A5070263409- earthquake and tectonic studies
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Geological and Geochemical Analysis
- Landslides and related hazards
- Seismology and Earthquake Studies
- Earthquake Detection and Analysis
- Seismic Waves and Analysis
- Geophysics and Gravity Measurements
- High-pressure geophysics and materials
- Geological Modeling and Analysis
- Rock Mechanics and Modeling
- Scientific Computing and Data Management
- Cryospheric studies and observations
- Seismic Imaging and Inversion Techniques
- GNSS positioning and interference
- 3D Surveying and Cultural Heritage
- Research Data Management Practices
- Distributed and Parallel Computing Systems
- Geophysical Methods and Applications
- Data Quality and Management
- Geological and Geophysical Studies
- Geochemistry and Geologic Mapping
- Structural Health Monitoring Techniques
- Seismic Performance and Analysis
- Earthquake and Tsunami Effects
Istituto Nazionale di Geofisica e Vulcanologia
2016-2025
Radiotelevisione Italiana (Italy)
2008-2023
University of Oslo
2022-2023
National Research Council
2022-2023
Istituto di Scienze Marine del Consiglio Nazionale delle Ricerche
2022-2023
Simula Research Laboratory
2023
The Alan Turing Institute
2023
INGV Osservatorio Nazionale Terremoti
2022
Istituto Nazionale di Fisica Nucleare
1992
We define the geometric and kinematic characteristics of fault activated during M w = 6.3, 6 April 2009 L'Aquila earthquake, from modeling Envisat COSMO‐SkyMed (the first ever X‐band interferogram inverted for a coseismic dislocation study) DInSAR interferograms. Our best‐fit solution main shock is represented by normal ∼16 km long ∼12 wide, with small right‐lateral component, dipping 47°SW maximum slip ∼90 cm. Although seismic probably ended at 1 depth, updip projection plane corresponds to...
We investigate a large geodetic data set of interferometric synthetic aperture radar (InSAR) and GPS measurements to determine the source parameters for three main shocks 2016 Central Italy earthquake sequence on 24 August 26 30 October (Mw 6.1, 5.9, 6.5, respectively). Our preferred model is consistent with activation four coseismic asperities belonging SW dipping normal fault system associated Mount Gorzano-Mount Vettore-Mount Bove alignment. Additional slip, equivalent Mw ~ 6.1–6.2...
The 2011 Tohoku earthquake (Mw = 9.1) highlighted previously unobserved features for megathrust events, such as the large slip in a relatively limited area and shallow rupture propagation. We use Finite Element Model (FEM), taking into account 3D geometrical structural complexities up to trench zone perform joint inversion of tsunami geodetic data retrieve distribution. obtain close spatial correlation between main deep patch local seismic velocity anomalies extending also North coherently...
We investigate the 2004–2006 uplift phase of Campi Flegrei caldera (Italy) by exploiting archive ascending and descending ENVISAT SAR data acquired from November 2002 to 2006. The SBAS‐DInSAR technique is applied generate displacement mean velocity maps time series. An appropriate post‐processing step subsequently map areas whose temporal deformation behavior correlated with that maximum zone. Our results show also extends outside volcanological limits Neapolitan Yellow Tuff caldera, without...
The 2010–2011 Canterbury sequence is a complex system of seismic events that started with M w 7.1 earthquake and continued large aftershocks dramatic consequences, particularly for the city Christchurch. We model main earthquakes using InSAR data, providing displacement maps respective modeling September 4th, 2010, February 22nd, 2011 June 13th, events. Relocated aftershocks, field GPS surveys are used to constrain models obtained by inversion data; fault slip distribution retrieved variable...
Research Article| July 01, 2013 Coseismic Deformation and Source Modeling of the May 2012 Emilia (Northern Italy) Earthquakes Giuseppe Pezzo; Pezzo aIstituto Nazionale di Geofisica e Vulcanologia, Centro Terremoti, via Vigna Murata 605, 00143 Roma, Italygiuseppe.pezzo@ingv.it Search for other works by this author on: GSW Google Scholar John Peter Merryman Boncori; Boncori Cristiano Tolomei; Tolomei Stefano Salvi; Salvi Simone Atzori; Atzori Andrea Antonioli; Antonioli Elisa Trasatti;...
[1] Fault slip distribution is usually retrieved from geodetic data assuming that the local crust an elastic, homogeneous and isotropic half-space. In last decades spatially dense (e.g., DInSAR maps) have highlighted complex patterns of coseismic deformation require new modeling tools, such as numerical methods, able to represent rheological geometrical complexities Earth's crust. this work, we develop a procedure perform inversion based on finite element method, accounting for more...
Abstract Campi Flegrei caldera (Italy) was affected by a new unrest phase during 2011–2013. We exploit two COSMO‐SkyMed data sets to map the deformation field, obtaining displacement rates reaching 9 cm/yr in 2012 center. The resulting set is fitted geophysical inversion framework using finite element forward models account for 3‐D heterogeneous medium. best fit model north dipping mixed‐mode dislocation source lying at ~5 km depth. driving mechanism ascribable magma input into of large...
