Barba, S. and Finocchio, D. and Sikdar, Elena and Burrato, P. (2013) Modelling the interseismic deformation of a thrust system: seismogenic potential of the Southern Alps. Terra Nova 25 (3), pp. 221-227. ISSN 0954-4879.
Abstract
This article focuses on the Montello thrust system in the Eastern Southern Alps as a potential seismogenic source. This system is of particular interest because of its lack of historical seismicity. Nevertheless, the system is undergoing active deformation. We developed a finite-element model using visco-elasto-plastic rheology. The free parameters of the model (essentially, the locking status of the three thrusts included in the study), were constrained by matching the observed horizontal GPS and vertical levelling data. We show that the amount of interseismic fault locking, and thus the seismic potential, is not necessarily associated with the fastest-slipping faults. More specifically, the locked Bassano thrust has a greater seismic potential than the freely slipping Montello thrust. The findings suggest that faults with subtle evidence of Quaternary activity should be carefully considered when creating seismic hazard maps.
Metadata
| Item Type: | Article |
|---|---|
| School: | Birkbeck Faculties and Schools > Faculty of Science > School of Natural Sciences |
| Depositing User: | Administrator |
| Date Deposited: | 06 Jun 2013 15:09 |
| Last Modified: | 02 Aug 2023 17:05 |
| URI: | https://eprints.bbk.ac.uk/id/eprint/7323 |
Statistics
Additional statistics are available via IRStats2.
Archive Staff Only (login required)
