@misc{10481/85196,
year = {2023},
month = {8},
url = {https://hdl.handle.net/10481/85196},
abstract = {In this work, a method for the fast evaluation of seismically-induced landslides is
applied at regional scale in the Granada Basin (southern Spain). The methodology
is based on the concept of rigid block but takes into account the variability in input
data (geotechnical properties, failure depth and saturation state of the materials)
through the use of a logical tree scheme. Input data were combined and evaluated
using five different Newmark displacement empirical relations, which are
automatically weighted to obtain a final co-seismic landslide susceptibility
map. A Geographic Information System system was used to obtain the
resulting maps considering the different branches and weights of the logic tree
through an specifically developed automatic code written in Phyton. The
landslides induced by the 2021 Mw 4.4 events of the Santa Fe seismic series
have been used to validate the methodology. This is later used as input along with
the road network to analyze the distribution of areas of different susceptibility
level. The results obtained show that 1.73% of the total area is characterized by
moderate to high susceptibility, being the southern and eastern sections of the
Granada basin were more vulnerable slopes are found. When considering only
zones around the road network (50m buffer), it is found that 2.11% of slopes
around highways and 1.33% of road slopes have moderate to high susceptibility,
especially the A-92 highway and the A-338 road. These roads traverse areas with
steep slopes and a combination of hard and soft materials, which increases the
susceptibility of disrupted landslides. On the other hand, in more densely
populated areas such as the metropolitan area of Granada, the susceptibility is
lower due to their location on terrain with low to negligible slopes. The results are
of interest for authorities managing slope stabilities because they allow
establishing effective and locally-based seismic forecast works in order to
minimize the damage of future events.},
organization = {Projects PID
2021-124155NB-C31},
organization = {PID 2022-136678NB-I00 AEI/FEDER
from the Spanish Investigation Agency},
organization = {Research group
“Planetary Geodynamics, Active Tectonics and Related Hazards”,
UCM-910368 of the Complutense University of Madrid.},
organization = {Institut Cartogràfic Valencia, by the
Agency Valencian Security and Response to Emergencies
(Generalitat Valenciana) and by the Provincial Consortium of
Alicante Firefighters},
organization = {Research VIGROB20-184 (University of Alicante)},
publisher = {Frontiers},
keywords = {Earthquakes},
keywords = {Seismically-induced landslide},
keywords = {Logic-tree},
keywords = {Susceptibility},
title = {Evaluation of road network slopes susceptibility to seismically-induced landslides in the Granada Basin (S Spain)},
doi = {10.3389/feart.2023.1226894},
author = {Román Herrera, J. C. and Garrido Manrique, Jesús},
}