Fault slip-rates and geometries, from surface observations to seismic hazard
Dr. Joanna Faure Walker (University College London)
Probabilist seismic hazard assessments can be used by stakeholders to calculate earthquake hazard and risk. These assessments are commonly based on historical records of previous events that cover up to hundreds of years. However, average earthquake recurrence intervals on individual faults are commonly longer than the historical records and therefore we need to look to the geological record. The central Italian Apennines provides an area where long-term geological fault slip rates and shorter term rates from historical records and GPS can be compared. Furthermore, the details of fault geometry along faults and the implications for seismic hazard can be interpreted.