Somma Vesuvius volcano: ground deformations from CGPS observations (2001-2012)

Tammaro, Umberto; Martino, Prospero De; Obrizzo, F.; Brandi, Giuseppe; D’Alessandro, A.; Dolce, M.; Malaspina, S.; Serio, C.; Pingue, F.

doi:10.4401/ag-6462

Cited by 18 publications

(9 citation statements)

References 40 publications

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“…(Figure 2). We remark that in 2009 we have connected the leveling network to the GPS 3D vertices of the permanent GPS network of the Neapolitan volcanic area (Figure 2) [Bottiglieri et al 2007, Tammaro et al 2013]. The Vesuvius leveling network consists today of 359 benchmarks, distributed over an area of about 250 km 2 .…”

Section: Vesuvius Area Leveling Network (Valn): Design Installation and Evolutionmentioning

confidence: 99%

Spatial and temporal distribution of vertical ground movements at Mt. Vesuvius in the period 1973-2009

Pingue

Bottiglieri²,

Godano³

et al. 2013

Annals of Geophysics

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<p>Since the early ’70s vertical ground movements at Mount Vesuvius area have been investigated and monitored by the Osservatorio Vesuviano (Isti-tuto Nazionale di Geofisica Vulcanologia - Osservatorio Vesuviano since 2001). This monitoring began with the installation of a high-precision leveling line in the region at medium-high elevations on the volcano. The deformation pattern and expected strain field assessment methods in the volcanic structure induced by inner sources has demanded in subsequent years the expansion of the leveling network up to cover the whole volcanic area, enclosing part of leveling lines of other institutions. As a result of this expansion, the Mt. Vesuvius Area Leveling Network (VALN) has today reached a length of about 270 km and consists of 359 benchmarks. It is configured in 21 circuits and is connected, westward, to the Campi Flegrei leveling network and, northward, to the Campania Plain leveling network. The data collected have been carefully re-analyzed for random and systematic errors and for error propagation along the leveling lines to identify the areas affected by significant ground movements. For each survey, the data were rigorously adjusted and vertical ground movements were evaluated by differentiating the heights calculated by the various measurements conducted by the Osservatorio Vesuviano from 1973 to 2009.</p>

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Section: Vesuvius Area Leveling Network (Valn): Design Installation and Evolutionmentioning

confidence: 99%

Spatial and temporal distribution of vertical ground movements at Mt. Vesuvius in the period 1973-2009

Pingue

Bottiglieri²,

Godano³

et al. 2013

Annals of Geophysics

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“…Every day, 24 hours of observed dual-frequency GPS data, with 30 seconds sampling rate and 15 degrees cut-off angle, are downloaded from each site to the Osservatorio Vesuviano [Tammaro et al 2013]. The data quality have to be quickly and accurately tested before their processing and storage in a database.…”

Section: Data Recordingmentioning

confidence: 99%

“…All the procedures for remote stations managing, raw data downloading, RINEX files generation and data quality control work automatically [Tammaro et al 2013].…”

Section: Data Recordingmentioning

confidence: 99%

“…The estimated IGS08 horizontal components (North and East) of the time series primarily reflect a rigid motion of the Eurasian plate with an average rate of about 2.5 cm/yr in the NE direction. Therefore, to eliminate the global tectonic motion and highlight the volcanic deformation, we define a local reference frame based on the NeVoCGPS reference station ENAV, located on the limestones of Sorrento Peninsula, outside the volcanic area, and with long time span of measurements and constant horizontal velocities [De Martino et al. , Tammaro et al 2013.…”

Section: Gps Time Seriesmentioning

confidence: 99%

“…Continuous geodetic measurements are made using networks of tiltmeters, tide gauges and GPS stations. In particular, the permanent GPS network, called NeVoCGPS (Neapolitan Volcanoes Continuous GPS), provides stations 3D position over time [Bottiglieri et al 2010, Vilardo et al 2010, Tammaro et al 2013.…”

Section: Introductionmentioning

confidence: 99%

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GPS time series at Campi Flegrei caldera (2000-2013)

Martino

Tammaro

Obrizzo

2014

Annals of Geophysics

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<p>The Campi Flegrei caldera is an active volcanic system associated to a high volcanic risk, and represents a well known and peculiar example of ground deformations (bradyseism), characterized by intense uplift periods, followed by subsidence phases with some episodic superimposed mini-uplifts. Ground deformation is an important volcanic precursor, and, its continuous monitoring, is one of the main tool for short time forecast of eruptive activity. This paper provides an overview of the continuous GPS monitoring of the Campi Flegrei caldera from January 2000 to July 2013, including network operations, data recording and processing, and data products. In this period the GPS time series allowed continuous and accurate tracking of ground deformation of the area. Seven main uplift episodes were detected, and during each uplift period, the recurrent horizontal displacement pattern, radial from the “caldera center”, suggests no significant change in deformation source geometry and location occurs. The complete archive of GPS time series at Campi Flegrei area is reported in the Supplementary materials. These data can be usefull for the scientific community in improving the research on Campi Flegrei caldera dynamic and hazard assessment.</p>

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Clues to the cause of the 2011-2013 Campi Flegrei caldera unrest, Italy, from continuous GPS data

Amoruso

Crescentini

Sabbetta

et al. 2014

Geophys. Res. Lett.

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From 2006 to spring 2013, Campi Flegrei (CF) caldera, Italy, was mostly uplifting at an increasing rate, particularly high from 2011. We show that the 2011-2013 accelerated uplift and 1980-2010 inflation and deflation phases can be explained by a two-source conceptual model similar to that proposed by Amoruso et al. (2014) (reference model). However, pressurization of the sole thin quasi-horizontal similar to 4000 m deep source, responsible for large-scale 1980-2010 deformation, can explain the whole 2011-2013 deformation, while activity of the shallower Solfatara hydrothermal source, responsible for residual 1980-2010 deformation, appears constant. These results suggest a predominantly magmatic unrest in 2011-2013. Near-real-time comparison of observations and reference model predictions can provide additional information for short-term eruption forecasting at CF; a similar approach could be followed also in other volcanic environments

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Somma Vesuvius volcano: ground deformations from CGPS observations (2001-2012)

Cited by 18 publications

References 40 publications

Spatial and temporal distribution of vertical ground movements at Mt. Vesuvius in the period 1973-2009

Spatial and temporal distribution of vertical ground movements at Mt. Vesuvius in the period 1973-2009

GPS time series at Campi Flegrei caldera (2000-2013)

Clues to the cause of the 2011-2013 Campi Flegrei caldera unrest, Italy, from continuous GPS data

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