Fitness tracker allowed to determine the epicenter of the earthquake

    Fitness trackers like the Jawbone UP24 let you know a lot about the behavior of their owners. And the earnings of the manufacturer can depend not only on the sale of the bracelets themselves, but also on consumer research: as, for example, an analysis of sleep tracking statistics recently helped to understand what time people sleep in large cities, how much time they wake up depends on the metro availability and how much activity rises on the weekend.

    As it turned out, this is not the only use of the bracelet. On the company's website today there was information that the epicenter of the largest earthquake in 25 years in Northern California could be determined from data from many fitness trackers.

    The company's specialists examined how the earthquake affected UP users by analyzing their sleep statistics.

    Napa and the cities of Sonoma, Vallejo, and Fairfield were less than 15 miles from the epicenter. About 93% of UP users in these cities woke up sharply at 3:20 a.m., right at the start of the earthquake. The farther from the epicenter, the more people continued to sleep, despite the tremors. In San Francisco and Oakland, for example, only 55% woke up. In Santa Cruz and Modesto (75 to 100 miles from the epicenter), far fewer people woke up at night.

    It was difficult for those who woke up to return to bed - so 45% of the bracelet owners did not fall asleep anymore that night.

    Jawbone UP24


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