Tomographic images of the Iberian subcrustal
lithosphere and asthenosphere.
In surface layer of the ingots torsions or subcrustal
porosity were not detected.
Higher magnitude subcrustal
earthquakes are caused by a tensional stress regime within the subducting plate in a depth range of 45 to 65 km (Rogers, 1998), the February 2001 Nisqually earthquake (M = 6.
11;35] is mainly associated with the post-glacial rebound, and may also be influenced by the structure of the crust and subcrustal
processes (Kakkuri & Wang 1998).
It is interesting that Vp contrasts at subcrustal
depths follow the same trend of the Villa Maria-Termales fault.