Articles | Volume 12, issue 2
https://doi.org/10.5194/se-12-299-2021
https://doi.org/10.5194/se-12-299-2021
Research article
 | 
02 Feb 2021
Research article |  | 02 Feb 2021

Seismic evidence of the COVID-19 lockdown measures: a case study from eastern Sicily (Italy)

Andrea Cannata, Flavio Cannavò, Giuseppe Di Grazia, Marco Aliotta, Carmelo Cassisi, Raphael S. M. De Plaen, Stefano Gresta, Thomas Lecocq, Placido Montalto, and Mariangela Sciotto

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Cited articles

Anthony, R. E., Aster, R. C., and McGrath, D.: Links between atmosphere, ocean, and cryosphere from two decades of microseism observations on the Antarctic Peninsula, J. Geophys. Res.-Earth Surf., 122, 153–166, https://doi.org/10.1002/2016JF004098, 2017. 
Apple: Mobility Trends Reports, available at: https://www.apple.com/covid19/mobility (last access: 05 June 2020), 2020. 
Ardhuin, F., Gualtieri, L., and Stutzmann, E.: How ocean waves rock the Earth: Two mechanisms explain microseisms with periods 3 to 300 s, Geophys. Res. Lett., 42, 765–772, https://doi.org/10.1002/2014GL062782, 2015. 
Beauducel, F.: READHGT: Import/download NASA SRTM data files (HGT), MATLAB Central File Exchange, available at: https://www.mathworks.com/matlabcentral/fileexchange/36379-readhgt-import-download-nasa-srtm-data-files-hgt (last access: 26 January 2021), 2020. 
Bormann, P. and Wielandt, E.: Seismic signals and noise, in: New Manual of Seismological Observatory Practice 2 (NMSOP2), 2nd edn., edited by: Bormann, P., GFZ, Potsdam, Germany, 1–62, 2013. 
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Short summary
During the COVID-19 pandemic, most countries put in place social interventions, aimed at restricting human mobility, which caused a decrease in the seismic noise, generated by human activities and called anthropogenic seismic noise. In densely populated eastern Sicily, we observed a decrease in the seismic noise amplitude reaching 50 %. We found similarities between the temporal patterns of seismic noise and human mobility, as quantified by mobile-phone-derived data and ship traffic data.