Albert Aguilar, Stanford University, Stanford, CA, United States; Universidad Nacional de Colombia, Bogota, Colombia, German A Prieto, Universidad Nacional de Colombia, Departamento de Geociencias, Bogota, Colombia, Patricia Pedraza, Servicio Geológico Colombiano, Bogotá, Red Sismológica Nacional de Colombia, Bogotá D.C., Colombia, Nelson E Pulido Hernandez, National Research Institute for Earth Science and Disaster Prevention, Earthquake and Tsunami Research Division, Tsukuba, Japan and Gregory C Beroza, Stanford University, Department of Geophysics, Stanford, CA, United States