Professors Jeroen Ritsema and Ben van der Pluijm of the University of Michigan Department of Earth and Environmental Sciences are using a portable digital seismometer in the football stadium, and one on U-M’s Central Campus, to study the reduction in ground-motion noise following the cancellation of in-person U-M classes March 11 and the Michigan governor’s March 23 stay-at-home executive order, which took effect the following day.

Image credit: U-M Department of Earth and Environmental Sciences, Thomas Lecocq, Frederick Massin, and Paula Koelemeijer

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