As the world quieted down in 2020, Raspberry Shakes listened

By Alka Tripathy-Lang

December 17, 2020

Humble Raspberry Pis helped scientists track the seismic noise people stopped making in 2020.

“It’s the trains!” Ryan Hollister yelled to his wife Laura as he burst into their home in Turlock, California. For two weeks in 2017, they’d been staring at data from their newly installed Raspberry Shake, a Raspberry Pi-powered instrument that detects how the ground moves at a specific location. Expecting to see the tell-tale wiggles of distant earthquakes, they instead saw peculiar cigar-shaped waveforms at regular intervals. “The biggest challenge,” says Laura Hollister, “was the noise.”

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