Presence of tsunamis and storms boulders on the rocky shores of the Irta mountain range (el Baix Maestrat; País Valencià; Spain), The coast of the Iberian Peninsula has few records of extreme wave events, storms or tsunamis. In this work we present the morphometric study of some boulder ridges along the rocky coasts of the Irta mountain range (Valencian Country, East of Spain). The study has located six settings with boulders weighting 1.5 T in average, at an average distance from the coast line of 15.5 m and 2.3 m a.s.l. Boulder quarring areas have been identified, as well as their imbricate pattern, which is oriented to 119.5º. That is coincident with the directions of the tsunamis coming from Algeria. The equations of Nott and Engel & May have been applied to each block to calculate the run-up of tsunamis or storms capable of generating these deposits. Keywords: rocky shores, morphometry, boulders, tsunamis, Irta mountain range, Castelló.