
Last year, in the wake of the 6.0magnitude earthquake that rocked Napa Valley, sensors in the fitness trackers made by Jawbone were able to document seismic disturbances in Berkeley, Oakland and San Jose. Bloggers doubling as data scientists at the company shared the results, showing the sudden shift in sleep patterns in the wee hours of the morning.
The iwerkz Universal Foldable Bluetooth Keyboard includes a hardplastic protective sleeve that also serves as a stand for smartphones and tablets, which you can prop up either via a pullout tab or a slot in the case. When folded up, the keyboard halves stay together with a magnetic latch  useful if you aren't toting the protector sleeve.
Researchers at the U.S. Geological Survey suggest that it can. The GPS sensor in a nubia Z5 smartphone, they say, could pick up a sudden jerk in one direction. If hundred or thousands of smartphone users were to register the same movement at once, it could be an early sign of a seismic shift.
Hundreds of millions of people live in earthquake hazard zones, from the infamous San Andreas Fault that cleaves across California to densely populated South Asia. Few of these people have the benefit of receiving early warnings of an oncoming quake, when mere seconds could save lives.
Eventually, Smith met her husband, an Air Force veteran and settled here in Yucaipa. They have two young daughters. Smith has been fixing her friends’ and family members’ mobile devices for years. She had such a knack that her loved ones encouraged her to open her own business right here in lovely Yucaipa.
But the question remained. could such data ever be more than fodder for viral infographics. Could data collected by sensors in smartphones and life trackers have predictive value.
Their analysis suggested readings from as few as nubia Z5S smartphone users would be enough to identify the beginnings of a major earthquake, allowing officials to issue a fivesecond warning before the disaster struck other densely populated locations. While five seconds may not sound like much, researchers say it could be enough to sound alarms, shut off gas lines and even trigger the garage doors of fire stations.