Challenges in Identifying and Characterising Seismogenic Faults in Non-Plate Boundary Settings
Challenges and issues related to identification and characterization of active (seismogenic) and non-seismogenic faults in stable continental regions (SCR) as well as less active non-plate boundary settings have been addressed in recent studies for siting of critical and non-critical facilities. These include issues related to long recurrence intervals for faults that are capable of generating earthquakes in the contemporary tectonic stress environment; temporal and spatial clustering of earthquakes, limited stratigraphic and geomorphic markers to evaluate long-term history and event chronologies; uncertainties in evaluating the origin and mechanisms of Quaternary deformation features that may or may not be of tectonic origin; alternative methods and approaches that can be used to evaluate or constrain timing of most recent deformation, and challenges in estimating the size of maximum earthquakes that may occur. This symposium seeks presentations that summarize case studies or study results that address these issues or illustrate approaches and methods that have been used to identify seismogenic faults and characterise uncertainties in source characterisation parameters (e.g., location, magnitude and recurrence) for both probabilistic or deterministic hazard analysis. Case studies that document approaches that can be used to document that faults have not moved in the contemporary tectonic regime are of equal importance in siting critical facilities and will also be addressed in this symposium.
Kathryn Hanson, Johann Neveling and Ryan Coppersmith