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  • 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics  (10)
  • 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology  (8)
  • AGU  (11)
  • Dipartimento della Protezione Civile, Istituto Nazionale di Geofisica e Vulcanologia  (4)
  • Edizioni Libreria Colacchi, L'Aquila, 2007  (2)
  • American Institute of Physics
  • Blackwell Publishing Ltd
  • Nature Publishing Group
  • Wiley
  • 2005-2009  (18)
  • 1945-1949
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Verlag/Herausgeber
Erscheinungszeitraum
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  • 1
    Publikationsdatum: 2020-11-26
    Beschreibung: The Tindari Fault System (southern Tyrrhenian Sea, Italy) is a regional zone of brittle deformation located at the transition between ongoing contractional and extensional crustal compartments and lying above the western edge of a narrow subducting slab. Onshore structural data, an offshore seismic reflection profile, and earthquake data are analyzed to constrain the present geometry of the Tindari Fault System and its tectonic evolution since Neogene, including the present seismicity. Results show that this zone of deformation consists of a broad NNW trending system of faults including sets of right-lateral, left-lateral, and extensional faults as well as early strike-slip faults reworked under late extension. Earthquakes and other neotectonic data provide evidence that the Tindari Fault System is still active in the central and northern sectors and mostly accommodates extensional or rightlateral transtensional displacements on a diffuse array of faults. From these data, a multiphase tectonic history is inferred, including an early phase as a right-lateral strike-slip fault and a late extensional reworking under the influence of the subductionrelated processes, which have led to the formation of the Tyrrhenian back-arc basin. Within the present, regional, geodynamic context, the Tindari Fault System is interpreted as an ongoing accommodation zone between the adjacent contractional and extensional crustal compartments, these tectonic compartments relating to the complex processes of plate convergence occurring in the region. The Tindari Fault System might also be included in an incipient, oblique-extensional, transfer zone linking the ongoing contractional belts in the Calabrian-Ionian and southern Tyrrhenian compartments.
    Beschreibung: Published
    Beschreibung: TC2006
    Beschreibung: reserved
    Schlagwort(e): NONE ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Format: 3563464 bytes
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  • 2
    Publikationsdatum: 2017-04-04
    Beschreibung: We modeled Pnl phases from several moderate magnitude earthquakes in the eastern Mediterranean to test methods and develop path calibrations for determining source parameters. The study region, which extends from the eastern part of the Hellenic arc to the eastern Anatolian fault, is dominated by moderate earthquakes that can produce significant damage. Our results are useful for analyzing regional seismicity as well as seismic hazard, because very few broadband seismic stations are available in the selected area. For the whole region we have obtained a single velocity model characterized by a 30 km thick crust, low upper mantle velocities and a very thin lid overlaying a distinct low velocity layer. Our preferred model proved quite reliable for determining focal mechanism and seismic moment across the entire range of selected paths. The source depth is also well constrained, especially for moderate earthquakes.
    Beschreibung: Published
    Beschreibung: N/A or not JCR
    Beschreibung: reserved
    Schlagwort(e): Body wave propagation ; earthquake parameters ; lithosphere ; upper-mantle ; 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics ; 04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Format: 690519 bytes
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  • 3
    Publikationsdatum: 2017-04-04
    Beschreibung: This study concerns the unstable scarp named Sciara del Fuoco (SDF) at Stromboli volcano, merging geostructural observations, live-cam records in the visible and IR bands, analysis of vertical aerial photographs, and seismic records. These are used to assess morpho-structural changes between 2002 and 2004. The onset of the lava effusion on 28 December, 2002 preceded a gravitational collapse by two days, affecting a wide area of the SDF above and below sea level. We surmise that the collapse enhanced latent instability of the scarp. The 2002–2003 lava flows had a remarkable stabilizing effect on wide portions (〉50%) of the SDF, whilst erosive phenomena continued in the zone not covered by lava. This caused unrelenting regression of the upper landslide scarp toward the summit craters in the form of rockfalls and debris flows. If the crater conduit were involved in the sliding, then a change in eruptive behavior cannot be excluded.
    Beschreibung: Published
    Beschreibung: L09304
    Beschreibung: reserved
    Schlagwort(e): NONE ; 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Format: 3767834 bytes
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  • 4
    facet.materialart.
    Unbekannt
    Dipartimento della Protezione Civile, Istituto Nazionale di Geofisica e Vulcanologia
    Publikationsdatum: 2017-04-04
    Beschreibung: Importanti sconvolgimenti, conseguenti il terremoto di Messina del 26 dicembre 1908, segnarono il paesaggio in una vasta parte della Calabria e della Sicilia, e in modo particolarmente incisivo nell’area delle maggiori distruzioni. Il censimento sistematico di questi effetti mette in evidenza la grande vulnerabilità dell’area dello Stretto, l’assenza di fenomeni interpretabili in modo certo come effetti di fagliazione superficiale e suggerisce, in particolare per le aree della Sicilia centro–meridionale e occidentale, la presenza di particolari effetti di amplificazione (effetti di sito) in correlazione con forti terremoti come l’evento sismico avvenuto il 28 dicembre 1908.
