What are the sources for earthquake risk?
• The epicenter locations of significant earthquakes during this century. The quality of the additional information is significantly improved in recent years. Quakes in the 3.0 range are included only for the very recent past, while large quakes are tracked back to the turn of the century. • An area analysis of earthquake risk and damage derived from USGS models. These influence areas of these sources are then applied to the community locations.
