Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/6322
DC Field | Value | Language |
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dc.contributor.authorall | Volpe, Manuela; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Piersanti, Antonio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Melini, Daniele | en |
dc.contributor.authorall | Casarotti, Emanuele; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2010-12-13T13:53:13Z | en |
dc.date.available | 2010-12-13T13:53:13Z | en |
dc.date.issued | 2010-12-13 | en |
dc.identifier.uri | http://hdl.handle.net/2122/6322 | en |
dc.description.abstract | The L'Aquila earthquake (Mw 6.3) occurred on April 6th at 01:32 UTC in the Central Appennines at a depth of about 9 km and was felt all over the central Italy. The main shock was preceded by a long seismic sequence started several months before and was followed by thousands of aftershocks, some of them with Mw>4. In this work we present a 3D Finite Element (FE) study of the co-seismic deformation field produced by the L'Aquila earthquake and investigated the slip distribution on the fault. Our approach is based on a fully 3D parametrization of the spatial domain by means of a high resolution hexahedral mesh, discretized using 20-nodes brick elements. The element horizontal size is biased from 300 m to 2-3 km using the paving meshing algorithm in combination with an appropriate adaptive sizing function. Real surface topography (500 m) and rheological heterogeneities, deduced from a vp/vs travel time tomographic model, were incorporated within the model. The seismic source has been modeled as a normal fault plane having an heterogeneous moment release. We first computed the co--seismic deformation field by a direct simulation and then the Green's functions, to retrieve the slip distribution on the fault by linear inversion of different GPS datasets. Our results show that the adoption of a realistic 3D domain has a sensible impact on the rupture slip distribution, confirming that a simple halfspace approach introduces some trade-off between domain homogeneity and source complexity. | en |
dc.language.iso | English | en |
dc.relation.ispartof | AGU Fall Meeting 2010 | en |
dc.subject | Fault inversion | en |
dc.subject | slip distribution | en |
dc.subject | L'Aquila earthquake | en |
dc.subject | finite element method | en |
dc.title | Linear inversion of GPS data of the 2009 L'Aquila earthquake by means of a High resolution 3D finite element approach | en |
dc.type | Poster session | en |
dc.description.status | Unpublished | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics | en |
dc.subject.INGV | 05. General::05.01. Computational geophysics::05.01.03. Inverse methods | en |
dc.description.ConferenceLocation | San Francisco (USA) | en |
dc.description.obiettivoSpecifico | 3.3. Geodinamica e struttura dell'interno della Terra | en |
dc.description.fulltext | open | en |
dc.contributor.author | Volpe, Manuela | en |
dc.contributor.author | Piersanti, Antonio | en |
dc.contributor.author | Melini, Daniele | en |
dc.contributor.author | Casarotti, Emanuele | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
item.openairetype | Poster session | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.orcid | 0000-0003-4551-3339 | - |
crisitem.author.orcid | 0000-0002-1814-5721 | - |
crisitem.author.orcid | 0000-0002-5383-2375 | - |
crisitem.author.orcid | 0000-0002-3937-4312 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 05. General | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Conference materials |
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File | Description | Size | Format | |
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agu2010.pdf | 103.69 MB | Adobe PDF | View/Open |
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