A laboratory perspective on earthquakes: from the nano to the megathrust scale.
Spagnuolo E., Di Toro G., Nielsen S., Aretusini S., Vannucchi P.
Relazione su invito
IV - Geofisica e fisica dell'ambiente
Aula 32C-1 - Venerdì 21 h 09:00 - 12:00
» Download abstract
The earthquakes physics is governed by variables (i.e. friction) operating at different spatial and temporal scales. Not all these variables are accessible from remote observations and experiments are becoming increasingly relevant to provide a ready access to the experimental seismic source. At INGV (Rome, IT) we avail of a powerful rotary shear apparatus (SHIVA) able to apply close to natural earthquake deformation conditions on 50 mm rock samples. Our investigations discuss the micro-physics governing laboratory earthquakes and challenge our previous knowledge of fault stability challenged by the unexpected behaviour of recent tsunamigenic events (e.g. 2011 Mw 9 Tohoku).