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Your search keyword '"Margheriti, L."' showing total 4 results
Start Over Author "Margheriti, L." Topic seismology
4 results on '"Margheriti, L."'

1. Rapid response to the earthquake emergency of May 2012 in the Po Plain, northern Italy

Author

Moretti, M., Abruzzese, L., Abu Zeid, N., Augliera, P., Azzara, R. M., Barnaba, C., Benedetti, L., Bono, A., Bordoni, P., Boxberger, T., Bucci, A., Cacciaguerra, S., Calo, M., Cara, F., Carannante, S., Cardinale, V., Castagnozzi, A., Cattaneo, M., Cavaliere, A., Cecere, G., Chiarabba, C., Chiaraluce, L., Ciaccio, M. G., Cogliano, R., Colasanti, G., Colasanti, M., Cornou, Cécile, Courboulex, F., Criscuoli, F., Cultrera, G., D'Alema, E., D'Ambrosio, C., Danesi, S., De Gori, P., Delladio, A., De Luca, G., Demartin, M., Di Giulio, G., Dorbath, Catherine, Ercolani, E., Faenza, L., Falco, L., Fiaschi, A., Ficeli, P., Fodarella, A., Franceschi, D., Franceschina, G., Frapiccini, M., Frogneux, M., Giovani, L., Govoni, A., Improta, L., Jacques, E., Ladina, C., Langlaude, P., Lauciani, V., Lolli, B., Lovati, S., Lucente, F. P., Luzi, L., Mandiello, A., Marcocci, C., Margheriti, L., Marzorati, S., Massa, M., Mazza, S., Mercerat, D., Milana, G., Minichiello, F., Molli, G., Monachesi, G., Morelli, A., Moschillo, R., Pacor, F., Piccinini, D., Piccolini, U., Pignone, M., Pintore, S., Pondrelli, S., Priolo, E., Pucillo, S., Quintiliani, M., Riccio, G., Romanelli, M., Rovelli, A., Salimbeni, S., Sandri, L., Selvaggi, G., Serratore, A., Silvestri, M., Valoroso, L., Van der Woerd, J., Vannucci, G., Zaccarelli, L., Sismologie (IPGS) (IPGS-Sismologie), Institut de physique du globe de Strasbourg (IPGS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Géosciences Environnement Toulouse (GET), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)

Subjects
010504 meteorology & atmospheric sciences, [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [SDE.MCG]Environmental Sciences/Global Changes, Environmental Seismic Intensity scale, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], 550 - Earth sciences, lcsh:QC851-999, Surveys, 010502 geochemistry & geophysics, 01 natural sciences, Earthquake scenario, Earthquake simulation, Urban seismic risk, measurements and monitoring, Instruments and techniques, Seismological data, Emilia 2012 sequence, Sismiko, Seismic risk, 0105 earth and related environmental sciences, Seismic microzonation, lcsh:QC801-809, Mitigation of seismic motion, Rapid-response, Temporary Seismic Network, lcsh:Geophysics. Cosmic physics, Geophysics, Seismic hazard, 13. Climate action, lcsh:Meteorology. Climatology, Waveform data, Geology, Seismology
Abstract

Rapid-response seismic networks are an important element in the response to seismic crises. They temporarily improve the detection performance of permanent monitoring systems during seismic sequences. The improvement in earthquake detection and location capabilities can be important for decision makers to assess the current situation, and can provide invaluable data for scientific studies related to hazard, tectonics and earthquake physics. Aftershocks and the clustering of the locations of seismic events help to characterize the dimensions of the causative fault. Knowing the number, size and timing of the aftershocks or the clustering seismic events can help in the foreseeing of the characteristics of future seismic sequences in the same tectonic environment. Instrumental rapid response requires a high degree of preparedness. A mission in response to a magnitude (Ml) 6 event with a rupture length of a few tens of kilometers might involve the deployment within hours to days of 30-50 seismic stations in the middle of a disaster area of some hundreds of square kilometers, and the installation of an operational center to help in the logistics and communications. When an earthquake strikes in a populated area, which is almost always the case in Italy, driving the relevant seismic response is more difficult. […]

Published
2012
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2. Constraints on mantle circulation around the deforming Calabrian slab

Author

Claudio Faccenna, Claudia Piromallo, Massimo D'Antonio, Francesca Funiciello, Lucia Margheriti, Lucia Civetta, Faccenna, Claudio, L., Civetta, M., Dantonio, Funiciello, Francesca, L., Margheriti, Faccenna, C., Faccenna, C, Civetta, L, D'Antonio, M, Margheriti, L, Piromallo, C., Civetta, Lucia, D'Antonio, Massimo, Funiciello, F., and Margheriti, L.

Subjects
Pleistocene, Retrograde motion, Geophysics, Tectonic, Mantle (geology), Tectonics, Geochemistry, Back-arc region, Phanerozoic, Slab, General Earth and Planetary Sciences, Quaternary, Seismology, Geology
Abstract

[1] Combining tectonics, with seismological and geochemical data, we reconstruct the deformation history of the presently narrow Calabrian slab and the path of mantle circulation during the last 10 Ma. We show that during the slab deformation the mantle laterally flowed inside the back arc region permitting its retrograde motion and giving a seismological and volcanological record after 1–2 myr.

