A5089452980- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Seismic Waves and Analysis
- Geological and Geophysical Studies Worldwide
- GNSS positioning and interference
- Seismology and Earthquake Studies
- Geophysics and Gravity Measurements
- Earthquake Detection and Analysis
- High-pressure geophysics and materials
- Seismic Imaging and Inversion Techniques
- Geomagnetism and Paleomagnetism Studies
- Seismic Performance and Analysis
- Geology and Paleoclimatology Research
- Meteorological Phenomena and Simulations
- Ionosphere and magnetosphere dynamics
- Landslides and related hazards
- Planetary Science and Exploration
- Geological Formations and Processes Exploration
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Aeolian processes and effects
- Geophysical Methods and Applications
- Urban Heat Island Mitigation
- Archaeological and Historical Studies
- Inertial Sensor and Navigation
- Maritime and Coastal Archaeology
Istituto Nazionale di Geofisica e Vulcanologia
2015-2025
INGV Osservatorio Etneo
2014-2020
Radiotelevisione Italiana (Italy)
2020
Osservatorio Astrofisico di Catania
2020
University of Catania
2008-2009
We present an improved rendition of the geodetic velocity and strain fields in Sicily southern Calabria obtained through analysis 18 years GPS observations from continuous survey station networks. The dense spatial coverage data provides precise quantitative estimates previously established first‐order active kinematic features, including: i) a narrow east‐west‐elongated belt contraction (∼1–1.5 mm/yr) extending offshore northern Ustica to Stromboli across Aeolian Islands; ii)...
In September 2021, the La Fossa crater at Vulcano, in Italy, entered a new phase of unrest. We discuss set monitoring parameters included INGV surveillance network, which closely tracked sequence effects related to crisis. The low-frequency local seismicity sharply increased, while GPS and tiltmeter networks recorded inflation cone, as an effect fluid expansion hydrothermal system. Gravity variations were probably fast processes within shallow sources. anomalies soil CO2 flux, fumarole...
Starting off from a review of previous literature on kinematic models the unstable eastern flank Mt. Etna, we propose new model. The model is based our analysis large quantity multidisciplinary data deriving an extensive and diverse network INGV monitoring devices deployed along slopes volcano. Our had twofold objective: first, investigating origin recently observed slow-slip events Etna; second, defining general for instability this area To end, investigated 2008–2013 period using collected...
Abstract Since 1992, INGV has collected tilt, GNSS (Global Navigation Satellite System) and strainmeter data, for the monitoring of effusive explosive activity Stromboli volcano. In this timespan, ground deformations related to eruptive activity, paroxystic explosions, cycles inflation/deflation many other phenomena volcanological geophysical interest have occurred. The dataset from permanent geodetic networks spans period 1992/2022 with a variable sampling rate, depending on individual...
For decades, many authors have attempted to define the location, geometry and kinematics of causative fault for 1908 December 28, M 7.1 earthquake that struck Messina Straits between Sicily Calabria (southern Italy). The coseismic displacement caused a predominant downwarping small land uplift away from it, which were documented by levelling surveys performed 1 yr before immediately after earthquake. Most source models based on inversion data suggested was low angle, east-dipping blind...
[1] The continuous GPS network operating on Mt. Etna with its 36 stations is currently one of the largest worldwide. aim this evaluation volcanic hazard and modelling active sources. In paper, we propose an in-depth analysis data collected at from May 2008 to December 2010. analyzed period has been divided into four different coherent phases: 1) 14 2008–02 August (deflation entire network); 2) 02 2008–14 June 2009 summit area inflation lower heights); 3) 2009–21 2010 (inflation 4) 21 2010–31...
In volcanology, geodetic data are one of the most important instruments for scientific community interested in modeling physical processes related to magma movements shallow crust. Since end 1980s, GPS surveys and continuous stations have greatly improved possibility measuring such with high time space resolution. However, requires that any external influence on is not directly investigated quantity must be filtered. One major tricky factor determining a deformation field using displacement...
We analyze the kinematic and crustal deformations of Mt. Etna from 2003 to 2008 as imaged by continuous GPS (CGPS) network (Etn@net). Through a careful analysis time series, six coherent phases have been identified, three inflation deflation phases, superimposed on major volcanic edifice since 2001. The inversions velocities enabled: 1) better understanding evolution sources acting beneath volcano; 2) strain rate patterns; 3) delineation potential coupling between observed ground...
Abstract La Fossa Caldera at Vulcano (Italy) has been showing signs of unrest since September 2021. To investigate this phenomenon, we conducted an analysis geodetic and seismological data from July to December In particular, analyzed Multi Temporal Interferometric Synthetic Aperture Radar Global Navigation Satellite System data, a pronounced elliptical uplift signal, which elaborated using analytical source modeling. Additionally, seismic were used identify seismicity associated with...
