Bibliographies thématiques / L'Aquila seismic sequence

Littérature scientifique sur le sujet « L'Aquila seismic sequence »

Auteur : Grafiati
Publié le 14 mars 2023

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Articles de revues sur le sujet "L'Aquila seismic sequence"

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Cianchini, G., A. De Santis, D. R. Barraclough, L. X. Wu et K. Qin. « Magnetic transfer function entropy and the 2009 <i>M</i><sub>w</sub> ; = 6.3 L'Aquila earthquake (Central Italy) ». Nonlinear Processes in Geophysics 19, no 4 (23 juillet 2012) : 401–9. http://dx.doi.org/10.5194/npg-19-401-2012.

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Abstract. With the aim of obtaining a deeper knowledge of the physical phenomena associated with the 2009 L'Aquila (Central Italy) seismic sequence, culminating with a Mw = 6.3 earthquake on 6 April 2009, and possibly of identifying some kind of earthquake-related magnetic or geoelectric anomaly, we analyse the geomagnetic field components measured at the magnetic observatory of L'Aquila and their variations in time. In particular, trends of magnetic transfer functions in the years 2006–2010 are inspected. They are calculated from the horizontal to vertical magnetic component ratio in the frequency domain, and are very sensitive to deep and lateral geoelectric characteristics of the measurement site. Entropy analysis, carried out from the transfer functions with the so called transfer function entropy, points out clear temporal burst regimes of a few distinct harmonics preceding the main shock of the seismic sequence. A possible explanation is that they could be related to deep fluid migrations and/or to variations in the micro-/meso-fracturing that affected significantly the conductivity (ordered/disordered) distribution in a large lithospheric volume under the seismogenic layer below L'Aquila area. This interpretation is also supported by the analysis of hypocentres depths before the main shock occurrence.
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De Santis, Angelo, Gianfranco Cianchini, Enkelejda Qamili et Alberto Frepoli. « The 2009 L'Aquila (Central Italy) seismic sequence as a chaotic process ». Tectonophysics 496, no 1-4 (décembre 2010) : 44–52. http://dx.doi.org/10.1016/j.tecto.2010.10.005.

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Masci, Fabrizio, et Manuele Di Persio. « Retrospective investigation of geomagnetic field time-series during the 2009 L'Aquila seismic sequence ». Tectonophysics 530-531 (mars 2012) : 310–17. http://dx.doi.org/10.1016/j.tecto.2012.01.008.

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Calderoni, G., A. Rovelli, Y. Ben-Zion et R. Di Giovambattista. « Along-strike rupture directivity of earthquakes of the 2009 L'Aquila, central Italy, seismic sequence ». Geophysical Journal International 203, no 1 (27 août 2015) : 399–415. http://dx.doi.org/10.1093/gji/ggv275.

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Masci, F., P. Palangio et M. Di Persio. « Magnetic anomalies possibly linked to local low seismicity ». Natural Hazards and Earth System Sciences 9, no 5 (18 septembre 2009) : 1567–72. http://dx.doi.org/10.5194/nhess-9-1567-2009.

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Abstract. During the last twenty years a time-synchronized network of magnetometers has operated in Central Italy along the Apennine chain to monitor the magnetic field anomalies eventually related to the tectonic activity. At present time the network consists of five stations. In the past only few anomalies in the local geomagnetic field, possibly associated to earthquakes, has been observed, not least because the network area has shown a low-moderate seismic activity with the epicentres of the few events with Ml≥5 located away from the network station. During 2007 two Ml≈4 earthquakes occurred in proximity of two stations of the network. Here we report the magnetic anomalies in the geomagnetic field that could be related with these tectonic events. To better investigate these two events a study of ULF (ultra-low-frequency) emissions has been carried out on the geomagnetic field components H, D, and Z measured in L'Aquila Observatory during the period from January 2006 to December 2008. We want to stress that this paper refers to the period before the 2009 L'Aquila seismic sequence which main shock (Ml=5.8) of 6 April heavily damaged the medieval centre of the city and surroundings. At present time the analysis of the 2009 data is in progress.
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Brunsvik, Brennan, Gabriele Morra, Gabriele Cambiotti, Lauro Chiaraluce, Raffaele Di Stefano, Pasquale De Gori et David A. Yuen. « Three-dimensional paganica fault morphology obtained from hypocenter clustering (L'Aquila 2009 seismic sequence, Central Italy) ». Tectonophysics 804 (avril 2021) : 228756. http://dx.doi.org/10.1016/j.tecto.2021.228756.

