Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/581| Authors: | Cinti, F. R.* Cucci, L.* Marra, F.* Montone, P.* |
Title: | The 1997 Umbria-Marche (Italy) earthquake sequence: relationship between ground deformation and seismogenic structure | Journal: | Geophysical Research Letters | Series/Report no.: | 7/26 (1999) | Publisher: | American Geophysical Union | Issue Date: | Apr-1999 | URL: | http://www.agu.org/pubs/toc/gl/gl/ | Keywords: | Structural geology Fractures and faults Seismology Seismicity and seismotectonics Europe |
Subject Classification: | 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology | Abstract: | A field survey performed during the 1997 Umbria-Marche earthquake sequence led us to recognize ground and pavement ruptures associated with the three largest shocks (M>= 5.7). The ruptures are concentrated in narrow bands that, in part, are on and near previously mapped high-angle normal fauts. The geometry of the ground deformation is consistent with the NE-trending extension indicated by CMT focal solutions of the mainshocks. The distribution of aftershocks suggests that the three mainshocks occurred on ~40 degree SW-dipping normal faults. Geological investigations, modelling of expected coseismic elevation changes, and seismic data, suggest that the surface deformation is not the direct result of primary rupture of faults at depth. |
| Appears in Collections: | Article published / in press Manuscripts |
Files in This Item:
| File | Description | Size | Format | Existing users please Login |
|---|---|---|---|---|
| GRLCintietal.pdf | 1.68 MB | Adobe PDF |
Page view(s) 20
304
checked on Apr 17, 2024
Download(s)
50
checked on Apr 17, 2024
