Response of the Mexican National Seismological Service to Significant Earthquakes, under Normal and COVID-19 Pandemic Circumstances

Pérez‐Campos, Xyoli; Espíndola, Víctor Hugo; Pérez, Jorge Luis Tórtora; Estrada, Jorge Arrese; Monroy, Caridad Cárdenas; Bello, D.; González-López, A.; Ávila, Daniel; Maldonado, Rosa María Martínez; Montoya-Quintanar, E.; Ruiz, Jose Eduardo; Rasilla, Iván Rodríguez; Tan, Yi; Rosas, Miguel Ángel Vela; Jiménez, Miguel; Cruz, Juan Carlos; Cárdenas, Arturo; Estrada, Fernando Navarro; Hurtado, A.; Carvajal, Antonio de Jesús Mendoza; Fabila, Betty Zanolli; Meléndez, H. M. H.; Valdés‐González, C.; Ramirez-Guzmán, L.; Montalvo‐Arrieta, Juan C.

doi:10.1785/0220200301

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…2). The noise level at all stations is mostly within the noise-level model by Peterson (1993) (Pérez-Campos et al, 2018. The exception is a station located within Mexico City, where there is a high noise level at frequencies above 1 Hz (Figs.…”

Section: )mentioning

confidence: 90%

The effect of confinement due to COVID-19 on seismic noise in Mexico

Pérez‐Campos

Espíndola²,

González-Ávila

et al. 2021

Solid Earth

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Abstract. The world experienced the beginning of the COVID-19 pandemic by the end of 2019 to the beginning of 2020. Governments implemented strategies to contain it, most based on lockdowns. Mexico was no exception. The lockdown was initiated in March 2020, and with it, a reduction in the seismic noise level was witnessed by the seismic stations of the national and Valley of Mexico networks. Stations located in municipalities with more than 50 000 people usually experience larger seismic noise levels at frequencies between 1 and 5 Hz, associated with human activity. The largest noise levels are recorded in Mexico City, which has the largest population in the country. The largest drop was observed in Hermosillo, Sonora; however, it was also the city with the fastest return to activities, which seems to correlate with a quick increase in confirmed COVID-19 cases. Mexico initiated a traffic-light system to modulate the re-opening of economic activities for each state. Therefore, since 1 June, noise levels have generally reflected the colour of the state traffic light. Furthermore, the reduction in the noise level at seismic stations has allowed identification of smaller earthquakes without signal processing. Also, people in cities have perceived smaller or more distant quakes.

show abstract

Section: )mentioning

confidence: 90%

The effect of confinement due to COVID-19 on seismic noise in Mexico

Pérez‐Campos

Espíndola²,

González-Ávila

et al. 2021

Solid Earth

Self Cite

View full text Add to dashboard Cite

show abstract

Section: )mentioning

confidence: 90%

The effect of confinement due to COVID-19 on seismic noise in Mexico

Pérez‐Campos¹,

Marquez²,

Quintanar³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

Abstract. The world experienced the beginning of the COVID-19 pandemic by the end of 2019, beginning of 2020. Governments implemented strategies to contain it, most based on lockdowns. Mexico was not the exception. The lockdown was initiated in March 2020 and with it, a reduction on the seismic noise level was witnessed by the seismic stations of the national and the Valley of Mexico networks. Stations located in municipalities with more than 50,000 people usually experience larger seismic noise levels at frequencies between 1 to 5 Hz, associated with human activity. The largest noise levels are recorded in Mexico City, with the largest population in the country. The largest drop was observed in Hermosillo, Sonora, however, it was also the city with the fastest return to activities, which seems to correlate with a quick increase in confirmed COVID-19 cases. Mexico initiated a traffic-light system to modulate the re-opening of economic activities for each state. Therefore, since 1 June, noise levels reflect, in general, the colour of the state traffic light. Furthermore, the reduction in the noise level at seismic stations has allowed identification of smaller earthquakes without signal processing. Also, people in cities have perceived smaller or distant quakes.

show abstract