A Seismic Monitoring Tool for Tidal-Forced Aquifer Level Changes in the Río de la Plata Coastal Plain, Argentina

Ambient seismic noise has gained extensive applications in seismology and plays a pivotal role in environmental seismic studies. This study focuses on the Río de la Plata Coastal Plain, employing the horizontal-to-vertical spectral ratio (HVSR) method on ambient seismic noise records to analyze subs...

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Bibliographic Details
Published in:Sustainability 2024-02, Vol.16 (4), p.1432
Main Authors: Galone, Luciano, Panzera, Francesco, Colica, Emanuele, Fucks, Enrique, Carol, Eleonora, Cellone, Francisco, Rivero, Lluís, Agius, Matthew R, D’Amico, Sebastiano
Format: Article
Language:English
Subjects:
Aquifers
Coastal plains
Coasts
Estuaries
Global positioning systems
GPS
Groundwater
Management
Plains
Sediments
Seismic waves
Seismology
Velocity
Water
Water, Underground
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Summary:Ambient seismic noise has gained extensive applications in seismology and plays a pivotal role in environmental seismic studies. This study focuses on the Río de la Plata Coastal Plain, employing the horizontal-to-vertical spectral ratio (HVSR) method on ambient seismic noise records to analyze subsurface dynamics. The region’s hydrogeology is complex, featuring partially interconnected coastal aquifers. The HVSR analysis reveals two peaks, with P0 associated with the sediment-basement interface and P1 linked to a shallower stratigraphic discontinuity. Temporal analysis of P1 highlights cyclical patterns correlated with estuarine levels, suggesting a relationship between variations in seismic velocities and tidal dynamics. Comparisons with aquifer data support the hypothesis that tidal variations influence subsurface mechanical properties, impacting the HVSR function. The study hints at the potential of ambient seismic noise analysis as a non-invasive and cost-effective method for studying coastal aquifers and understanding groundwater dynamics. Ongoing research aims to further explore these relationships for enhanced groundwater resource management.
ISSN:2071-1050
2071-1050
DOI:10.3390/su16041432