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Articles | Volume 12, issue 10
Articles | Volume 12, issue 10
https://doi.org/10.5194/se-12-2127-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/se-12-2127-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 12, issue 10
Research article
 | 
30 Sep 2021
Research article |  | 30 Sep 2021

COVID-19 lockdown effects on the seismic recordings in Central America

Mario Arroyo-Solórzano, Diego Castro-Rojas, Frédérick Massin, Lepolt Linkimer, Ivonne Arroyo, and Robin Yani

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Subject area: Tectonic plate interactions, magma genesis, and lithosphere deformation at all scales | Editorial team: Seismics, seismology, paleoseismology, geoelectrics, and electromagnetics | Discipline: Seismology
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Cited articles

Adamek, S., Frohlich, C., and Pennington, W.: Seismicity of the Caribbean-Nazca Boundary: Constraints on Microplate Tectonics of the Panama Region, J. Geophys. Res., 93, 2053–2075, https://doi.org/10.1029/JB093iB03p02053, 1998. 
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Arroyo-Solórzano, M. and Linkimer, L.: Spatial variability of the b-value and seismic potential in Costa Rica, Tectonophysics, 814, 228951, https://doi.org/10.1016/j.tecto.2021.228951, 2021. 
Ashenden, C., Lindsay, J., Sherburn, S., Smith, I., Miller, C., and Malin, P.: Some challenges of monitoring a potentially active volcanic field in a large urban area: Auckland volcanic field, New Zealand, Nat. Hazards, 59, 507–528, https://doi.org/10.1007/s11069-011-9773-0, 2011. 
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We present the first seismic noise variation levels during COVID-19 in Central America using 10 seismometers. We study the impact of the seismic noise reduction on the detectability of earthquakes and on the felt reports. Our results show maximum values (~50 % decrease) at seismic stations near airports and densely inhabited cities. The decrease in seismic noise improved earthquake locations and reports. Seismic noise could also be useful to verify compliance with lockdown measures.
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Social seismology – the effect of COVID-19 lockdown measures...