Abstract The tectonic deformation of the Lipari–Vulcano complex, one most important active volcanic areas Mediterranean region, is studied here through analysis 10 years (1996–2006) GPS data from both three permanent and 13 non‐permanent stations. This area can be considered crucial for understanding interaction between Eurasian African plates in area, and, general, this work emphasizes a methodological approach, already applied other worldwide ( J. Geophys. Res. , 1996, 101 27 957 ; Geodyn....
After a period of mild eruptive activity, Stromboli showed between 2017 and 2018 reawakening phase, with an increase in the activity starting May 2017. The alert level volcano was raised from “green” (base) to “yellow” (attention) on 7 December 2017, small lava overflowed crater rim 15 Between July August monitoring networks recorded nine major explosions, which are serious hazard for because they affect summit area, crowded by tourists. We studied 2017–2018 phase through analysis...
Abstract In December 2018, Etna volcano experienced one of the largest episodes unrest since installation geophysical monitoring networks in 1970. The culminated a short eruption with small volume lava erupted, significant seismic crisis and deformation entire volcanic edifice magnitude never recorded before at Mount Etna. Here we describe evolution 2018 eruptive cycle from analysis geodetic data collected months preceding, during, following intrusion. We model space‐time high‐rate starting...
Open conduit volcanoes like Stromboli can display elusive changes in activity before major eruptive events. Starting on December 2020, volcano displayed an increasing activity, that 19 May 2021 led to a crater-rim collapse, with pyroclastic density currents (PDCs) spread along the barren NW flank, entered sea and ran across it for more than 1 km. This episode was followed by lava flow output from crater rim lasting few hours, another phase of June 2021. These episodes are potentially very...
Abstract We analyze Global Navigation Satellite System (GNSS) and tilt data from the permanent monitoring networks of Etna volcano starting just after 24 December 2018 eruption to an unusual two‐month period deflation in February–March, 2021, which coincided with occurrence 17 lava fountain episodes. Based on changes slope GNSS displacement time series, we divide 7 months into five phases, spanning continued inflation edifice punctuated by short periods effusive strombolian activity (four...
Framed in the current geodynamics of central Mediterranean, Aeolian-Tindari-Letojanni fault system is part a wider NW-SE oriented right-lateral wrench zone which accommodates diverging motion between regional-scale blocks located at southern edge Calabrian Arc. In order to investigate structural architecture and active deformation pattern northern sector this tectonic feature, observations on-land, high very-high resolution seismic reflection profiles, swath bathymetry seismological geodetic...
In this paper we present the main results inferred from GPS data collected between 1998.00 and 2009.78 along northern rim of Hyblean Plateau 9 continuous 23 survey-mode sites. From a geological point view, area is great interest because 1) it represents an important piece collision front Nubia Eurasia 2) very close to biggest European volcano Mount Etna 3) has been hit by strong earthquakes in past (1169 1693) that struggled cities Catania, Siracusa Ragusa provoking tens thousands...
We present the results of analysis GNSS (Global Navigation Satellite System) and InSAR (Interferometric synthetic-aperture radar) data collected in frame a project financed by "Struttura Terremoti" INGV (Istituto Nazionale di Geofisica e Vulcanologia). Combined investigations pointed out for potential seismogenic sources destructive earthquakes recorded southwestern Sicily, including 1968 Belice earthquake sequence that supposed to have destroyed Greek city Selinunte which, according...
Offshore data in the western Ionian Sea indicate that NW–SE-trending dextral shear zone of Alfeo-Etna Fault System turns to N–S direction near coastline, where extensional Timpe is located. Morpho-structural show right-lateral strike-slip faults connect with upper slope volcano, eruptive activity mainly occurs along NE–SW-trending fissures. systems are related ~E–W-trending extension and they seismically active having given rise shallow low-moderate magnitude earthquakes last 150 years. As a...
Abstract Volcanic eruptions are usually preceded by measurable signals of growing unrest, the most evident which increase in seismicity and ground deformation. It is also important to identify precursors a possible renewal volcanic activity distinguish between an eruptive characterized intrusion (with related destructive power) migration magma stored main conduits. The 2005–2006 eruption at Mt. Augustine (Alaska, USA) good example massive magmatic fluids from depth (about 1 km b.s.l.) under...
<p>Since the early 1970s, geodetic networks became a most important tool to monitor present day deformations of volcanic arc Aeolian Islands. The first benchmarks were installed in this region at Lipari and Vulcano Islands number GPS increased time since ’90s. These periodically surveyed frame national international geodynamic projects for Civil Protection programs devoted mitigation hazard. Istituto Nazionale di Geofisica e Vulcanologia (INGV) played fundamental role realization...