The recent trend of people wearing fitness trackers and other technology that tracks activity and sleep patterns can give us some really cool data when it comes to events, such as the earthquake that hit Northern California early Sunday morning.

This graph, provided by Jawbone UP, which determines how well people sleep by measuring tossing and turning, aggregated data from UP users based on proximity to the epicenter of the quake, in order to visualize thousands of people waking up at once when the Napa quake hit.

While it’s not exactly an earth-shaking discovery to know that an earthquake woke people up (pun absolutely intended) and scared the pants off of them, it’s really interesting to see how new, wearable technology can provide us with data about a shared, naturally-occurring experience, and can give us new insight about how people actually reacted to a natural disaster/occurrence. It’s cool to see how people actually reacted to this earthquake, rather than the self-reported data people can provide about the quake to the U.S. Geological Survey website, which is fallible.

[via Wired]