Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/12697
Authors: | Nespoli, Massimo* Todesco, Micol* Serpelloni, Enrico* Belardinelli, Maria Elina* Bonafede, Maurizio* Marcaccio, Marco* Rinaldi, Antonio Pio* Anderlini, Letizia* Gualandi, Adriano* |
Title: | Modeling earthquake effects on groundwater levels: evidences from the 2012 Emilia earthquake (Italy) | Journal: | Geofluids | Series/Report no.: | /16 (2016) | Publisher: | Wiley | Issue Date: | Aug-2016 | DOI: | 10.1111/gfl.12165 | URL: | https://onlinelibrary.wiley.com/doi/10.1111/gfl.12165 | Keywords: | 2012 Emilia earthquake groundwaters isotropic stress permeability porosity water wells |
Subject Classification: | Solid Earth | Abstract: | Changes in water level are commonly reported in regions struck by a seismic event. The sign and amplitude of such changes depend on the relative position of measuring points with respect to the hypocenter, and on the poroelastic properties of the rock. We apply a porous media flow model (TOUGH2) to describe groundwater flow and water‐level changes associated with the first ML5.9 mainshock of the 2012 seismic sequence in Emilia (Italy). We represent the earthquake as an instantaneous pressure step, whose amplitude was inferred from the properties of the seismic source inverted from geodetic data. The results are consistent with the evolution recorded in both deep and shallow water wells in the area and suggest that our description of the seismic event is suitable to capture both timing and magnitude of water‐level changes. We draw some conclusions about the influence of material heterogeneity on the pore pressure evolution, and we show that to reproduce the observed maximum amplitude it is necessary to take into account compaction in the shallow layer. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
GeoFluids2016.pdf | 2.89 MB | Adobe PDF |
WEB OF SCIENCETM
Citations
10
checked on Feb 10, 2021
Page view(s)
563
checked on Apr 17, 2024
Download(s)
2
checked on Apr 17, 2024