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Andorra Recerca + Innovació
Publications
Publications (55)
In the Pyrenees, sporadic permafrost also exists at lower altitudes, where several active rock glaciers have been also identified. In this mountain range, the presence of permafrost has been mostly detected through the mapping of geomorphological indicators (rock glaciers, protalus lobes, frost mounds, etc), bottom temperature snow measurements, ge...
Elsevier congratulation for publishing open access articles between 2020-2022 linked to the United Nations Sustainable Development Goals, helping to tackle some of the world's greatest challenges. Paper: Palaeoenvironmental changes in the Iberian central system during the Late-glacial and Holocene as inferred from geochemical data: A case study of...
On 2022-02-01, the mainshock of a seismic sequence that started in 2021 struck between l'Alt Urgell (Catalonia) and Andorra la Vella (Andorra) in the Central Pyrenees area. This magnitude (Mw) 4.0 earthquake, which alerted the population of the vicinities, was followed by low-magnitude aftershocks. In this work, we aim to obtain a new catalog throu...
This paper describes the main outcomes of the European research project MOMPA (Monitoring of Ground Movements and Action Protocol). Its objective is to provide useful tools for the prevention and management of risks due to slope movements, based on the satellite monitoring InSAR (Interferometric SAR) technique. The project includes two parts: risk...
The Iberian Central System (ICS) is a clue region to reveal Mediterranean/Atlantic inferences over Iberia. We present a multidisciplinary study from western Spain conducted in the Navamuño depression (ND), covering the last 16.8 ka (cal BP). A reconstruction of the palaeotemperature from the resulting geochemical data highlights four cold and dry i...
Co-financed by the Interreg V Program in Spain-France-Andorra (POCTEFA) the European project MOMPA (MOnitoring of ground Movements and Action Protocol) study the landslide hazard in the Eastern Pyrenees. It groups together scientific partners from CTTC (Telecommunications Centre of Catalonia), ICGC (Cartographical and Geological Institute of Catalu...
El objetivo del proyecto POCTEFA - MOMPA (MOnitorización de Movimientos del terreno y Protocolo de Actuación) esproporcionar una herramienta técnico-operativa útil para la prevención y la gestión de los riesgos ocasionados pormovimientos de ladera, a nivel transfronterizo, basada en la técnica de seguimiento satelital InSAR. (Interferometría Radara...
On May 5th, 2013 a planar rock slide (~450 m³)occurred in the village of La Riba (NE Spain), which forced the closure of the road C-240z for 6 months. This slide left a hanging block (~130 m³)suspended on the slope forcing a controlled blasting, followed by rock slope stabilization works. The volume of rock displaced during the both events was dedu...
The Navamuño peatbog (Sierra de Béjar, western Spain) is a ~14 ha pseudo-endorheic depression with boundaries defined by a lateral moraine of the Cuerpo de Hombre paleoglacier and fault-line scarps on granite bedrock. The stratigraphy of the Navamuño peatbog system is characterized here using borehole data to a depth of 20 m. An integrated interpre...
The Navamuño peatbog (Sierra de Béjar, western Spain) is a ∼14 ha pseudo-endorheic depression with boundaries defined by a lateral moraine of the Cuerpo de Hombre paleoglacier and fault-line scarps on granite bedrock. The stratigraphy of the Navamuño peatbog system is characterized here using borehole data to a depth of 20 m. An integrated interpre...
To define the seismic potential of the left-lateral strike-slip Alhama de Murcia fault (SE Iberian Peninsula), we calculated its slip rate by measuring offset linear features of known age using a morphotectonic analysis. The Lorca-Totana section of the fault yielded a minimum slip rate of 1.0 ± 0.2 mm/a for the past 30 ka, based on a channel whose...
Three-dimensional paleoseismology in strike-slip faults with slip rates less than 1 mm per year involves a great methodological challenge. We adapted 3D trenching to track buried channels offset by the Alhama de Murcia seismogenic left-lateral strike-slip fault (SE Iberia). A fault net slip of 0.9 ± 0.1 mm/yr was determined using statistical analys...
The Alhama de Murcia and the Carboneras faults are the most prominent geologic structures within the Eastern Betic Shear Zone (EBSZ), located in SE Spain. Using continuous and campaign GPS observations conducted during the last decade, we were able to confirm the continuing tectonic activity of these faults by quantifying their geodetic slip-rates...
The slip rate of a seismogenic fault is a crucial parameter for establishing the contribution of the fault to the seismic hazard. It is calculated from measurements of the offset of linear landforms, such channels, produced by the fault combined with their age. The three-dimensional measurement of offset in buried paleochannels is subject to uncert...
The Alhama de Murcia and the Carboneras faults are the most prominent geologic structures that form part of the Eastern Betic Shear Zone (EBSZ). Using continuous and campaign GPS observations conducted during the last decade, we were able to confirm the continuing tectonic activity of these two faults by quantifying their geodetic slip-rates and co...
