A5103060252- earthquake and tectonic studies
- Seismic Waves and Analysis
- Seismic Imaging and Inversion Techniques
- Seismology and Earthquake Studies
- High-pressure geophysics and materials
- Earthquake Detection and Analysis
- Geological and Geochemical Analysis
- Seismic Performance and Analysis
- Geophysics and Sensor Technology
- Geophysics and Gravity Measurements
- Landslides and related hazards
- Methane Hydrates and Related Phenomena
- Complex Systems and Time Series Analysis
- Geophysical and Geoelectrical Methods
- Urban Planning and Valuation
- Structural Health Monitoring Techniques
- Meteorological Phenomena and Simulations
- Hydraulic Fracturing and Reservoir Analysis
- Blind Source Separation Techniques
- Geophysical Methods and Applications
- Plant and animal studies
- Nuclear Physics and Applications
- Financial Risk and Volatility Modeling
- GNSS positioning and interference
- Rock Mechanics and Modeling
University of Salerno
2011-2023
Oxfam
2023
Liechtenstein Institute
2023
John Wiley & Sons (United States)
2023
Urological Society of Australia and New Zealand
2023
Consorzio Interuniversitario Nazionale per la Bio-Oncologia
2021
Istituto Nazionale di Geofisica e Vulcanologia
1997-2009
Carnegie Institution for Science
2009
INGV Osservatorio Vesuviano
1978-2007
Consorzio Venezia Ricerche
1976-2007
Seismic data recorded in the 2–30 s band at Stromboli Volcano, Italy, are analyzed to quantify source mechanisms of Strombolian explosions during September 1997. To determine source‐centroid location and mechanism, we minimize residual error between synthetics calculated by finite difference method for a point embedded homogeneous elastic medium that takes topography into account. Two centroids identified, each representative distinct event types associated with explosive eruptions from two...
The wave fields generated by Strombolian activity are investigated using data from small‐aperture seismic arrays deployed on the north flank of Stromboli and pressure transducers set up near summit crater. Measurements slowness azimuth as a function time clearly indicate that sources tremor explosions located beneath crater at depths shallower than 200 m with occasional bursts energy originating extending to depth 3 km. Slowness, azimuth, particle motion measurements reveal complex...
New fault trace mapping and structural survey of the active faults outcropping within epicentral area Campania-Lucania 1980 normal earthquake (M w 6.9) are integrated with a revision pre-existing data an updated interpretation CROP-04 near-vertical seismic profile to reconstruct surface depth geometry, kinematics stress tensor seismogenic pattern. Three main alignments, organized in high-angle en-echelon segments several kilometers length, identified characterized. The inner intermediate...
Abstract The properties of the tremor wave field at Stromboli are analyzed using data from small-aperture arrays short-period seismometers deployed on north flank volcano. configured in two semi-circular with radii 60 and 150 m a linear array length 600 m. spatiotemporal correlation technique specifically designed for study stationary stochastic Rayleigh Love waves generated by volcanic activity scattering sources distributed within island. coefficients derived as function frequency three...
During September–October 1997, 21 three‐component broadband seismometers were deployed on Stromboli Volcano at radial distances of 0.3–2.2 km from the active crater to investigate source mechanisms Strombolian explosions. In 2–50 s band, very‐long period (VLP) signals associated with explosions are consistent two stationary sources repeatedly activated in time. VLP particle motions essentially linear and analyses semblance a centroid offset 300 m beneath northwest vents. Similar waveforms...
[1] In the article “Source mechanisms of explosions at Stromboli Volcano, Italy, determined from moment-tensor inversions very-long-period data” by B. Chouet, P. Dawson, T. Ohminato, M. Martini, G. Saccorotti, F. Guidicepietro, De Luca, Milana, and R. Scarpa, a typographical error occurred in second sentence paragraph [20]. The notation q should have been ,q so that correct is “The indicates spatial differentiation with respect to q-coordinate symbol * denotes convolution.”
The caldera at Campi Flegrei underwent an inflationary episode during 1982–84 that produced a maximum uplift of 1.6 m Pozzuoli, Italy. seismicity Pozzuoli increased enormously the time uplift, but was delayed by several months. Ground deformation inflation has been previously well modelled with finite element model pressurized magma chamber in elastic medium takes into account effects increasing pressure and temperature depth on elasticity. We used output from this to estimate temporal...
