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Showing 1 to 20 of 30 for “"GEO/10 Geofisica della terra solida"”.
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The rupture process of recent tsunamigenic earthquakes by geophysical data inversion
… process is to have recourse to the inversion of geophysical data that are available. Tsunami data, moreover, are useful to constrain the portion of the fault area that extends offshore, generally close to the trench that, on the contrary, other kinds of data are not able to constrain. In this …
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Tectonics and kinematics of curved mountain belts: examples from the Andes and the Alps
Curved mountain belts have always fascinated geologists and geophysicists because of their peculiar structural setting and geodynamic mechanisms of formation. The need of studying orogenic bends arises from the numerous questions to which geologists and geophysicists have tried to answer to during …
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Crustal heterogeneities and complexities of fault processes
In this work we study the relation between crustal heterogeneities and complexities in fault processes. The first kind of heterogeneity considered involves the concept of asperity. The presence of an asperity in the hypocentral region of the M = 6.5 earthquake of June 17-th, 2000 in the South …
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Metodologie per il miglioramento delle stime di pericolosità sismica in Italia
… MPS, 2004), redatta dall’Istituto Nazionale di Geofisica e Vulcanologia (INGV) e adottata come mappa di riferimento per il territorio nazionale ai sensi dell’Ordinanza PCM 3519 del 28 aprile 2006, All. 1b, è stato approfondito il calcolo dei tassi di sismicità attraverso la relazione di …
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Tecniche di elaborazione di dati macrosismici per la definizione di sorgenti sismogenetiche
… per analisi sismotettoniche e per la stima della pericolosità sismica. Questa tesi ha affrontato il problema del formalismo della stima dell’intensità migliorando aspetti sia teorici che pratici attraverso tre passaggi fondamentali sviluppati in ambiente MS-Excel e Matlab: i) la raccolta e …
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Meccanismi di formazione dei tubi di lava
Two analytical models are proposed to describe two different mechanisms of lava tubes formation. A first model is introduced to describe the development of a solid crust in the central region of the channel, and the formation of a tube when crust widens until it reaches the leve\'es. The Newtonian …
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A comprehensive study of the 26th December 2004 Sumatra earthquake: possible implications on Earth rotation and investigations on the coseismic and postseismic stress diffusion associated with the seismic rupture
In this work a multidisciplinary study of the December 26th, 2004 Sumatra earthquake has been carried out. We have investigated both the effect of the earthquake on the Earth rotation and the stress field variations associated with the seismic event. In the first part of the work we have quantified …
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Shallow and deep deformation in northern Apennines region using seismological data
For its particular position and the complex geological history, the Northern Apennines has been considered as a natural laboratory to apply several kinds of investigations. By the way, it is complicated to joint all the knowledge about the Northern Apennines in a unique picture that explains the …
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Estimating crustal deformation from geodetic data
By the end of the 19th century, geodesy has contributed greatly to the knowledge of regional tectonics and fault movement through its ability to measure, at sub-centimetre precision, the relative positions of points on the Earth’s surface. Nowadays the systematic analysis of geodetic measurements …
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Multiresolution spherical wavelet analysis in global seismic tomography
… are an underlying tool for determination of geodynamical state of the Earth, showing evident correlation with other geophysical and geological characteristics. The global tomographic images of the Earth can be written as a linear combinations of basis functions from a specifically chosen set, …
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Sviluppo di metodologie di localizzazione nel contesto del Comprehensive Nuclear Test-Ban Treaty
… was not used. We have obtained that the relevant geometrical spreading, noticeable in the standard locations (namely the locations produced by the analysts of the International Data Center (IDC) of the CTBT Organization, assumed as our reference), has been considerably reduced by the application …
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