GEER-EERI-ATC Report on February 2014 Cephalonia, Greece Earthquakes

Two major earthquakes with Mw = 6.0 and Mw = 6.1 hit the Cephalonia Island of Greece on January 26th and February 3rd of 2014, respectively. The reconnaissance mission was unique in two ways: First, it brought together the local, highly qualified earthquake engineering community, with a U.S. collaborative team of the Geotechnical Extreme Events Reconnaissance (GEER) Association, EERI, and the Applied Technology Council (ATC) to form a multidisciplinary 70-person team. Second, the resiliency of the building stock, geostructures, and communities that were subjected to one of the highest sequences of ground motions ever recorded in Europe provided the opportunity to focus on collecting data on good and bad performance marks a new era of reconnaissance.

earthquake damaged waterfront in Cephalonia, Greece

The reconnaissance team, coordinated by Sissy Nikolaou (M.EERI, 2004), worked with representatives from Greek universities and local EERI members to investigate and document observations. Team member Ramon Gilsanz (M. EERI, 2011), a structural engineer with expertise in concrete construction and non-structural damage, represented both EERI and ATC and worked directly with Greek structural engineers to document structural damage.

The reconnaissance report (Version 1) is available at external link icon with observations on: (i) seismological and recorded motions; (ii) geotechnical aspects; (iii) rigid blocks behavior; (iv) structural response; (v) infrastructure lifelines; (vi) nonstructural components response; and (v) economical and societal aspects.