Earthquake prediction using accelerometers in laptops
A scientist in California is trying to recruit thousands of people to build a volunteer early warning system by harnessing technology in laptops.
Motion sensors already fitted in computers are being used as seismographs.
The hope is a large network of quake sensors could one day help give warning of impending tremors, as Rajesh Mirchandani reports from California.
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Anyone else in Cali getting a bunch of earthquake warnings on twitter/facebook?