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Malagnini, Luca, Francesco Pio Lucente, Pasquale De Gori, Aybige Akinci et Irene Munafo'. « Control of pore fluid pressure diffusion on fault failure mode : Insights from the 2009 L'Aquila seismic sequence ». Journal of Geophysical Research : Solid Earth 117, B5 (mai 2012) : n/a. http://dx.doi.org/10.1029/2011jb008911.

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Ditommaso, R., M. Vona, M. R. Gallipoli et M. Mucciarelli. « Evaluation and considerations about fundamental periods of damaged reinforced concrete buildings ». Natural Hazards and Earth System Sciences 13, no 7 (31 juillet 2013) : 1903–12. http://dx.doi.org/10.5194/nhess-13-1903-2013.

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Abstract. The aim of this paper is an empirical estimation of the fundamental period of reinforced concrete buildings and its variation due to structural and non-structural damage. The 2009 L'Aquila earthquake has highlighted the mismatch between experimental data and code provisions value not only for undamaged buildings but also for the damaged ones. The 6 April 2009 L'Aquila earthquake provided the first opportunity in Italy to estimate the fundamental period of reinforced concrete (RC) buildings after a strong seismic sequence. A total of 68 buildings with different characteristics, such as age, height and damage level, have been investigated by performing ambient vibration measurements that provided their fundamental translational period. Four different damage levels were considered according with the definitions by EMS 98 (European Macroseismic Scale), trying to regroup the estimated fundamental periods versus building heights according to damage. The fundamental period of RC buildings estimated for low damage level is equal to the previous relationship obtained in Italy and Europe for undamaged buildings, well below code provisions. When damage levels are higher, the fundamental periods increase, but again with values much lower than those provided by codes. Finally, the authors suggest a possible update of the code formula for the simplified estimation of the fundamental period of vibration for existing RC buildings, taking into account also the inelastic behaviour.
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De Guidi, Giorgio, Alessia Vecchio, Fabio Brighenti, Riccardo Caputo, Francesco Carnemolla, Adriano Di Pietro, Marco Lupo et al. « Brief communication : Co-seismic displacement on 26 and 30 October 2016 (<i>M</i><sub>w</sub> ; = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network ». Natural Hazards and Earth System Sciences 17, no 11 (9 novembre 2017) : 1885–92. http://dx.doi.org/10.5194/nhess-17-1885-2017.

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Abstract. On 24 August 2016 a strong earthquake (Mw = 6.0) affected central Italy and an intense seismic sequence started. Field observations, DInSAR (Differential INterferometry Synthetic-Aperture Radar) analyses and preliminary focal mechanisms, as well as the distribution of aftershocks, suggested the reactivation of the northern sector of the Laga fault, the southern part of which was already rebooted during the 2009 L'Aquila sequence, and of the southern segment of the Mt Vettore fault system (MVFS). Based on this preliminary information and following the stress-triggering concept (Stein, 1999; Steacy et al., 2005), we tentatively identified a potential fault zone that is very vulnerable to future seismic events just north of the earlier epicentral area. Accordingly, we planned a local geodetic network consisting of five new GNSS (Global Navigation Satellite System) stations located a few kilometres away from both sides of the MVFS. This network was devoted to working out, at least partially but in some detail, the possible northward propagation of the crustal network ruptures. The building of the stations and a first set of measurements were carried out during a first campaign (30 September and 2 October 2016). On 26 October 2016, immediately north of the epicentral area of the 24 August event, another earthquake (Mw = 5.9) occurred, followed 4 days later (30 October) by the main shock (Mw = 6.5) of the whole 2016 summer–autumn seismic sequence. Our local geodetic network was fully affected by the new events and therefore we performed a second campaign soon after (11–13 November 2016). In this brief note, we provide the results of our geodetic measurements that registered the co-seismic and immediately post-seismic deformation of the two major October shocks, documenting in some detail the surface deformation close to the fault trace. We also compare our results with the available surface deformation field of the broader area, obtained on the basis of the DInSAR technique, and show an overall good fit.
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Picozzi, M., S. Parolai, M. Mucciarelli, C. Milkereit, D. Bindi, R. Ditommaso, M. Vona, M. R. Gallipoli et J. Zschau. « Interferometric Analysis of Strong Ground Motion for Structural Health Monitoring : The Example of the L'Aquila, Italy, Seismic Sequence of 2009 ». Bulletin of the Seismological Society of America 101, no 2 (22 mars 2011) : 635–51. http://dx.doi.org/10.1785/0120100070.