    Beschreibung: Published
    Beschreibung: 197-214
    Beschreibung: 5.1. TTC - Banche dati e metodi macrosismici
    Beschreibung: open
    Schlagwort(e): 1908 Messina earthquake ; effects on the environment ; seismit ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: book chapter
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  • 5
    facet.materialart.
    Unbekannt
    Edizioni Libreria Colacchi, L'Aquila, 2007
    Publikationsdatum: 2017-04-04
    Beschreibung: Fear and its corollary, the need for reassurance and protection, are feelings as old as humankind, that every culture had to learn to cope with in its own way. There are positive ways of coping, by developing mechanisms (beliefs, behaviours, rules, rituals, myths, scientific theories, theological explanations to name a few) that help to accept/explain/set in context the fear, thus keeping it in check; and there are negative ways, by which one strives to forget, as soon and as well as possible, whatever it was that made one afraid and needing reassurance. Each way has its pros and cons, the ultimate choice being, most often, dictated by circumstances as well as by the general cultural outlook of the involved parties. This paper studies the “spiritual strategies” adopted by the communities that experienced the great Italian earthquakes of 1703, trying to determine whether they simply followed well-established patterns or whether they presented some elements of novelty.
    Beschreibung: Deputazione di Storia Patria negli Abruzzi
    Beschreibung: Published
    Beschreibung: L'Aquila (AQ), Italia
    Beschreibung: 3.10. Sismologia storica e archeosismologia
    Beschreibung: reserved
    Schlagwort(e): Historical Antropology ; 1703 earthquakes ; Historical seismology ; Earthquake rituals ; Earthquake patron saints ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: Conference paper
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  • 6
    Publikationsdatum: 2017-04-04
    Beschreibung: On 29 June 1170 a large earthquake hit a vast area in the Near Eastern Mediterranean, comprising the present-day territories of western Syria, central southern Turkey, and Lebanon. Although this was one of the strongest seismic events ever to hit Syria, so far no in-depth or specific studies have been available. Furthermore, the seismological literature (from 1979 until 2000) only elaborated a partial summary of it, mainly based solely on Arabic sources. The major effects area was very partial, making the derived seismic parameters unreliable. This earthquake is in actual fact one of the most highly documented events of the medieval Mediterranean. This is due to both the particular historical period in which it had occurred (between the second and the third Crusades) and the presence of the Latin states in the territory of Syria. Some 50 historical sources, written in eight different languages, have been analyzed: Latin (major contributions), Arabic, Syriac, Armenian, Greek, Hebrew, Vulgar French, and Italian. A critical analysis of this extraordinary body of historical information has allowed us to obtain data on the effects of the earthquake at 29 locations, 16 of which were unknown in the previous scientific literature. As regards the seismic dynamics, this study has set itself the question of whether there was just one or more than one strong earthquake. In the former case, the parameters (Me 7.7 ± 0.22, epicenter, and fault length 126.2 km) were calculated. Some hypotheses are outlined concerning the seismogenic zones involved.
    Beschreibung: Published
    Beschreibung: B07304
    Beschreibung: 3.10. Sismologia storica e archeosismologia
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Historical earthquakes ; Syria ; Lebanon ; central southern Turkey ; seismogenic source ; 04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 7
    Publikationsdatum: 2017-04-04
    Beschreibung: We discuss the tectonic implications of a new residual magnetic map of the Apennine belt/Adriatic-Apulian foreland obtained by integrating ground and offshore data sets [Chiappini et al., 2000a]. Negative anomalies are documented over the Adriatic-Apulian foreland areas, whereas the external Apennine belt is characterized by a ubiquitous lowamplitude (〈30 nT), long-wavelength positive anomaly. In the central northern Apennines, three 100 km wide more intense (100–200 nT) round-shaped anomalies are superimposed to the long-wavelength feature. Finally, in the Tyrrhenian Sea and margins, high-intensity, short-wavelength positive-negative couplets coincide with magmatic outcrops or bodies at shallow depth. The low-amplitude anomaly pattern over Italy suggests that the magnetic basement beneath the Triassic evaporites is ubiquitously incorporated in the external belt compressive fronts, implying a thick-skinned tectonic style for the external Apennines. The new residual magnetic map resolves the inconsistency between previous aeromagnetic data [AGIP SpA. Italia, 1981], which suggested a lack of basement involvement in the Apennine belt, and recent seismic data, which imaged deep reflectors penetrating the basement. Two magnetic models along NE-SW transects in the northern and southern Apennines suggest consistent structural styles. In the northern Apennines, positive anomalies roughly coincide with the external compressive fronts, although there are local second-order differences between the belt front and the edges of the anomaly. Here the magnetic data show that the basement rises southwestward along the thrust fronts from 6–7 km depth in the Adriatic foreland to 2–3 km depth in the axial belt, where some exploration wells have penetrated basement. Within the belt front, basement exhumation is inferred to occur along high-angle, low-displacement thrust faults inverting preexisting normal faults. In the southern Apennines, a remarkable positive magnetic anomaly is parallel with and tens of kilometers southwest of the belt front. Seismic data and oil wells show that the basement surface cannot be shallower in the belt than in the foreland. Therefore the observed magnetic anomaly is produced by strongly magnetic basement beneath the belt, likely an internal crustal wedge tectonically interposed between the Apulian carbonate sequences and basement.
