RT Journal Article
T1 Active faulting in the central Betic Cordillera (Spain): Palaeoseismological constraint of the surface-rupturing history of the Baza Fault (Central Betic Cordillera, Iberian Peninsula)
A1 Castro, J.
A1 Martin-Rojas, Ivan
A1 Medina-Cascales, I.
A1 García-Tortosa, Francisco Juan
A1 Alfaro, Pedro
A1 Insua Arévalo, Juan Miguel
AB This paper on the Baza Fault provides the first palaeoseismic data from trenches in the central sector of the Betic Cordillera (S Spain), one of the most tectonically active areas of the Iberian Peninsula.With the palaeoseismological data we constructed time-stratigraphic OxCal models that yield probability density functions (PDFs) of individual palaeoseismic event timing. We analysed PDF overlap to quantitatively correlate the walls and site events into a single earthquake chronology. We assembled a surface-rupturing history of the Baza Fault for the last ca. 45,000 years. We postulated six alternative surface rupturing histories including 8–9 fault-wide earthquakes. We calculated fault-wide earthquake recurrence intervals using Monte Carlo. This analysis yielded a 4750–5150 yr recurrence interval. Finally, compared our results with the results from empirical relationships.Our results will provide a basis for future analyses of more of other active normal faults in this region. Moreover, our results will be essential for improving earthquake-probability assessments in Spain, where palaeoseismic data are scarce.
PB Elsevier
SN 0040-1951, online ISSN: 1879-3266
YR 2018
FD 2018-06-20
LK https://hdl.handle.net/20.500.14352/12193
UL https://hdl.handle.net/20.500.14352/12193
LA eng
NO Ministerio de Economía y Competitividad (MINECO)
NO Caja Rural de Jaén
NO Universidad de Jaén
NO Universidad de Alicante
DS Docta Complutense
RD 18 abr 2025