By Jonathan P. Stewart, Scott J. Brandenberg, John Fletcher, James R. Gingery, Kenneth W. Hudnut, Tim McCrink, Jorge F. Meneses, Diane Murbach, Tomas Rockwell, John Tinsley, David Ayres, Geoff Faneros, Ling-ho, Tara Hutchinson, Dong Youp Kwak, Walter Lopez, Eulalia Masanal, Karl Mueller, Cynthia Pridmore, Carlos Reyes, Emel Seyhan, Robert Sickler, Ronald Spelz, Lisa Star, Orlando Teran, Mario Valdez, and Richard Wood.
June 15, 2010. Geotechnical Extreme Events Reconnaissance.
The GEER reconnaissance effort occurred in multiple phases with many participants, and covered the region. The GEER reconnaissance teams’ main goal was to quantify the spatial extent and amplitude of surface fault rupture, ground failure, liquefaction, landslides, and geotechnicalrelated damage to bridges, piers, buildings, lifeline systems and critical structures. Each of the teams was equipped with digital cameras, maps, personal computers, and GPS units for recording track logs and site locations. This reconnaissance report has been organized into chapters that describe the geological and seismological setting (Chapter 2), surface fault rupture (Chapter 3), recorded earthquake ground motions (Chapter 4), liquefaction (Chapter 5), and performance of canals, levees and earthen dams (Chapter 6).
Read the Report: Preliminary Report on Seismological and Geotechnical Engineering Aspects of the April 4 2010 Mw 7.2 El Mayor-Cucapah (Mexico) Earthquake (10.2 MB PDF)
