Newmark displacements were computed in accordance with previously published algorithms. These data have been used in the study by Delgado et al.Įngineering Geology, Seismically induced landslidesĪccelerograms were recorded and provided by the Spanish Strong Ground Motion Network, operated by the Instituto Geográfico Nacional (IGN).Īccelerograms were processed using SeismoSignal software. These data are useful for the study of the hazard in seismic scenarios of low-to-moderate magnitude, very frequent in practice. 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). Records come from the Spanish Strong Ground Motion database (Instituto Geográfico Nacional). This data article provides Newmark displacements computed from accelerograms recorded in the Betic Cordillera for low-to-moderate magnitude earthquakes (Mw = 3.5–6.3). At present, most relations used for computing Newmark displacement are established from moderate-to-high magnitude earthquakes (Mw ≥ 6.5). Under this method, Newmark displacement is computed for each slope unit and this displacement is used as a guide for establishing categories of hazard. The rigid-block method is probably the most used for this purpose.
Land-use decisions in relation to seismic-induced landslide hazard are usually made through the preparation of hazard maps.
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