Abstract Transient seismicity at active volcanoes poses a significant risk in addition to eruptive activity. This is powered by the common belief that volcanic cannot be forecast, even on long term. Here we investigate nature of try improve our forecasting capacity. To this aim, consider Ischia volcano (Italy), which suffered similar earthquakes along its uplifted resurgent block. We show marks an acceleration decades‐long subsidence block, driven degassing magma previously produced uplift,...
A full review of the 79 CE Plinian eruption Vesuvius is presented through a multidisciplinary approach, exploiting integration historical, stratigraphic, sedimentological, petrological, geophysical, paleoclimatic, and modelling studies dedicated to this famous devastating natural event. All have critically been reviewed integrated with original data, spanning from proximal ultradistal findings products throughout Mediterranean. The work not only combines different investigation approaches...
The 2011 Tohoku earthquake produced an unexpected large amount of shallow slip greatly contributing to the ensuing tsunami. How frequent are such events? can they be efficiently modelled for tsunami hazard? Stochastic models, which computed rapidly, used explore natural variability; however, generally do not deal specifically with features. We study systematic depth-dependence along a thrust fault number 2D dynamic simulations using stochastic shear stress distributions and geometry based on...
Abstract Unrest began in July 2021 at Askja volcano the Northern Volcanic Zone (NVZ) of Iceland. Its most recent eruption, 1961, was predominantly effusive and produced ∼0.1 km 3 lava field. The last plinian eruption occurred 1875. Geodetic measurements between 1983 detail subsidence Askja, decaying an exponential manner. At end 2021, inflation detected volcano, from GNSS observations Sentinel‐1 interferograms. inflationary episode can be divided into two periods onset until September 2023....
Vulcano is a composite volcanic edifice representing the southernmost emerged island of Aeolian archipelago (Tyrrhenian Sea, Italy). Grown at convergence Africa and Eurasian plates, part complex volcano-tectonic system characterized by NNW-SSE fault which controls volcanism evolution central branch its continuous long-term deformation. experienced many eruption episodes in historical times, most recent occurred 1888-1890. Since then, it has undergone repeated phases unrest shallow...
Since 1993, geodetic data obtained by different techniques (GPS, EDM, SAR, levelling) have detected a consistent inflation of the Mt. Etna volcano. The inflation, culminating with 1998-2001 strong explosive activity from summit craters and recent 2001 2002 flank eruptions, is interpreted in terms magma ascent refilling volcanic plumbing system reservoirs. We modelled 1993-1997 EDM GPS 3-D pressurized sources to infer position dimension reservoir. performed analytical inversions observed...
Volcanic history of Santorini over recent years records a seismo-volcanic unrest in 2011–12 with non-eruptive behavior. The volcano deformation state following the was investigated through multi-sensor Synthetic Aperture Radar Interferometry (InSAR) time series. We focused on analysis Copernicus Sentinel-1, Radarsat-2 and TerraSAR-X Multi-temporal SAR Interferometric (MT-InSAR) results, for post-unrest period 2012–17. Data from multiple Sentinel-1 tracks acquisition geometries were used to...
We assess about 20 years of onshore and offshore subsidence along a sector the Upper Adriatic Sea (Italy) coastal areas affected by natural soil compaction intense anthropogenic activities such as aquifers exploitation hydrocarbons extraction. Our approach is based on synergistic use independent remote sensing in-situ geodetic data to detect spatially characterise deformation pattern cross-validating different available measurements. collect extensive datasets from i) SAR images provided...
Calderas often experience prolonged periods of unrest that are challenging to attribute magmatic or hydrothermal origins, making it critical develop a clear picture these dynamics. The Campi Flegrei caldera (CFc), in southern Italy, is striking example. Since 2005, the has been undergoing its most recent phase unrest, marked by increased ground uplift, seismicity and activity, nature which remains under debate. Understanding past ongoing behaviour this volcanic system far from trivial, yet...
Abstract Calderas often experience extended periods of unrest that are challenging to relate a magmatic or hydrothermal origin, making it crucial assemble clear picture these dynamics. Since 2005, Campi Flegrei caldera (Italy) has experienced accelerating ground uplift, seismicity rates, and degassing. Here we conduct petrological 4D X‐ray microtomography investigations on cored rocks from ∼3 km deep geothermal well located near the center caldera, complemented by 3D high‐resolution seismic...
The interpretation of geodetic data in volcanic areas is usually based on analytical deformation models. Although numerical finite element (FE) modelling allows realistic features such as topography and crustal heterogeneities to be included, the technique not computationally convenient for solving inverse problems using classical methods. In this paper, we develop a general tool perform inversions by means 3-D FE forward model library displacement solutions, where each entry surface due...
A destructive (Mw 7.9) earthquake affected the Sichuan province (China) on May 12, 2008. The seismic event ruptured approximately 270 km of Yingxiu-Beichuan fault and about 70 Guanxian-Anxian fault. Surface effects were suffered over a wide epicentral area (about 300 E-W 250 N-S). We apply differential synthetic aperture radar interferometry (DInSAR) technique to detect measure surface displacement field, using set ALOS-PALSAR L-band SAR images. combine an unprecedented high number data (25...