We carry out a nonlinear joint inversion of P wave first‐motion polarities and coseismic surface displacement data the 1908 Messina earthquake. model earthquake using single planar fault: Slip is at first assumed to be uniform across whole fault, then independent in small set coplanar subfaults, finally smoothly variable fault. The two steps are accomplished global minimization technique. main features retrieved very robust seismic velocity profile, presence questionable bench marks,...
abstract The seismic activity associated with the catastrophic southern Italy earthquake was monitored by 11 stations operating before this event, within an epicentral distance of 200 km, and 32 additional short-period seismometers installed soon after main shock. hypocenter event located at 40°46′N 15°18′E, 16 km depth. fault-plane solution reveals normal faulting, tensile axis dipping 18° oriented orthogonal to Apennines chain. This mechanism is in good agreement stress pattern inferred...
Regions of slow strain often produce swarm-like sequences, characterized by the lack a clear mainshock-aftershock pattern. The comprehension their underlying physical mechanisms is challenging and still debated. We used seismic recordings from last Pollino swarm (2010–2014) nearby to separate map scattering (from P peak-delays) absorption late-time coda-wave attenuation) at different frequencies in range surroundings. High-scattering high-absorption anomalies are markers fluid-filled...
The three‐dimensional P ‐wave velocity structure of Mt. Etna is determined to depths 15 km by tomographic inversion first arrival times from local earthquakes recorded a network 29 permanent and temporary seismographs. Results show near‐vertical low‐velocity zone that extends beneath the central craters depth 10 km. This region coincident with band steeply‐dipping seismicity, suggesting magmatic conduit feeds summit eruptions. most prominent an approximately 8‐km‐diameter high‐velocity body...
Abstract The 28 December 1908 Messina earthquake was a normal faulting event, which produced considerable vertical displacements. Three levelling surveys, having an overall extension of 125 km in Calabria and Sicily, were performed by the IGMI (Italian Military Geographical Institute) shortly before occurrence main event during first months 1909. Vertical subsidence up to 70 cm measured, at bench marks located close Messina. inversion observed displacements has been using model consisting...
The Campi Flegrei caldera, Italy, is considered one of the most high-risk volcanic areas on planet due to its location within metropolitan area Naples. caldera currently undergoing unrest. unrest linked an uplift phase that started in 2005, which accompanied by gas emissions and volcano-tectonic seismicity. Owing limited knowledge plumbing system pre-eruptive processes, tracking evolution a often based probabilities obtained experts’ elicitation. In this work, we present daily variation...
Several clustered slow earthquakes have been recorded by a geodetic interferometer in central Italy. The strain rise times of the events range from tens to thousands seconds, and seismic moment scales with square root time. This scaling law contrasts conservative assumption constant rupture velocity fault modeling but is consistent occurrence propagation analogous heat diffusion slab.
We use a nonlinear inversion approach for determining source parameters of the Fucino M s =6.9 earthquake that occurred along central Apennines, Italy, in 1915, taking into account both near‐field surface deformations and far‐field first‐motion polarities. This event was one most destructive Italy this century, causing over 30,000 casualties. Altitude leveling measurements were performed before (1862) after (1917) event, circular route consisting 18 benchmarks. Polarities first arrivals do...
A high resolution P‐wave image of Mt. Vesuvius edifice has been derived from simultaneous inversion travel times and hypocentral parameters local earthquakes, land based shots small aperture array data. The results give details down to 300–500 m. relocated seismicity appears extend 5 km below the central crater, distributed in a major cluster, centered at 3 crater minor group, with diffuse hypocenters inside volcanic edifice. two clusters are separated by an anomalously Vp region around 1...
Abstract In March 2010 two borehole strainmeters and three Michelson tiltmeters within the Campi Flegrei volcanic system, Italy, registered an abrupt deformation signal that was followed 20 min later by seismic slip on a pair of onshore normal faults. We demonstrate observed strain changes were caused small but rapid volume decrease in previously identified offshore ellipsoidal magma source or part it. Although total deflation below detectability interferometric synthetic aperture radar GPS,...