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A comment on A Cheap, Ubiquitous Earthquake Warning System. Parent comment
http://news.sciencemag.org/earth/2015/04/smart-phones-could-...
I would guess that there are enough phones plugged in at any given moment, even during the day, to provide a large enough sample size. Especially if that were paired with other data sources.
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http://news.sciencemag.org/earth/2015/04/smart-phones-could-...
I would guess that there are enough phones plugged in at any given moment, even during the day, to provide a large enough sample size. Especially if that were paired with other data sources.