Statistics of seismicity to investigate the Campi Flegrei caldera unrest

Abstract The knowledge of the dynamic of the Campi Flegrei calderic system is a primary goal to mitigate the volcanic risk in one of the most densely populated volcanic areas in the world. From 1950 to 1990 Campi Flegrei suffered three bradyseismic crises with a total uplift of 4.3 m. After 20 years...

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Autores principales:	A. Tramelli, C. Godano, P. Ricciolino, F. Giudicepietro, S. Caliro, M. Orazi, P. De Martino, G. Chiodini
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/62d2614ef61b42d48c7d856aa373d54f
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spelling	oai:doaj.org-article:62d2614ef61b42d48c7d856aa373d54f2021-12-02T13:26:24ZStatistics of seismicity to investigate the Campi Flegrei caldera unrest10.1038/s41598-021-86506-62045-2322https://doaj.org/article/62d2614ef61b42d48c7d856aa373d54f2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86506-6https://doaj.org/toc/2045-2322Abstract The knowledge of the dynamic of the Campi Flegrei calderic system is a primary goal to mitigate the volcanic risk in one of the most densely populated volcanic areas in the world. From 1950 to 1990 Campi Flegrei suffered three bradyseismic crises with a total uplift of 4.3 m. After 20 years of subsidence, the uplift started again in 2005 accompained by a low increment of the seismicity rate. In 2012 an increment in the seismic energy release and a variation in the gas composition of the fumaroles of Solfatara (in the central area of the caldera) were recorded. Since then, a slow and progressive increase in phenomena continued until today. We analyze the INGV - Osservatorio Vesuviano seismic catalogue of Campi Flegrei from 2000 to 2020 in order to look for any variation in the seismic parameters and compare them with geochemical monitored ones. A remarkable correlation between independent variables of earthquake cumulative number, CO/CO2 values and vertical ground deformation reveals a likely common origin. Moreover the correlation between all the variables here analysed enlightens that the same origin can cause the temporal behavior of all these variables. We interpret the seismological, geochemical and geodetic observable in terms of the injection of magmatic fluids into the hydrothermal system or its pressurization.A. TramelliC. GodanoP. RicciolinoF. GiudicepietroS. CaliroM. OraziP. De MartinoG. ChiodiniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q A. Tramelli C. Godano P. Ricciolino F. Giudicepietro S. Caliro M. Orazi P. De Martino G. Chiodini Statistics of seismicity to investigate the Campi Flegrei caldera unrest
description	Abstract The knowledge of the dynamic of the Campi Flegrei calderic system is a primary goal to mitigate the volcanic risk in one of the most densely populated volcanic areas in the world. From 1950 to 1990 Campi Flegrei suffered three bradyseismic crises with a total uplift of 4.3 m. After 20 years of subsidence, the uplift started again in 2005 accompained by a low increment of the seismicity rate. In 2012 an increment in the seismic energy release and a variation in the gas composition of the fumaroles of Solfatara (in the central area of the caldera) were recorded. Since then, a slow and progressive increase in phenomena continued until today. We analyze the INGV - Osservatorio Vesuviano seismic catalogue of Campi Flegrei from 2000 to 2020 in order to look for any variation in the seismic parameters and compare them with geochemical monitored ones. A remarkable correlation between independent variables of earthquake cumulative number, CO/CO2 values and vertical ground deformation reveals a likely common origin. Moreover the correlation between all the variables here analysed enlightens that the same origin can cause the temporal behavior of all these variables. We interpret the seismological, geochemical and geodetic observable in terms of the injection of magmatic fluids into the hydrothermal system or its pressurization.
format	article
author	A. Tramelli C. Godano P. Ricciolino F. Giudicepietro S. Caliro M. Orazi P. De Martino G. Chiodini
author_facet	A. Tramelli C. Godano P. Ricciolino F. Giudicepietro S. Caliro M. Orazi P. De Martino G. Chiodini
author_sort	A. Tramelli
title	Statistics of seismicity to investigate the Campi Flegrei caldera unrest
title_short	Statistics of seismicity to investigate the Campi Flegrei caldera unrest
title_full	Statistics of seismicity to investigate the Campi Flegrei caldera unrest
title_fullStr	Statistics of seismicity to investigate the Campi Flegrei caldera unrest
title_full_unstemmed	Statistics of seismicity to investigate the Campi Flegrei caldera unrest
title_sort	statistics of seismicity to investigate the campi flegrei caldera unrest
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/62d2614ef61b42d48c7d856aa373d54f
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Statistics of seismicity to investigate the Campi Flegrei caldera unrest

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