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Maseroli, Renzo
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- PublicationRestrictedItalian Magnetic Network and Geomagnetic Field Maps of Italy at year 2010.0(Istituto Geografico Militare, 2012)
; ; ; ; ; ;Dominici, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Meloni, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Sperti, M.; Istituto Geografico Militare, Firenze ;Manzo, G.; Istituto Geografico Militare, Firenze ;Maseroli, R.; Istituto Geografico Militare, Firenze; ; ; ; In the frame of a long-time collaboration between INGV (Istituto Nazionale di Geofisica e Vulcanologia) and IGMI (Istituto Geografico Militare Italiano), also in the years 2009 and 2010 a survey of 131 repeat stations of the Italian Magnetic Network (including 2 observatories, 11 stations in Albania and 3 in Corsica and 1 in Malta) was carried out. In this paper the procedures for magnetic measurements and data elaboration are described. Furthermore, for all the repeat stations data reduced at of the measurement day, at the epoch 2010.0; are presented. At the same epoch the coefficients for normal fields were determined for all the data, in order to draw the new maps of the geomagnetic field elements (D, H, Z and total field F) at the year 2010.0, at 1: 2 000 000 scale. All these maps were created by mean of interpolation procedures on GIS platform.319 64 - PublicationOpen AccessShort-term vertical velocity field in the Appennines (Italy) revealed by geodetic levelling data(2006)
; ; ; ; ; ; ;D'Anastasio, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;De Martini, P. M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Selvaggi, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Pantosti, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Marchioni, A.; Istituto Geografico Militare, Servizio Geodetico, via di Novoli 93, 50127, Firenze, Italy ;Maseroli, R.; Istituto Geografico Militare, Servizio Geodetico, via di Novoli 93, 50127, Firenze, Italy; ; ; ; ; We estimate current vertical movements along the Apennines (Italy) through repeatedly measured high precision levelling routes. In order to highlight regional crustal deformation the analysis of a geodetic database, with a minimum benchmark density of 0.7 bm/km (1943–2003 time period), is carried out. We evaluate systematic and random error and their propagation along the levelling routes. Tests on original raw height data have been carried out to define error propagation. The computed relative vertical rates stand significantly above error propagation. A series of traverses along and across the Apennines and a map of relative vertical velocities reveal a geodetic signal characterised by values up to 2.5–3.0 mm/a and by wavelengths up to 100 km. © 2006 Elsevier B.V. All rights reserved.160 500 - PublicationRestrictedCoseismic and post-seismic slip of the 2009 L'Aquila (central Italy) MW 6.3 earthquake and implications for seismic potential along the Campotosto fault from joint inversion of high-precision levelling, InSAR and GPS data(2014-03-15)
; ; ; ; ; ; ; ; ; ; ; ; ; ;Cheloni, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Giuliani, R.; Ufficio Rischio Sismico e Vulcanico, DPC, Roma ;D'Anastasio, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Atzori, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Walters, R. J.; COMET+, School of Earth and Environment, University of Leeds, Leeds ;Bonci, L.; ISPRA, Roma ;D'Agostino, N.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Mattone, M.; Ufficio Rischio Sismico e Vulcanico, DPC, Roma ;Calcaterra, S.; ISPRA, Roma ;Gambino, P.; ISPRA, Roma ;Deninno, F.; IGM, Firenze ;Maseroli, R.; IGM, Firenze ;Stefanelli, G.; IGM, Firenze; ; ; ; ; ; ; ; ; ; ; ; After the April 6th 2009 MW 6.3 (ML 5.9) L'Aquila earthquake (central Italy), we re-measured more than 100 km of high-precision levelling lines in the epicentral area. The joint inversion of the levelling measurements with InSAR and GPS measurements, allowed us to derive new coseismic and post-seismic slip distributions and to de- scribe, with high resolution details on surface displacements, the activation and the slip distribution of a second- ary fault during the aftershock sequence that struck the Campotosto area (major event MW 5.2). Coseismic slip on the Paganica fault occurred on one main asperity, while the afterslip distribution shows a more complex pattern, occurring on three main patches, including both slips on the shallow portions and on the deeper parts of the rup- ture plane. The comparison between coseismic and post-seismic slip distributions strongly suggests that afterslip was triggered at the edges of the coseismic asperity. The activation of a segment of the Campotosto fault during the aftershock sequence, with a good correlation between the estimated slipping area, moment release and distribution of aftershocks, raises the opportunity to discuss the local seismic hazard following the occurrence of the 2009 L'Aquila mainshock. The Campotosto fault appears capable of generating earthquakes as large as his- torical events in the region (M N 6.5) or as small as the ones associated with the 2009 sequence. In the case that the Campotosto fault is accumulating a significant portion of the current interseismic deformation, the 2009 MW N 5 events will have released only a small amount of the accumulated elastic strain, and then a significant hazard still remains in the area. Continuing geodetic monitoring and a densification of the GPS networks in the region are therefore needed to estimate the tectonic loading across the different recognized active fault systems in this part of the Apennines.589 118 - PublicationOpen AccessItalian Magnetic Network and Italian Geomagnetic Field Map at year 2015.0(Istituto Geografico Militare, 2017)
; ; ; ; ; ; ; ; ; During 2014 and 2015 the Istituto Nazionale di Geofisica e Vulcanologia (INGV) carried out a survey of measurements over 131 repeat stations of the Italian Magnetic Network (including 2 observatories, 11 stations in Albania, 3 in Corsica and 1 in Malta) with the primary purpose to update old 2010.0 survey data. In this way the Istituto Geografico Militare (IGM) was able to produce a new series of magnetic maps at epoch 2015.0, at a scale of 1 : 2 000 000. All these maps were created by mean of interpolation procedures on GIS platform. In this paper the procedures for magnetic measurements and data processing are described. Furthermore, for all the repeat stations, data reduced at 02UT of the measurement day, at epoch 2015.0, are presented. At the same epoch the coefficients for normal fields and secular variation, for the period 2010-2015, were determined for all data, in order to draw the new maps. In attachment there is the collection of magnetic maps of Italy including also a CD rom.153 1237