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Actes de conférences sur le sujet "L'Aquila seismic sequence"

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Rainone, Mario Luigi, Patrizio Torrese, Fabio Pizzica, Pasquale Greco et Patrizio Signanini. « Measurement of Seismic Local Effects and 1D Numerical Modeling at Selected Sites Affected by the 2009 Seismic Sequence of L'Aquila ». Dans Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010. Environment and Engineering Geophysical Society, 2010. http://dx.doi.org/10.4133/1.3445507.

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Rogulska, Aleksandra. « TEMPORARY CULTURAL FACILITIES AS AN ELEMENT OF REBUILDING STRATEGIES FOR CITIES AFFECTED BY EARTHQUAKES ». Dans GEOLINKS International Conference. SAIMA Consult Ltd, 2020. http://dx.doi.org/10.32008/geolinks2020/b2/v2/35.

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The Apennine Peninsula is one of the most densely-populated and most seismically active regions of Europe, possessing a wealth of cultural heritage. Historical cities and buildings are a part of this heritage. The earthquake damage prevention programme implemented in Italy does not cover existing buildings, and reconstruction plans for damaged cities, because of the threat's specificity, are always prepared after a disaster. In the case of heritage buildings, particularly those of super-local significance, decisions involving a complete reconstruction of their original form are typically made, erasing all traces of the tragedy. Reconstruction can take years, during which society is left without cultural facilities that are key to good morale. Opportunities provided by the phase between a disaster and restoring the buildings are too often underappreciated, while the time spent making the decision what and how to rebuild should be spent on action. Strategies involving temporary buildings allow to prevent the disappearance of public functions during the period preceding the reconstruction of major cultural facilities. These buildings should be designed as resilient, assuming a capacity to adapt to changing conditions and upholding or rapidly returning to a functional state after a disaster. They can enable the time between the disaster and making the decision about reconstruction to be used to identify and test new relations in the surroundings created through the loss of a section of substance. They provoke a debate about what must be rebuilt and at what cost, they facilitate understanding of the goals of a planned reconstruction. But most importantly, they sustain the genius loci, in order to affect the city's reconstruction process in its social, psychological and economic aspects. By analysing temporary cultural facilities built in Italian cities damaged by earthquakes, the study discusses methods of building temporary public buildings and features an attempt at assessing interventions that precede reconstruction. Based on the experiences of the city of L'Aquila severely damaged in 2009 and drawing conclusions from mistakes made during the implementation of pre-reconstruction strategies in the town, the author developed a proposal of a temporary intervention for the Basilica of St. Benedict of Nursia, which collapsed on the 30th of October 2016 as an effect of the Amatrice-Visso-Norcia seismic sequence. The proposal stresses the preservation of the previous function of the complex at its original site. This is meant to maintain the occupancy of Norcia's centre by the Benedictine monks, whose tradition is strongly linked with the city and makes it a major pilgrimage destination that is important to Christians.
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