    Beschreibung: Published
    Beschreibung: 2290
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Magnetic anomalies ; Potential fields ; Apennines ; Crustal modelling ; 04. Solid Earth::04.02. Exploration geophysics::04.02.02. Gravity methods ; 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods ; 04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 8
    Publikationsdatum: 2017-04-04
    Beschreibung: We present the results of a paleomagnetic study carried out on 32 sites from mainly Messinian clayey sediments distributed throughout the external Umbria-Marche-Romagna Arc (UMRA). These data, together with published results from coeval sediments, demonstrate that this arc is an orocline in its central northern sector. Bending, not well constrained in time, was due to about 15° clockwise rotations of the central part of this arc and to counterclockwise rotations farther north. In this latter area, post-Messinian counterclockwise rotations are of the same amplitude as those calculated for some classic Mesozoic paleomagnestic sections in northern Umbria, suggesting a Plio-Pleistocene age for the rotations reported from the older sequences.
    Beschreibung: Published
    Beschreibung: 3153-3166
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): paleomagnetism ; tectonic rotations ; arcuate belt ; northern Apennines ; 04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetism ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 9
    Publikationsdatum: 2017-04-04
    Beschreibung: Most of the ancient town of Tindari (NE, Sicily) was settled on a plateau the most surficial layer of which was made of unconsolidated material. Ongoing excavations at the archaeological site at Tindari uncovered a large portion of the decumanus which suffered deformations preliminarily assigned to coseismic effects. An analysis of the local dynamic response through the simulation of strong seismic shaking to the bedrock and modelling of spectral ratios of the bedrock-soft soil was carried out to verify the susceptibility of superficial terrains of the promontory to coseismic deformations. To perform this simulation the finite element method (FEM) was used. Four accelerometric recordings of three earthquakes of medium-high magnitude, recorded on rocky sites, were chosen to simulate the seismic shaking, using a constitutive law for the materials composing the promontory layers both of linear-elastic type and of elastoplastic type. The analysis of the linear-elastic field allowed the definition of the frequencies for which the spectral ratios of the accelerations recorded the highest amplifications; in particular the frequency range 31.5–37.2 Hz can be combined with deformation of the paved floor of the decumanus. The analysis in the elastoplastic field highlighted the zones of promontory more susceptible to suffer plasticization process. The results show that the topmost layer of the decumanus is the most susceptible to suffer plasticization. Therefore, the performed analysis lends greater support to the hypothesis that the deformations were produced by seismic shaking.
    Beschreibung: Published
    Beschreibung: 213-222
    Beschreibung: 3.10. Sismologia storica e archeosismologia
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Fourier analysis ; Elasticity and anelasticity ; Earthquake ground motions ; Site effects ; Computational seismology ; 04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 10
    Publikationsdatum: 2017-04-04
    Beschreibung: Ground deformations measured on Mount Etna from late 1995 to mid-1998 using GPS observations are analyzed. Four GPS surveys were carried out during the considered period. In 1995 the GPS network consisted of 18 stations on the volcanic edifice and 6 stations around it. During the 1996 survey, 22 new monuments were added along a N-S profile crossing the summit craters area. This profile was surveyed by a semikinematic method, allowing greater spatial detail to be achieved on the uppermost part of the volcano. The comparisons between the GPS surveys are reported here in terms of horizontal and vertical displacements for each station and also in terms of areal dilatation and strain distribution. This last parameter continues its ascending trend, at a rate of ~5 μstrain yr−1, already shown in the previous period, after the end of the 1991–1993 flank eruption. Inversion of the ground deformation patterns permits investigation of the evolution of both the position and dynamics of magma reservoirs beneath the volcano, consistently associated with a general eastward sliding of its eastern sector. This study allows us to define the nonuniqueness of ground deformation sources through the investigated period, suggesting that the plumbing system of the volcano is made up of a complex system of single intrusions occurring at different times.
    Beschreibung: Published
    Beschreibung: 1-15
    Beschreibung: partially_open
    Schlagwort(e): Mount Etna ; ground deformation ; GPS ; 04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations ; 04. Solid Earth::04.03. Geodesy::04.03.05. Gravity variations ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Format: 490 bytes
    Format: 803688 bytes
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