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COMPILATION OF ACTIVE FAULT DATA IN PORTUGAL FOR USE IN SEISMIC HAZARD ANALYSIS
Nemser, E.S.; Cabral, J.; Terrinha, P.; Vilanova, S.; Besana-Ostman, G.M.; Bezzeghoud, M.; Borges, J.F.; Brum da Silveira, A.; Carvalho, J.; Dias, R.P.To estimate where future earthquakes are likely to occur, it is essential to combine information about past earthquakes with knowledge about the location and seismogenic properties of active faults. For this reason, robust probabilistic seismic hazard analysis (PSHA) integrates seismicity and active fault data. Existing seismic hazard assessments for Portugal rely exclusively on seismicity data and do not incor...
NEW SEISMIC SOURCE ZONE MODEL FOR PORTUGAL AND AZORES
Vilanova, S.P.; Oliveira, C.S.; Brum da Silveira, A.; Madeira, J.; Nemser, E.S.; Fonseca, J.; Arvidsson, R.; Besana-Ostman, G.M.; Bezzeghoud, M.The development of seismogenic source models is one of the first steps in seismic hazard assessment. In seismic hazard terminology, seismic source zones (SSZ) are polygons (or volumes) that delineate areas with homogeneous characteristics of seismicity. The importance of using knowledge on geology, seismicity and tectonics in the definition of source zones has been recognized for a long time [1]. However, the d...
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