Obtaining a detailed understanding of seismic hazards is an important societal application of the geosciences; highlighted by multiple and independent groups working in parallel in different locations.Furthermore, replication between groups could be viewed as verifying results, which is critical because of the difficulty in validating seismic hazard models.For this reason, we released the Active Tectonics of the Andes (ATA) v.1.0,which is the first iteration of an open-source and collaborative endeavor to be utilized by the community, but it may also be commented on or edited by individuals concerned with seismic hazards.We make no claim that ATA is complete; in fact, we claim the opposite, and invite participation from the community in the continual improvement of the ATA database.