The Carboneras fault zone (CFZ) is a prominent onshore–offshore strike–slip fault that forms part of the Eastern Betic Shear Zone (EBSZ), located in SE Spain. In this work, we show for the first time, the continuing tectonic activity of the CFZ and quantify its geodetic slip-rates using continuous and campaign GPS observations conducted during the...
En este trabajo presentamos el campo de deformación cortical de la península Ibérica y norte de Marruecos, basado en el análisis de observaciones continuas de GPS (CGPS) de los últimos cinco años, combinado con observaciones de campañas (SGPS) de la red CuaTeNeo en las Béticas Orientales. Las estaciones CGPS analizadas provienen de varias redes GNS...
We present a block model of the Ibero-Maghrebian region, which explains the geodynamic behavior of this complex plate boundary. The proposed model, based on the compilation of the published GPS velocity fields, consists of5 blocks: two blocks that represent the African and Eurasian plates, a block which includes the Rif and the Alboran sea, a block...
We present a GPS-derived horizontal velocity field of the Carboneras Fault Zone (ZFC), located in the Eastern Betic Shear Zone in SE Spain. The stations located on the both side of the fault show different velocity orientations, with magnitudes ranging from 1.5 to 2 mm/yr. The left-lateral slip rate inferred for the fault is 1.3±0.2mm/yr while the...
A new continuous GPS network was installed under the umbrella of a research project called ‘‘Geociencias
en Iberia: Estudios integrados de topografıa y evolucion 4D (Topo-Iberia)’’, to improve understanding of
kinematic behavior of the Iberian Peninsula region. Here we present a velocity field based on the analysis of the
4 years of data from 25 st...
This work provides an updated kinematic block model for the Betic-Rif region in western Mediterranean based on the compilation of the most recent GPS measurements. The study zone includes the tectonic plate boundary between the Nubia and Eurasia plates, where the exact boundary between the two plates is diffuse. The complexity of the plate boundary...
The NNW-SSE shortening between Eurasian and African plates takes place at rate of 4-6 mm/yr and is mostly absorbed, in the Iberian part, by the EBSZ (SE Spain). The Alhama de Murcia fault (AMF) is one of the faults in this system. It is generally considered that the AMF has a slow slip rate (on the order of 0.1 mm/yr, although associated to high un...
The AMF has been identified as seismogenic but its seismic characterization requires a better establishment of the seismic sequence. To this aim, we studied three trenches at El Saltador where we observed interstratified, fine-grained units with no internal structure that show maximum thickness next to the fault scarp and lack lithological analogue...
The Alhama de Murcia fault is a left-lateral strike-slip fault with a reverse component. Previous paleoseismic studies demonstrated its seismogenic nature but they did not obtained well constrained slip rate values, a good indicator of the seismic potential of a fault. In this paper we present new results from 3D trenching at the El Saltador site (...
The eastern Betic Cordillera, Spain, is the most seismically active area within the Iberian Peninsula. We present a Global Positioning System (GPS)-derived horizontal crustal deformation obtained from five occupations of the CuaTeNeo GPS network (1997, 2002, 2006, 2009 and 2011) that clearly shows continuing tectonic activity in the SE Betics. The...
We present an updated crustal deformation field in the Eastern Betics,
based on GPS observations of the CuaTeNeo network. This non-permanent
network was established in 1996 to quantify the current tectonic
deformation of the SE Betics. The network consists of 15 stable
monuments distributed between Murcia and Almeria, which were observed
five times...
The Pyrenees mountain belt, which separates the Iberian Peninsula from the rest of the European continent, is part of the Alpine–Himalayan orogenic belt, formed as a result of a collision between the African and Eurasian Plates. Although the instrumental seismicity in the Pyrenees is moderate, in the past centuries a number of destructive earthquak...
The coseismic superficial deformation at the region of Lorca (Murcia, southeastern Spain) due to the Mw 5.1 earthquake on 11 May 2011 was characterized by a multidisciplinary team, integrating information from DInSAR, GPS and numerical modelling techniques.
Despite the moderate magnitude of the event, quantitative information was obtained from the...
El 11 de Mayo del 2011 tuvo lugar una serie sísmica en la localidad murciana de Lorca. El terremoto principal de Mw5.2 se atribuye a la Falla de Alhama de Murcia, una de las más activas del SE de la Península Ibérica. Mediante el análisis de 15 años de datos de las campañas GPS de la red CuaTeNeo se ha caracterizado el campo inter-sísmico de veloci...
Resumen: En este trabajo se presenta el campo de deformación cortical en el Este de la Cordillera Bética, basado en observaciones de la red GPS CuaTeNeo. Esta red geodésica no permanente, se estableció en 1996 con el objetivo de cuantificar las deformaciones tectónicas actuales del SE de las Béticas. La red está formada por 15 monumentos estables d...
The coseismic superficial deformation at the region of Lorca (Murcia, southeastern Spain) due to the Mw 5.1 earthquake occurred on 11 May 2011 was studied by a multidisciplinary team, integrating information from DInSAR, GPS and numerical modeling techniques. Despite the moderate magnitude of the event, quantitative information was obtained from th...
