Spain: flood hazard by return period

Official flood hazard zones from Spain's Sistema Nacional de Cartografía de Zonas Inundables (SNCZI), covering three return periods (10, 100 and 500 years) plus coastal flood extent — the same public data behind Spain's Consorcio de Compensación de Seguros risk assessments.

Toggle layers in the control at the top right. T10 = 10-year return period (frequent, high probability), T100 = 100-year (the standard planning benchmark), T500 = 500-year (extreme, low probability).

Source: SNCZI, Ministerio para la Transición Ecológica y el Reto Demográfico. Live WMS layer, rendered directly.