Clues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)

Abstract The inter-arrival times of the post 2000 seismicity at Campi Flegrei caldera are statistically distributed into different populations. The low inter-arrival times population represents swarm events, while the high inter-arrival times population marks background seismicity. Here, we show tha...

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Autores principales:	G. Chiodini, J. Selva, E. Del Pezzo, D. Marsan, L. De Siena, L. D’Auria, F. Bianco, S. Caliro, P. De Martino, P. Ricciolino, Z. Petrillo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f4220364ad63498badbc65def47d2a8a
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spelling	oai:doaj.org-article:f4220364ad63498badbc65def47d2a8a2021-12-02T15:05:59ZClues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)10.1038/s41598-017-04845-92045-2322https://doaj.org/article/f4220364ad63498badbc65def47d2a8a2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04845-9https://doaj.org/toc/2045-2322Abstract The inter-arrival times of the post 2000 seismicity at Campi Flegrei caldera are statistically distributed into different populations. The low inter-arrival times population represents swarm events, while the high inter-arrival times population marks background seismicity. Here, we show that the background seismicity is increasing at the same rate of (1) the ground uplift and (2) the concentration of the fumarolic gas specie more sensitive to temperature. The seismic temporal increase is strongly correlated with the results of recent simulations, modelling injection of magmatic fluids in the Campi Flegrei hydrothermal system. These concurrent variations point to a unique process of temperature-pressure increase of the hydrothermal system controlling geophysical and geochemical signals at the caldera. Our results thus show that the occurrence of background seismicity is an excellent parameter to monitor the current unrest of the caldera.G. ChiodiniJ. SelvaE. Del PezzoD. MarsanL. De SienaL. D’AuriaF. BiancoS. CaliroP. De MartinoP. RicciolinoZ. PetrilloNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q G. Chiodini J. Selva E. Del Pezzo D. Marsan L. De Siena L. D’Auria F. Bianco S. Caliro P. De Martino P. Ricciolino Z. Petrillo Clues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)
description	Abstract The inter-arrival times of the post 2000 seismicity at Campi Flegrei caldera are statistically distributed into different populations. The low inter-arrival times population represents swarm events, while the high inter-arrival times population marks background seismicity. Here, we show that the background seismicity is increasing at the same rate of (1) the ground uplift and (2) the concentration of the fumarolic gas specie more sensitive to temperature. The seismic temporal increase is strongly correlated with the results of recent simulations, modelling injection of magmatic fluids in the Campi Flegrei hydrothermal system. These concurrent variations point to a unique process of temperature-pressure increase of the hydrothermal system controlling geophysical and geochemical signals at the caldera. Our results thus show that the occurrence of background seismicity is an excellent parameter to monitor the current unrest of the caldera.
format	article
author	G. Chiodini J. Selva E. Del Pezzo D. Marsan L. De Siena L. D’Auria F. Bianco S. Caliro P. De Martino P. Ricciolino Z. Petrillo
author_facet	G. Chiodini J. Selva E. Del Pezzo D. Marsan L. De Siena L. D’Auria F. Bianco S. Caliro P. De Martino P. Ricciolino Z. Petrillo
author_sort	G. Chiodini
title	Clues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)
title_short	Clues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)
title_full	Clues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)
title_fullStr	Clues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)
title_full_unstemmed	Clues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)
title_sort	clues on the origin of post-2000 earthquakes at campi flegrei caldera (italy)
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f4220364ad63498badbc65def47d2a8a
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Clues on the origin of post-2000 earthquakes at Campi Flegrei caldera (Italy)

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