Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4962| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Riva, R. E. M.; Dept. of Earth Observation and Space Systems, Delft University of Technology, Delft, The Netherlands | en |
| dc.contributor.authorall | Aoudia, A.; Earth System Physics Section, the Abdus Salam International Centre for Theoretical Physics, Trieste, Italy | en |
| dc.date.accessioned | 2009-03-20T09:24:14Z | en |
| dc.date.available | 2009-03-20T09:24:14Z | en |
| dc.date.issued | 2008-04 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/4962 | en |
| dc.description.abstract | The geodynamic complexity of the Apennines and adjacent sedimentary basins in Umbria-Marche (North-Central Italy) makes the dynamics of the present day deformation and its relationships with the seismicity less well understood. In this paper, we argue that, further to buoyancy forces, postseismic deformation of earthquakes taking place on the Apennines contributes to the regional deformation. We investigate the interaction between the normal faulting system responsible of the 1997 Umbria-Marche earthquake sequence (Colfiorito fault) and the low angle normal faulting system bordering the sedimentary basins, namely the Altotiberina fault. We set-up a 2D finite element model of the lithosphere-asthenosphere accounting for lateral heterogeneities and investigate how this heterogeneous structure is capable of localizing strain under the Umbria-Marche sedimentary basins, providing a way for the Colfiorito fault to influence the evolution of the Altotiberina fault. We show how the two different length and time scale processes, namely postseismic deformation and buoyancy, are complementary in shaping the Apennines and adjacent sedimentary basins. The high resolution deformation patterns modeled in this study can hardly be reproduced by a model accounting only for external forces such as a rotating or subducting or retreating Adria. | en |
| dc.language.iso | English | en |
| dc.relation.ispartof | Annals of Geophysics | en |
| dc.relation.ispartofseries | 2-3/51 (2008) | en |
| dc.subject | Viscoelastic relaxation | en |
| dc.subject | Aseismic slip | en |
| dc.subject | Body forces | en |
| dc.subject | Normal faults | en |
| dc.title | Postseismic deformation and body forces shaping the Apennines and adjacent sedimentary basins in Umbria-Marche | en |
| dc.type | article | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.subject.INGV | 04. Solid Earth::04.03. Geodesy::04.03.99. General or miscellaneous | en |
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SPOSATO, (1999): Studi paleosismologici attraverso la rottura superficiale prodotta dal terremoto del 14 ottobre 1997 (Umbria-Marche) Atti 18° Convegno Annuale del GNGTS, sessione 10 “Forti terremoti dell’area mediterranea”. RANALLI, G., (1995): Rheology of the earth (second edition, Kluwer Academic Publishers, Dordrecht), pp. 432. RIVA, R., A. AOUDIA, L.L.A. VERMEERSEN, R. SABADINI and G.F. PANZA (2000): Crustal versus asthenospheric relaxation and post-seismic deformation for shallow normal faulting earthquakes: the Umbria-Marche (central Italy) case, Geophys. J. Int., 141, F7-F11. RIVA, R.E.M., A. BORGHI, A. AOUDIA, R. BARZAGHI, R. SABADINI and G. F. PANZA (2007): Viscoelastic relaxation and long-lasting after-slip following the 1997 Umbria- Marche (Central Italy) earthquakes, Geophys. J. Int., 169, 534-546, doi: 10.1111/j.1365-246X.2007.03315.x SABADINI, R. and L.L.A. VERMEERSEN (1997): Influence of lithospheric adn mantle layering on global post-seismic deformation, Geophys. Res. Lett., 24, 2075-2078. SALVI, S., S. STRAMONDO, M. COCCO, M. TESAURO, I. HUNSTAD, M. ANZIDEI, P. BRIOLE, P. BALDI, E. SANSOSTI, G. FORNARO, R. LANARI, F. DOUMAZ, A. PESCI and A. GALVANI (2000): Modeling coseismic displacements resulting from SAR interferometry and GPS measurements during the 1997 Umbria-Marche seismic sequence, Journal of Seismology, 4, 479-499. ZOLLO, A., MARCUCCI, S., MILANA, G. and P. CAPUANO (1999): The 1997 Umbria-Marche (central Italy) earthquake sequence: Insights on the mainshock ruptures from near source strong motion records, Geophys. J. Int., 26 (20), 3165-3168. | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | open | en |
| dc.contributor.author | Riva, R. E. M. | en |
| dc.contributor.author | Aoudia, A. | en |
| dc.contributor.department | Dept. of Earth Observation and Space Systems, Delft University of Technology, Delft, The Netherlands | en |
| dc.contributor.department | Earth System Physics Section, the Abdus Salam International Centre for Theoretical Physics, Trieste, Italy | en |
| item.openairetype | article | - |
| 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 | Dept. of Earth Observation and Space Systems, Delft University of Technology, Delft, The Netherlands | - |
| crisitem.author.dept | Abdus Salam International Centre for Theoretical Physics, Trieste, Italy. | - |
| crisitem.author.orcid | 0000-0002-4754-4502 | - |
| crisitem.classification.parent | 04. Solid Earth | - |
| Appears in Collections: | Annals of Geophysics | |
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| Riva et al.pdf | 438.15 kB | Adobe PDF | View/Open |
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