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A record of changes in the Gran Sasso groundwater before, during and after the 2016 Amatrice earthquake, central Italy
We performed continuous recordings (May 2015 – January 2017) of hydraulic pressure and electrical conductivity of groundwater in the 190 m-long horizontal S13 borehole drilled next to the deep underground laboratories of Gran Sasso (LNGS-INFN), located in the core of the Gran Sasso carbonate aquifer...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6206031/ https://www.ncbi.nlm.nih.gov/pubmed/30374030 http://dx.doi.org/10.1038/s41598-018-34444-1 |
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author | De Luca, Gaetano Di Carlo, Giuseppe Tallini, Marco |
author_facet | De Luca, Gaetano Di Carlo, Giuseppe Tallini, Marco |
author_sort | De Luca, Gaetano |
collection | PubMed |
description | We performed continuous recordings (May 2015 – January 2017) of hydraulic pressure and electrical conductivity of groundwater in the 190 m-long horizontal S13 borehole drilled next to the deep underground laboratories of Gran Sasso (LNGS-INFN), located in the core of the Gran Sasso carbonate aquifer (central Italy) at a distance of about 39 km south-eastward from the 24 August 2016 Amatrice earthquake (6.0 M(w)) epicenter. Using a 3-channel, 24-bit ADC we achieved a sampling rate of groundwater physical properties up to 50 Hz for each channel. We focused on the analysis of data recorded before, during and after the Amatrice earthquake, describing and discussing in detail the evidence for significant hydraulic pressure and electrical conductivity anomalies recorded before the main shock. We identified unambiguous signals in the hydraulic pressure data starting on 19 August, i.e. five days before the 24 August mainshock. A more careful analysis allowed us to detect the inception of a weak change up to 40 days before the Amatrice earthquake and a significant variation in the electrical conductivity data about 60 days before. The data revealed highly dynamic aquifer behaviour associated with the uprising of geogas probably related to the preparation stage of the Amatrice earthquake. |
format | Online Article Text |
id | pubmed-6206031 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-62060312018-11-01 A record of changes in the Gran Sasso groundwater before, during and after the 2016 Amatrice earthquake, central Italy De Luca, Gaetano Di Carlo, Giuseppe Tallini, Marco Sci Rep Article We performed continuous recordings (May 2015 – January 2017) of hydraulic pressure and electrical conductivity of groundwater in the 190 m-long horizontal S13 borehole drilled next to the deep underground laboratories of Gran Sasso (LNGS-INFN), located in the core of the Gran Sasso carbonate aquifer (central Italy) at a distance of about 39 km south-eastward from the 24 August 2016 Amatrice earthquake (6.0 M(w)) epicenter. Using a 3-channel, 24-bit ADC we achieved a sampling rate of groundwater physical properties up to 50 Hz for each channel. We focused on the analysis of data recorded before, during and after the Amatrice earthquake, describing and discussing in detail the evidence for significant hydraulic pressure and electrical conductivity anomalies recorded before the main shock. We identified unambiguous signals in the hydraulic pressure data starting on 19 August, i.e. five days before the 24 August mainshock. A more careful analysis allowed us to detect the inception of a weak change up to 40 days before the Amatrice earthquake and a significant variation in the electrical conductivity data about 60 days before. The data revealed highly dynamic aquifer behaviour associated with the uprising of geogas probably related to the preparation stage of the Amatrice earthquake. Nature Publishing Group UK 2018-10-29 /pmc/articles/PMC6206031/ /pubmed/30374030 http://dx.doi.org/10.1038/s41598-018-34444-1 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article De Luca, Gaetano Di Carlo, Giuseppe Tallini, Marco A record of changes in the Gran Sasso groundwater before, during and after the 2016 Amatrice earthquake, central Italy |
title | A record of changes in the Gran Sasso groundwater before, during and after the 2016 Amatrice earthquake, central Italy |
title_full | A record of changes in the Gran Sasso groundwater before, during and after the 2016 Amatrice earthquake, central Italy |
title_fullStr | A record of changes in the Gran Sasso groundwater before, during and after the 2016 Amatrice earthquake, central Italy |
title_full_unstemmed | A record of changes in the Gran Sasso groundwater before, during and after the 2016 Amatrice earthquake, central Italy |
title_short | A record of changes in the Gran Sasso groundwater before, during and after the 2016 Amatrice earthquake, central Italy |
title_sort | record of changes in the gran sasso groundwater before, during and after the 2016 amatrice earthquake, central italy |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6206031/ https://www.ncbi.nlm.nih.gov/pubmed/30374030 http://dx.doi.org/10.1038/s41598-018-34444-1 |
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