We present an approach for seismic hazard assessment that considers a hybrid source model composed of faults and zones containing the remaining seismicity. The seismic-moment rate is used to distribute seismic potential, avoiding double counting. The approach is applied in SE Spain, a region of low-to-moderate seismicity. Results show a concentration of expected accelerations around fault traces using the hybrid approach, which is not appreciated in the classic approach using zones exclusively.

In the Metropolitan District of Quito is located on or very close to five segments of reverse blind faults. The city is divided into five areas: south, south-central, central, north-central and north. For each of the urban areas, elastic response spectra are calculated considering the maximum magnitude. Subsequently, the recurrence period of earthquakes of maximum magnitude are presented.