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Osservatorio Sismologico, Universita` di Messina, Messina, Italy.
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- PublicationRestrictedOn the Observed Intensity Filtering in the Anisotropic Distribution Modelling of Macroseismic Intensity(2005-04)
; ; ; ; ;Termini, D.; Osservatorio Sismologico, Universita` di Messina, Messina, Italy ;Teramo, A.; Osservatorio Sismologico, Universita` di Messina, Messina, Italy ;Tuvè, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia ;Bottari, A.; Osservatorio Sismologico, Universita` di Messina, Messina, Italy; ; ; The anisotropic modelling of intensity distribution, affected by the construction of macroseismic planes, allows an analysis of the influence of each point of observed intensity on the analytical determination of epicenter and of the principal attenuation directions. Such a procedure is a vital aid in the cases in which the observed intensity points, that, for location or joined intensity level, are not consistent with an anisotropic model of intensity attenuation. A suitable filtering on intensity levels associated with the points of the intensity map, for a better modelling of observed intensity distribution, is proposed with the aim of a better seismic hazard evaluation130 70 - PublicationRestrictedAn Anisotropic Attenuation Law of Macroseismic Intensity Performed on Virtual Intensity Distribution of Seismogenic Zones(2005-04)
; ; ; ; ;Termini, D.; Osservatorio Sismologico, Universita` di Messina ;Teramo, A.; Osservatorio Sismologico, Universita` di Messina ;Bottari, C.; Osservatorio Sismologico, Universita` di Messina ;Tuvè, T.; Osservatorio Sismologico, Universita` di Messina; ; ; An anisotropic attenuation law, based on an anisotropic characterization of intensity distribution for seismogenic zones, is proposed. This approach, that distinguishes itself for its consistency to the observed data, initially reconfigured by filtering procedures, is particularly suitable for seismic hazard evaluation.170 20 - PublicationRestrictedMacroseismic Intensity Modelling of Earthquakes in Southern Spain: Attenuation and Tectonic Implications(2005-04)
; ; ; ; ; ;Tuvè, T.; Osservatorio Sismologico, Universita` di Messina, Via Osservatorio ;Teramo, A.; Osservatorio Sismologico, Universita` di Messina ;Ibanez, J; Instituto Andaluz de Geofisica, Universidad de Granada, Spain ;Bottari, C.; Osservatorio Sismologico, Universita` di Messina, Via Osservatorio ;Termini, D.; Osservatorio Sismologico, Universita` di Messina; ; ; ; A modelling of the observed macroseismic intensity of historical and instrumental earthquakes in southern Spain is proposed, with the aim of determining the macroseismic parameters for seismic hazard evaluation in a region in which the characterization of intensity distribution of seismic events shows different levels of difficulty referable to the complex faults system of the area in study. The adopted procedure allows an analytical determination of epicenters and principal attenuation directions of earthquakes with a double level of verification with reference to the maximum shaking area and structural lineaments of the region, respectively. The analyses, carried out on a suitable number of events, highlight, therefore, some elements for a preliminary characterization of a seismic zonation on the basis of the consistency between seismic intensity distribution of earthquakes and corresponding structural framework.187 22 - PublicationRestrictedMacroseismic Parameters of Seismogenic Zones of Calabria and Sicily for Seismic Hazard Evaluation(2005-04)
; ; ; ;Bottari, C.; Osservatorio Sismologico, Universita` di Messina ;Termini, D.; Osservatorio Sismologico, Universita` di Messina ;Teramo, A.; Osservatorio Sismologico, Universita` di Messina; ; For the seismic hazard evaluation of the region including the southern Calabro- Peloritanian Arc and southeastern Sicily, the determination of the macroseismic virtual intensity distributions has been carried out, characteristic of the seismogenic zones that fall within the area in study, starting with the structural framework of the region and from the analysis of the observed intensity effected through suitable filters. The macroseismic parameters, derived from such virtual distributions and used for seismic hazard evaluation, are not only a reference for eventual subsequently deeper knowledge referable to the need for a better characterization of the reference modelling, but distinguish themselves as an essential instrument for the definition of seismic hazard scenarios correlated to seismic events that take place in single seismogenic zones.218 27 - PublicationRestrictedMacroseismic Intensity Modelling of Earthquakes in Southern Spain: Attenuation and Tectonic Implications(2005-04)
; ; ; ; ; ;Tuvè, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia ;Teramo, A.; Osservatorio Sismologico, Universita` di Messina, Messina, Italy. ;Ibanez, J.; Instituto Andaluz de Geofisica, Universidad de Granada, Granada, Spain ;Bottari, C.; Instituto Andaluz de Geofisica, Universidad de Granada, Granada, Spain ;Termini, D.; Osservatorio Sismologico, Universita` di Messina, Messina, Italy.; ; ; ; A modelling of the observed macroseismic intensity of historical and instrumental earthquakes in southern Spain is proposed, with the aim of determining the macroseismic parameters for seismic hazard evaluation in a region in which the characterization of intensity distribution of seismic events shows different levels of difficulty referable to the complex faults system of the area in study. The adopted procedure allows an analytical determination of epicenters and principal attenuation directions of earthquakes with a double level of verification with reference to the maximum shaking area and structural lineaments of the region, respectively. The analyses, carried out on a suitable number of events, highlight, therefore, some elements for a preliminary characterization of a seismic zonation on the basis of the consistency between seismic intensity distribution of earthquakes and corresponding structural framework.196 110