When a shallow earthquake occurs offshore, if the magnitude exceeds 7.5 and the relative movement has an important vertical component, a tsunami may be triggered.
Commissioned by the Directorate General for Civil Protection, Principia analysed the tsunami hazard all along the Spanish coastline. We have also carried out this type of studies for the Andaman Islands and a number of sites in the Caribbean, Algeria, Huelva and Chile. The results of these studies are generally expressed in terms of runout against probability of occurrence, as well as the warning time available for each originating source.
The video shows the results of a hydrodynamic simulation with DELFT 3D for a postulated scenario, showing the waves propagating from an 8.5 earthquake occurring offshore from the Chilean coast.