Los grandes terremotos del siglo XV en Cataluña: Claves para la peligrosidad sísmica regional

Antoni Roca,Josep Batlló,Janira Irizarry

doi:10.5209/fite.57690

Abstract

Catalonia, in the NE part of the Iberian Peninsula, was shaken by large earthquakes in the XV Century. As these are the largest events consigned in the regional catalogues of seismicity, a proper knowledge of their epicentral parameters and their effects is essential for any further analysis of regional seismic hazard and risk. We review the present knowledge of these important events and some applications of the obtained results for the calculation of scenarios and other products really useful for civil protection for present earthquakes.

Highlights

Introduction2. The memory of the earthquakes 3
The seismicity of Catalonia, in the NE part of the Iberian Peninsula, is moderate
Tierra. 29 (2017): 85 -99 and Srivastava, 1991) and the present structural framework of the NE of the Iberian Peninsula is situated within the context of Mediterranean continental collision on the convergence of African and European tectonic plates (Olivera et al, 2003)

Summary

Introduction

The seismicity of Catalonia, in the NE part of the Iberian Peninsula, is moderate. Geologically, Iberia is a microplate with a complex evolution Present knowledge points to an epicentre near the Aran Valley, in the Pyrenees, althoug the available sparse records introduce large uncertainties in the results This is not the case of the three large events on 19th March 1427 (Imax VIII), 15th May 1427 (VIII) and 2nd February 1428 (IX), occurred within a short period of time and clustered in space in the triangle Amer-Olot-Puigcerdà. As these are the largest earthquakes in the NE Iberian region for which information of their effects on the territory is available, it is of great interest obtaining the most accurate seismological information about them. On the sections we will describe how these earthquakes have been studied, the present knowledge about them, and their contribution to the assessment of regional seismic hazard and risk

The memory of the earthquakes

Methodology used for the analysis of historical earthquakes

The series of earthquakes

B VI-VII

Earthquake of 2 February 1428

Regional seismic hazard and risk

Conclusions