Effects of geological complexities on coseismic displacement: Hints from 2D numerical modelling

Terra Nova

Volumn 20, Issue 3, 2008, Pages 173-179

  Megna, Antonella ^a   Barba, S ^a   Santini, S ^b   Dragoni, M ^c  

^a ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA   (Italy)

^b UNIVERSITY OF URBINO   (Italy)

^c UNIVERSITY OF BOLOGNA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

COSEISMIC PROCESS; CRUSTAL STRUCTURE; DISPLACEMENT; EARTHQUAKE EVENT; EARTHQUAKE MAGNITUDE; EARTHQUAKE PREDICTION; FINITE ELEMENT METHOD; GPS; MICROEARTHQUAKE; NORMAL FAULT; NUMERICAL MODEL; SATELLITE DATA; SLIP RATE; SYNTHETIC APERTURE RADAR;

APENNINES; EURASIA; EUROPE; ITALY; SOUTHERN EUROPE;

EID: 44649202148     PISSN: 09544879     EISSN: 13653121     Source Type: Journal    
DOI: 10.1111/j.1365-3121.2008.00800.x     Document Type: Article

References (30)

1. Aki, K. and Richards, P.G., 2002. Quantitative Seismology, 2nd edn. University Science Books, Sausalito, CA, USA. ISBN 978-0935702965.
2. Alessandrini, B., Filippi, L. and Borgia, A., 2001. Upper-crust tomographic structure of the Central Apennines, Italy, from local earthquakes. Tectonophysics, 339, 479-494.
3. Amato, A. and Cocco, M. (eds.), 2000. Special issue: The Umbria-Marche, Central Italy, Seismic Sequence of 1997-1998. J. Seismol., 4, 5-598.
4. Barba, S. and Basili, R., 2000. Analysis of seismological and geological observations for moderate-size earthquakes: The Colfiorito Fault System (Central Apennines, Italy). Geophys. J. Int., 141, 241-252.
5. Barchi, M.R., Minelli, G. and Pialli, G., 1998. The structural style of the Umbria-Marche fold and thrust belt. Mem. Soc. Geol. It., 52, 557-578.
6. Belardinelli, M.E., Sandri, L. and Baldi, P., 2003. The major event of the 1997 Umbria-Marche (Italy) sequence: What could we learn from DInSAR and GPS data? Geophys. J. Int., 153, 242-252.
7. Cattin, R., Briole, P., Lyon-Cahen, H., Bernard, P. and Pinettes, P., 1999. Effects of superficial layers on coseismic displacements for a dip-slip fault and geophysical implications. Geophys. J. Int., 137, 149-158.
8. w 6.0 Colfiorito fault region (central Italy): A contribution to the understanding of seismotectonic and seismogenic processes. J. Geophys. Res., 108, 2248-2264. doi: 10.1029/2001JB001665.
9. Collettini, C. and Barchi, M. R., 2002. A low-angle normal fault in the Umbria region (Central Italy): A mechanical model for the related microseismicity. Tectonophysics, 359, 97-115.
10. CPTI Working Group, 2004. Catalogo Parametrico dei Terremoti Italiani. versione 2004 (CPTI04). INGV, Bologna. http://emidius.mi.ingv.it/CPTI04/
11. Crippa, B., Crosetto, M., Biescas, E., Troise, C., Pingue, F. and De Natale, G., 2006. An advanced slip model for the Umbria-Marche earthquake sequence: Coseismic displacements observed by SAR interferometry and model inversion. Geophys. J. Int., 164, 36-45. doi: 10.1111/j.1365-246X.2005.02830.x
12. Di Giulio, G., Rovelli, A., Cara, F., Azzara, R.M., Marra, F., Basili, R. and Caserta, A., 2003. Long-duration asynchronous round motions in the Colfiorito plain, central Italy, observed on a two-dimensional dense array. J. Geophys. Res., 108, 2486. doi: 10.1029/2002JB002367.
13. DISS Working Group, 2007. Database of Individual Seismogenic Sources (DISS), Version 3.0.4: A compilation of potential sources for earthquakes larger than M 5.5 in Italy and surrounding areas. http://www.ingv.it/DISS/.
14. Ekström, G., Morelli, A., Dziewonski, A. and Boschi, E., 1998. Moment tensor analysis of the Umbria-Marche earthquake sequence of September-October 1997. Geophys. Res. Lett., 25, 1971-1974.
