I was recently aware of this event in the Atlantic, thought to have been produced in Horseshoe Fault, of magnitude ¿¿¿Mw=8.0??? but not found much references on this.
Why it was non-tsunamigenic? Please give references about this event, with description, impact on Spanish and Portuguese coasts and so on.
Some one provide the reference Gracia at al (2010) for this, but I do not have the full citation.