Probing environmental and tectonic changes underneath Mexico City with the urban seismic field
Abstract M w M w 7.4 Oaxaca earthquakes both caused a clear drop in seismic velocity, followed by a time-logarithmic recovery that may still be ongoing for the 2017 event at several sites or that may remain incomplete. The slope of the linear trend in seismic velocity is correlated with the downward vertical displacement of the ground measured by interferometric synthetic aperture radar, suggesting a causative relationship and supporting earlier studies on changes in the resonance frequency of sites in the Mexico City basin due to groundwater extraction. Our findings show how sensitively shallow seismic velocity and, in consequence, site effects react to environmental, tectonic and anthropogenic processes. They also demonstrate that urban strong-motion stations provide useful data for coda wave monitoring given sufficiently high-amplitude urban seismic noise.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Probing environmental and tectonic changes underneath Mexico City with the urban seismic field ; volume:14 ; number:5 ; year:2023 ; pages:529-549 ; extent:21
Solid earth ; 14, Heft 5 (2023), 529-549 (gesamt 21)
- Creator
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Ermert, Laura A.
Cabral-Cano, Enrique
Chaussard, Estelle
Solano-Rojas, Darío
Quintanar, Luis
Morales Padilla, Diana
Fernández-Torres, Enrique A.
Denolle, Marine A.
- DOI
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10.5194/se-14-529-2023
- URN
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urn:nbn:de:101:1-2023052504214114188279
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:47 AM CEST
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Associated
- Ermert, Laura A.
- Cabral-Cano, Enrique
- Chaussard, Estelle
- Solano-Rojas, Darío
- Quintanar, Luis
- Morales Padilla, Diana
- Fernández-Torres, Enrique A.
- Denolle, Marine A.
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