Articles | Volume 12, issue 10
Research article
15 Oct 2021
Research article |  | 15 Oct 2021

The effect of 2020 COVID-19 lockdown measures on seismic noise recorded in Romania

Bogdan Grecu, Felix Borleanu, Alexandru Tiganescu, Natalia Poiata, Raluca Dinescu, and Dragos Tataru

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Cited articles

Apple: COVID-19 Mobility Trend Reports, COVID-19 Mobility Trend Reports, Apple [dataset], available at:, last access: 29 September 2021. 
Boese, C. M., Wotherspoon, L., Alvarez, M., and Malin, P.: Analysis of anthropogenic and natural noise from multilevel borehole seismometers in an urban environment, Auckland, New Zealand, B. Seismol. Soc. Am., 105, 285–299,, 2015. 
Cannata, A., Cannavò, F., Di Grazia, G., Aliotta, M., Cassisi, C., De Plaen, R. S. M., Gresta, S., Lecocq, T., Montalto, P., and Sciotto, M.: Seismic evidence of the COVID-19 lockdown measures: a case study from eastern Sicily (Italy), Solid Earth, 12, 299–317,, 2021. 
Denolle, M. A. and Nissen-Meyer, T.: Quiet Anthropocene, quiet Earth, Science, 369, 1299–1300,, 2020. 
De Plaen, R. S. M., Márquez-Ramírez, V. H., Pérez-Campos, X., Zuñiga, F. R., Rodríguez-Pérez, Q., Gómez González, J. M., and Capra, L.: Seismic signature of the COVID-19 lockdown at the city scale: a case study with low-cost seismometers in the city of Querétaro, Mexico, Solid Earth, 12, 713–724,, 2021. 
Short summary
The lockdown imposed in Romania to prevent the spread of COVID-19 has significantly impacted human activity across the country. By analyzing the ground vibrations recorded at seismic stations, we were able to monitor the changes in human activity before and during the lockdown. The reduced human activity during the lockdown has also provided a good opportunity for stations sited in noisy urban areas to record earthquake signals that would not have been recorded under normal conditions.