15. Gudmundsson, A. and Brenner, S., 2003. Loading of a seismic zone to failure deforms nearby volcanoes: A new earthquake precursor. Terra Nova, 15, 187-193. doi: 10.1046/j.1363-3121.2003.00481.x.
16. Hanks, T.C. and Kanamori, H., 1979. A moment magnitude scale. J. Geophys. Res. 84 (B5): 2348-2350.
17. Hernandez, B., Cocco, M., Cotton, F., Stramondo, S., Scotti, O., Courboulex, F. and Campillo, M., 2004. Umbria-Marche (Central Italy) main shocks from the inversion of GPS, DInSAR and near field strong motion data. Ann. Geophys., 74, 1355-1376.
18. Lundgren, P. and Stramondo, S., 2002. Slip distribution of the 1997 Umbria-Marche earthquake sequence: Joint inversion of GPS and synthetic aperture radar interferometry data. J. Geophys. Res., 107, 2316. doi: 10.1029/2000JB000103.
19. Megna, A., Barba, S. and Santini, S., 2005. Normal-fault stress and displacement through finite-element analysis. Ann. Geophys., 48, 1009-1016.
20. Mirabella, F. and Pucci, S., 2002. Integration of geological and geophysical data along a section crossing the region of the 1997-98 Umbria-Marche earthquakes (Italy). Boll. Soc. Geol. It., 1, 891-900.
21. Morgante, A., Barchi, M.-R., D'Offizi, S., Minelli, G. and Pialli, G., 1998. The contribution of seismic modeling to the interpretation of the CROP-03 line. Mem. Soc. Geol. It., 52, 441-455.
22. MSC. Software Corporation, 2006. MSC.Software Corporation - 40 Years of Virtual Product Development Expertise. http://www.mscsoftware.com/ [accessed on 3 March 2008].
23. Pauselli, C. and Federico, C., 2003. Elastic modelling of the Alto Tiberina normal fault (central Italy): Geometry and lithological stratification influences on the local stress field. Tectonophysics, 374, 99-113.
24. Salvi, S., Stramondo, S., Cocco, M., Tesauro, M., Hunstad, I., Anzidei, M., Briole, P., Baldi, P., Sansosti, E., Fornaro, G., Lanari, R., Doumaz, F., Pesci, A. and Galvani, A., 2000. Modeling coseismic displacements resulting from SAR interferometry and GPS measurements during the 1997 Umbria-Marche seismic sequence. J. Seismol., 4, 479-499.
25. Santini, S., Baldi, P., Dragoni, M., Piombo, A., Salvi, S., Spada, G. and Stramondo, S., 2004. Monte Carlo inversion of DInSAR data for dislocation modeling: Application to the 1997 Umbria-Marche seismic sequence (central Italy). Pure Appl. Geophys., 161, 817-838. doi: 10.1007/s00024-003-2474-1.
26. Savage, J.C., 1998. Displacement field for an edge dislocation in a layered half-space. J. Geophys. Res., 103, 2439-2446.
27. Stramondo, S., Tesauro, M., Briole, P., Sansosti, E., Salvi, S., Lanari, R., Anzidei, M., Baldi, P., Fornaro, G., Avallone, A., Buongiorno, M.F., Franceschetti, G. and Boschi, E., 1999. The September 26, 1997 Colfiorito, Italy, earthquakes: Modeled coseismic surface displacement from SAR interferometry and GPS. Geophys. Res. Lett., 26, 883-886.
28. Tryggvason, A., Rögnvaldsson, S.Th. and Flóvenz, Ó.G., 2002. Three-dimensional imaging of the P- and S-wave velocity structure and earthquake locations beneath Southwest Iceland. Geophys. J. Int., 151, 848-866.
29. Zhao, S., Müller, R.D., Takahashi, Y. and Kaneda, Y., 2004. 3-D finite-element modelling of deformation and stress associated with faulting: Effect of inhomogeneous crustal structures. Geophys. J. Int., 157, 629-644. doi: 10.1111/j.1365-246X.2004.02200.x.
30. Zollo, A., Marcucci, S. and Milana, G., 1999. The 1997 Umbria-Marche (central Italy) earthquake sequence: Insights on the mainshock ruptures from near source strong motion records. Geophys. Res. Lett., 26, 3165-3168.