The OLLIN 669-IGCP project: First steps of a Fault2SHA approach in Latin American countries.

LACAN P.; PRIETO G.; BENAVENTE C.; ARCILA M.; GARCÍA-MAYORDOMO J.; AUDIN L.; PERUZZA L.; MOREIRAS S.; ORTUÑO M.; AUDEMARD F.; ZÚÑIGA R.; LÓPEZ M.C.

Workshop; FAULT 2H. V Workshop; 2020

The OLLIN project aims at setting up a new collaborative framework focused on Latin America and based on the European Fault2SHA initiative, taking advantage of an already existing collaboration background among specialists from both sides of the Atlantic. It structures and represents a network of 97 collaborators from 15 countries since 2019 for the next 4 years. Its main objective, similarly to Fault2SHA, is to bring together earthquake researchers and hazard modelers with a common interest: the inclusion of fault geological data into seismic hazard assessment (SHA). OLLIN project comes in a right moment as earthquake geology research is quickly developing in Latin America and there is an urgent need to incorporate these data in the SHA of main populated centers located nearby major active faults. OLLIN (from Tlalollin, earthquake; and ollin, movement, in Nahuatl language) is centered on three major fault zones: the Transmexican Volcanic belt, in México, the Northern South American Plate Boundary, which extends from Ecuador to Colombia and Venezuela, and the Central and Southern Andes, including fault systems from Perú, Argentina and Chile. For each one of these areas, regional working groups have been set, and it is foreseen to host workshops focused on analyzing the available geological data, ways for improving it, and learning of fault-hazard modelling methods. Dissemination of the results to society is a crucial aspect of the project, which will be ensured by the participation of stakeholders from civil protection, geological surveys and other end-users in special meetings. The OLLIN project is funded by the International Geoscience Program (IGCP) of UNESCO under the code IGCP669 ?Identification of seismogenic faults in populated areas of Latin America and its incorporation into seismic hazard assessment?. Most of the funding of the project is allocated for student grants to attend workshops and to support educational and dissemination activities.