The first version of CRISIS was released in 1986 by Professor Mario Ordaz who is also the lead author of all subsequent versions. The first version of CRISIS was a command line application developed in Fortran language. Subsequent versions were developed in Visual Basic and included a graphical user interface. In 2017 Prof. Ordaz decided to continue the development and support of CRISIS through his company ERN, rebranding it as R-CRISIS. The table below summarizes the main releases of the program.
Release Year Reference Developers
CRISIS 1991  Ordaz M.
CRISIS99 1999  Ordaz M., Aguilar A., Arboleda J.
CRISIS2003 2003  "
CRISIS2007 2007  "
CRISIS2008 2013  Ordaz M., Martinelli F., D’Amico V., Meletti C.
CRISIS2015 2015  Ordaz M., Martinelli F., Aguilar A., Arboleda J., Meletti C., D’Amico V.
R-CRISIS 2017  "
The following contributors kindly provided functions, bug-reports and suggestions.
The 1999, 2007 and 2015 versions of CRISIS were developed with support from II-UNAM, the Instituto de Ingeniería at UNAM, México. For the 2008 version, the Italian Department of Civil Protection kindly provided funding through the INGV the National Institute for Geophysics and Volcanology.
 Ordaz, M. (1991) CRISIS. Brief description of program CRISIS. Internal report, Institute of Solid Earth Physics, University of Bergen, Norway. pp 16.
 Ordaz, M., Aguilar, A., & Arboleda, J. (1999) CRISIS99. Program for computing seismic hazard. UNAM.
 Ordaz, M., Aguilar, A., & Arboleda, J. (2007) CRISIS2007. Program for computing seismic hazard. UNAM.
 Ordaz, M., Martinelli, F., D’Amico, V., & Meletti, C. (2013). CRISIS2008: A flexible tool to perform probabilistic seismic hazard assessment. Seismological Research Letters, Vol. 84, No. 3, pp. 495-504, DOI: 10.1785/0220120067.
 Ordaz, M., Martinelli, F., Aguilar, A., Arboleda, J., Meletti, C., & D'Amico, V. (2015). CRISIS2015. Program for computing seismic hazard.
 Ordaz, M., Martinelli, F., Aguilar, A., Arboleda, J., Meletti, C., & D'Amico, V. (2017). R-CRISIS. Program and platform for computing seismic hazard.