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http://hdl.handle.net/2122/10260
Authors: | Azzaro, R.* Barberi, G.* Cannavò, F.* Cocina, O.* Palano, M.* Scarfì, L.* |
Title: | Assessing seismic efficiency from scalar Moment-rates: an application to Mt. Etna volcano (Italy) | Issue Date: | 19-Apr-2015 | Keywords: | Mt. Etna, moment-rates, seismic efficiency, creeping faults | Subject Classification: | 04. Solid Earth::04.06. Seismology::04.06.02. Earthquake interactions and probability | Abstract: | Here we propose an improved estimation of the scalar seismic (from instrumental and historical catalogues), geodetic and geologic moment-rates for the eastern flank of Mt. Etna. The estimated moment-rates have been compared in terms of seismic efficiency. Results show that all the calculated efficiency values are lower than 40%, i.e., the geodetic moment-rate estimations are generally larger than the seismic and the geologic ones. Although a number of reasons may account for the observed discrepancy, we are confident that a large amount of the deformation affecting the eastern flank occurs aseismically. |
Appears in Collections: | Conference materials |
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Abs. INQUA 2015_Azzaro et al.pdf | extended abstract | 476.93 kB | Adobe PDF | View/Open |
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