For Santiago, Dominican Republic, the project team worked with local experts from the National Geological Survey (SGN) and the Autonomous University (UASD) at compiling, reviewing, and preparing a new seismic catalogue to be used in hazard calculations for Hispaniola. The team has also prepared the national database of active faults, using the information compiled in the CCARA project and additional information provided by SGN (i.e. data and reports). The project is now using the catalogue and fault data to construct the national PSHA model for the Dominican Republic. A preliminary version has been completed, and construction of the final model is underway.
For Cali, Colombia, the project added to the national model proposed by Arcila et al. (2020) a possible fault located over the city (i.e. Cauca-Cali-Patia fault), in accordance with the seismic zonations used in the microzonation study for Santiago de Cali (Ingeominas-Dagma, 2005), and the Colombian building code (AIS, 2009). For Quito, Ecuador, the project selected the model of Beauval et al. (2018), composed of shallow and subduction seismic sources characterized using an ISC-based catalogue and active shallow fault sources considering geodetic slip-rates assuming a 50% of aseismic slip.
Now, the project is consolidating the available geological, geophysical, and geotechnical data for each of the three cities needed to compute site-response (response of the local soil during seismic shaking). Future versions of the OpenQuake engine will support site response through detailed amplification functions and its corresponding uncertainty.