Proceedings of the 12th International INQUA meeting on paleoseismology, active tectonic and archaeoseismology

448 1 2 T H I N T E R N AT I O N A L I N Q U A M E E T I N G O N PA L E O S E I S M O L O G Y , A C T I V E T E C T O N I C S A N D A R C H A E O S E I S M O L O G Y ( PATA ) , O C T O B E R 6 T H - 1 1 T H , 2 0 2 4 , L O S A N D E S , C H I L E PATA Days 2024 K E Y W O R D S Archaeoseismology, Ancient earthquakes, Neolithic, Bronze Age, Roman times, Spain (1) Dpto. Geología, Escuela Politécnica Superior de Ávila, Universidad Salamanca, Spain. (2) Instituto Geológico y Minero de España (IGME-CSIC). Madrid. Spain. (3) Dpto. Geología y Geoquímica, Facultad de Ciencias, Universidad Autónoma de Madrid. Madrid. Spain. (4) Dpto. Edafología, E.T.S.I. Agrónomos, Universidad Politécnica de Madrid. Madrid. *Email: pgsilva@usal.es, j.elez@usal / ma.rodriguez@igme.es, r.perez@igme.es / jorge.giner@uam.es / elvira.roquero@upm.es Silva P.G. (1) Rodríguez-Pascua,M.A. (2) Pérez-López,R. (2) Giner, J.L., (3) Elez, J. (1) Roquero, E. (4) ANCIENT EARTHQUAKES IN THE IBERIAN PENINSULA: FROM THE MIDDLE AGES TO NEOLITHIC TIMES A B S T R A C T The present work summarizes the state of the art on ancient events in the Iberian Peninsula. Since the first studies in the archaeological site of the old Roman city of Baelo Claudia in the Gibraltar Strait in the early 2000 decade several ancient events occurred before the 1000 CE have been recovered from archaeoseimological research. At present about 15 new ancient events have been studied covering several periods since the Neolithic to the Middle Ages, most of them included in the Catalogue of Geological Effects of Earthquakes in Spain (Silva et al., 2019). These events help to extend to the geological past the record of earthquakes as far as 5000 – 5500 yr BP and to get a more complete scenario on the long-term recurrent behaviour (> 200-250 years) for strong events along the most important crustal structures in the southern half of the Iberian Peninsula (eg. Eastern Betic Shear Zone and Guadalquivir Fault). I N T R O D U C T I O N The oldest seismic evidence in Spain is recorded in the Late- Bronze Age site of La “Tira del LIenzo” (2200-1550 BCE) in the Eastern Betic Cordillera (Ferrater et al., 2015). At this site, primary strike-slip surface faulting of several centimetres along the Lorca-Alhama de Murcia Fault is recorded (Fig. 1). However, continuous research uncovered more ancient earthquakes during the Neolithic period (c. 5000 BP) in cave systems around the Málaga and Granada provinces in South Spain (Fig.1), These ancient records are related to secondary earthquake effects in speleothems and karstic vault collapses (Silva et al., 2019). Since