Forward Induced Seismic Hazard Assessment – FISHA Application to the Synthetic Seismicity Catalogue by Discrete Element Fluid Injection Modeling

The Forward Induced Seismic Hazard Assessment – FISHA (Hakimhashemi et al. 2014a,b) is a general workflow which links the output of hydromechanical-numerical models of geothermal reservoirs, either in terms of seismicity catalogue (Hakimhashemi et al. 2014a) or in the form of spatiotemporal changes in the stress field (Hakimhashemi et al. 2014b), to a time-dependent probabilistic seismic hazard assessment in terms of the time dependent occurrence rate of the Seismic Events of Economic Concern – SEECo. SEECo refer to the seismic events of low to moderate magnitudes which may not be destructive but can cause economic losses due to damage to the infrastructure (see also Grünthal, 2014). Therefore, the FISHA has the capability to a priori test different stimulation/production strategies and to develop a priori knowledge about how the reservoir should be treated to mitigate the risks associated with SEECo.