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Magma injection beneath the urban area of Naples: a new mechanism for the 2012-2013 volcanic unrest at Campi Flegrei caldera.

ABSTRACT: We found the first evidence, in the last 30 years, of a renewed magmatic activity at Campi Flegrei caldera from January 2012 to June 2013. The ground deformation, observed through satellite interferometry and GPS measurements, have been interpreted as the effect of the intrusion at shallow depth (3090 ± 138 m) of 0.0042 ± 0.0002 km(3) of magma within a sill. This interrupts about 28 years of dominant hydrothermal activity and occurs in the context of an unrest phase which began in 2005 and within a more general ground uplift that goes on since 1950. This discovery has implications on the evaluation of the volcanic risk and in the volcanic surveillance of this densely populated area.

SUBMITTER: D'Auria L

PROVIDER: S-EPMC4538569 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature

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Magma injection beneath the urban area of Naples: a new mechanism for the 2012-2013 volcanic unrest at Campi Flegrei caldera.

D'Auria Luca L Pepe Susi S Castaldo Raffaele R Giudicepietro Flora F Macedonio Giovanni G Ricciolino Patrizia P Tizzani Pietro P Casu Francesco F Lanari Riccardo R Manzo Mariarosaria M Martini Marcello M Sansosti Eugenio E Zinno Ivana I

Scientific reports 20150817

We found the first evidence, in the last 30 years, of a renewed magmatic activity at Campi Flegrei caldera from January 2012 to June 2013. The ground deformation, observed through satellite interferometry and GPS measurements, have been interpreted as the effect of the intrusion at shallow depth (3090 ± 138 m) of 0.0042 ± 0.0002 km(3) of magma within a sill. This interrupts about 28 years of dominant hydrothermal activity and occurs in the context of an unrest phase which began in 2005 and withi ...[more]

PMID: 26279090

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