Published
2005
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3. The 2011–2014 Pollino Seismic Swarm: Complex Fault Systems Imaged by 1D Refined Location and Shear Wave Splitting Analysis at the Apennines–Calabrian Arc Boundary

Author

Marina Pastori, Lucia Margheriti, Pasquale De Gori, Aladino Govoni, Francesco Pio Lucente, Milena Moretti, Alessandro Marchetti, Rita Di Giovambattista, Mario Anselmi, Paolo De Luca, Anna Nardi, Nicola Piana Agostinetti, Diana Latorre, Davide Piccinini, Luigi Passarelli, Claudio Chiarabba, Pastori, M, Margheriti, L, De Gori, P, Govoni, A, Lucente, F, Moretti, M, Marchetti, A, Di Giovambattista, R, Anselmi, M, De Luca, P, Nardi, A, Piana Agostinetti, N, Latorre, D, Piccinini, D, Passarelli, L, Chiarabba, C, and Water and Climate Risk

Subjects
1D and DD localizations, 010504 meteorology & atmospheric sciences, Inversion (geology), 1D and DD localization, Induced seismicity, Fault (geology), 010502 geochemistry & geophysics, shear wave splitting, 01 natural sciences, seismic swarm, tectonics, Anisotropy, lcsh:Science, 0105 earth and related environmental sciences, geography, geography.geographical_feature_category, Shear wave splitting, SDG 11 - Sustainable Cities and Communities, Tectonics, tectonic, Seismic hazard, geodynamics and seismicity, Slab, General Earth and Planetary Sciences, lcsh:Q, Seismology, Geology
Abstract

In the years between 2011 and 2014, at the edge between the Apennines collapsing chain and the subducting Calabrian arc, intense seismic swarms occurred in the Pollino mountain belt. In this key region, ML 5.0 shock occurred in October 2012. This latter comes after a ML four nucleated in May 2012 and followed by aseismic slip episodes. In this study, we present accurate relocations for ∼6,000 earthquakes and shear-wave splitting analysis for ∼22,600 event-station pairs. The seismicity distribution delineates two main clusters around the major shocks: in the north-western area, where the ML 5.0 occurred, the hypocenters are localized in a ball-shaped volume of seismicity without defining any planar distribution, whilst in the eastern area, where the ML 4.3 nucleates, the hypocenters define several faults of a complex system of thrusts and back-thrusts. This different behavior is also imaged by the anisotropic parameters results: a strong variability of fast directions is observed in the western sector, while stable orientations are visible in the eastern cluster. This tectonic system possibly formed as a positive flower structure but as of today, it accommodates stress on normal faults. The deep structure imaged by refined locations is overall consistent with the complex fault system recently mapped at the surface and with patterns of crustal anisotropy depicting fractures alignment at depth. The possible reactivation of inherited structures supports the important role of the Pollino fault as a composite wrench fault system along which, in the lower Pleistocene, the southward retreat of the ionian slab was accommodated; in this contest, the inversion of the faults kinematics indicates a probable southward shift of the slab edge. This interpretation may help to comprehend the physical mechanisms behind the seismic swarms of the region and defining the seismic hazard of the Pollino range: nowadays a region of high seismic hazard although no strong earthquakes are present in the historical record.

Published
2021
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4. The 2009 L'Aquila (central Italy) MW6.3 earthquake: Main shock and aftershocks

Author

Claudio Chiarabba, Licia Faenza, Davide Piccinini, P. De Gori, Paola Baccheschi, Alessandro Marchetti, Marco Cattaneo, Irene Bianchi, D. Seccia, Francesco Pio Lucente, N. Piana Agostinetti, Alessandro Amato, Milena Moretti, Aladino Govoni, Francesco Mariano Mele, Mario Anselmi, M. Di Bona, Luisa Valoroso, Lucia Margheriti, Gianpaolo Cecere, Marina Pastori, Maria Grazia Ciaccio, Alberto Michelini, R. Di Stefano, P. Roselli, Lauro Chiaraluce, G. De Luca, Luigi Improta, Giancarlo Monachesi, Chiarabba, C, Amato, A, Anselmi, M, Baccheschi, P, Bianchi, I, Cattaneo, M, Cecere, G, Chiaraluce, L, Ciaccio, M, De Gori, P, De Luca, G, Di Bona, M, Di Stefano, R, Faenza, L, Govoni, A, Improta, L, Lucente, F, Marchetti, A, Margheriti, L, Mele, F, Michelini, A, Monachesi, G, Moretti, M, Pastori, M, Piana Agostinetti, N, Piccinini, D, Roselli, P, Seccia, D, and Valoroso, L

Subjects
Seismic gap, L aquila, 2009 L' Aquila earthquake, seismic sequence, geography, geography.geographical_feature_category, Seismotectonics, Induced seismicity, Fault (geology), Shock (mechanics), Geophysics, General Earth and Planetary Sciences, Normal fault, Aftershock, Geology, Seismology
Abstract

A Mw 6.3 earthquake struck on April 6, 2009 the Abruzzi region (central Italy) producing vast damage in the L'Aquila town and surroundings. In this paper we present the location and geometry of the fault system as obtained by the analysis of main shock and aftershocks recorded by permanent and temporary networks. The distribution of aftershocks, 712 selected events with ML > 2.3 and 20 with ML > 4.0, defines a complex, 40 km long, NW trending extensional structure. The main shock fault segment extends for 15 -18 km and dips at 45° to the SW, between 10 and 2 km depth. The extent of aftershocks coincides with the surface trace of the Paganica fault, a poorly known normal fault that, after the event, has been quoted to accommodate the extension of the area. We observe a migration of seismicity to the north on an echelon fault that can rupture in future large earthquakes. Copyright 2009 by the American Geophysical Union.

Published
2009
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