Newmark displacement data for low to moderate magnitude events in the Betic Cordillera

Abstract

Land-use decisions in relation to seismic-induced landslide hazard are usually made through the preparation of haz- ard maps. The rigid-block method is probably the most used for this purpose. Under this method, Newmark displace- ment is computed for each slope unit and this displace- ment is used as a guide for establishing categories of haz- ard. At present, most relations used for computing New- mark displacement are established from moderate-to-high magnitude earthquakes (Mw ≥6.5). This data article pro- vides Newmark displacements computed from accelerograms recorded in the Betic Cordillera for low-to-moderate mag- nitude earthquakes (Mw = 3.5–6.3). Records come from the Spanish Strong Ground Motion database (Instituto Geográfico Nacional). Newmark displacements were computed focusing on yield accelerations frequently recorded in such scenarios (0.02, 0.03, 0.04, 0.05, 0.06, 0.08 and 0.10), although higher accelerations were also considered (0.125, 0.15, 0.20, 0.25 and 0.30 g’s). These data are useful for the study of the hazard