The South Napa Earthquake—the strongest in Northern California in the last quarter-century—was quite a shake up. And for many, it was also quite the wake up, since it struck at 3:20 a.m. Pacific time.
But for how many? To answer that question, the data scientists at the wearables company Jawbone turned to its UP users. Jawbone’s website describes UP as “a revolutionary system that guides you every step of the way to a better, healthier you” by tracking diet, exercise—and sleep. Jawbone turned to its sleep-tracking UP users to find out how, exactly, the earthquake affected sleep.
They found that while hardly any users between 75 and 100 miles from the epicenter awoke, 55 percent of those in Oakland and San Francisco did. And in Napa, Sonoma, Vallejo, and Fairfield, 93 percent of users were shaken awake when the earthquake hit—and 45 percent of them were awake for the rest of the night. Sweet dreams are not made of this.
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