Theme: Landslide

The 3 December 2013 Montescaglioso landslide

Montescaglioso_auto- On December 3, 2013, a large landslide activated on the SW slope of Montescaglioso (Matera province, Basilicata), affecting an area with evidence of past instability. The landslide involved some 500 m of the main road to the village, and also interested several houses and other ...

SANF Liguria

SANFLiguria_Figure2_20150112 In Italy, landslides are triggered by intense and/or prolonged rainfall. The spatial and temporal forecast of multiple landslides triggered by rainfall in wide areas relies primarily on empirical rainfall thresholds. It is widely believed that the thresholds are influenced by the local topographic (morphological), lithological, soil, and climatic settings. For this reason, it is necessary to define local rainfall thresholds. Reliable local ...

Landslide maps for the Castelfranci municipality

Castelfranci_chianiello- Castelfranci (Avellino, Campania) is located in the catchment of the Calore River, in correspondence of a N-S oriented stretch of the river. This territory is intensely affected by landslide development, which more than once was in the past at the origin of severe damage to the local community, and heavy losses to ...

SAR change detection methodologies for event landslide mapping

TerraSAR-X image The project explores and implements multi-scale and multi-sensor SAR change detection methodologies for event landslide mapping. Automated analysis for change detection is a challenging task due 
to the inherent noisiness of SAR imagery and also to the high sensitivity to texture variability due to different acquisition angles. Moreover, pre-processing (de-speckling) may lead to the degradation
 of the geometrical details and affect the ...

Alarm and monitoring systems for debris and mud flows

The coross-section of the Marderello torrent where the stage sensor is installed, visible above the bridge. Monitoring of debris flows in instrumented areas is carried out since many years in different Countries worldwide. It is still missing, however, an adequate standardization of methodologies, instrumentations and procedures. The instrumented areas are also employed for testing warning systems. Even though these latter have been more and more employed, a systematic experimentation of these systems has not yet been carried ...

Geo-hydrological hazards in the Pogliaschina catchment

Pogliaschina_pioggia cumulata_evento-20141120- The occurrence of flash floods in mountainous catchments is often associated to relevant geomorphic effects, both in the channel network (channel changes and transport of large wood), and on the hillslopes (landslides and soil erosion). The concomitance of flash floods, channel changes and landslides enhances hazards and risk associated to individual ...

Study and monitoring of the Rotolon landslide

rotolon-evidence1 At the beginning of  November 2010 exceptional rainfall events stroke the Veneto Region causing the re-activation of the Rotolon landslide which is a serious threat to the town of  Recoaro Terme, Vicenza, ...

Zonazione della suscettibilità da frana si scorrimento in Umbria

RU-suscettibilità-zonazione1- Realizzazione di modelli e carte di suscettibilità da frana tipo scorrimento per il territorio della Regione ...

Time-Space prediction of high impact landslides under changing precipitation regimes

In Italy a significant increase of landslide frequency and intensity in the last decades has been occurred, whose impact must be evaluated with respect to the convergence in possible negative effects of both rainfall regime changes and of urban development as well as land use changes. Italy, due to its geomorphological and urbanization characters, represents today large areas where landslide risk is at the highest ...

Rainfall, seismicity, landslides and sediment discharge in mountain belts

Bilaterale-IT-TW-Mondini Taiwan, an active orogenic belt with subtropical climate is characterized by a high uplift rate and several major typhoons each year. Italy is on one of the most seismically active regions in Europe because of the thrust of African plate on Eurasian continental one. Both experience numerous landslides along with earthquakes and intense rainfalls, causing heavy damages and casualties. The purpose of this project was to share scientific knowledge ...

Management of sediment transport in small mountain catchments

Nuovo-Sito-Web-IRPI-GESTO_sediment_trap-02122014 Sediment transport in small mountain catchments (drainage area < 10-20 km2) is a fundamental process for the equilibrium and the dynamics of the whole channel network. At the same time, sediment transport can create high-risk conditions due to the occurrence of extreme phenomena such as debris flow, hyperconcentrated flow, and flood with intense bedload, usually triggered by intense and short duration rainfall. In order to properly manage ...

Geomorphological studies on sectors of the Apulian territory

TRE_lucera2 Existing geomorphological maps on the Apulian territory show some inconsistencies, that might have effects as concerns the limits of restriction areas for the location of works. To have available an updated and scientifically sound product, TRE Spa asked CNR IRPI a scientific consultancy for the production of geomorphological ...

Extraterrestrial landslides

ExtraterrestrialLandslides_Figura1_20150108 Landslides play an important role in the evolution of landscapes on Earth and on other solid planets of the Solar System. Surface gravity is the main factor driving landslides in solid planets. On Earth, landslides have been recognized in all continents, and in subaerial and submarine environments. The spatial and temporal range of the observed slope failures is extremely large on Earth. We are conducting a systematic mapping of landslides in ...

Decision matrices for the assessment of fluvial processes in mountain streams

Matrici_decisionali_Cengles-03122014-evidenza Decision matrices may contribute to mountain watershed management by defining coherent event scenarios that take into account the type of flow processes (e.g., water floods with bedload, debris flows), their geomorphic effects, and the interactions with hydraulic control ...

Investigations of the Ianò and Maierato landslides, Calabria, southern Italy

3862_Maierato_immagine_01-evidenza- In the winter of 2009-2010, after the previous winter 2008-2009 when widespread hydrogeological instabilities had affected the whole of Calabria, the same area was still hardly hit by numerous and heavier instability phenomena, punctual and areal. In the context outlined it was ordered by the Italian Government to draft a "Plan excerpt for urgent action" which covered, in particular, the main city of the region, Catanzaro (Ianò district), and ...

Micro-seismic network at the Carrel Hut on the Matterhorn

OLYMPUS DIGITAL CAMERA The permafrost degradation is a probable cause of the increase of rock instabilities and rock falls observed in recent years in high mountain areas. It causes the thaw of the ice filling rock discontinuities producing water that subsequently freezes again, inducing stresses that lead to rock falls. Rock-falls are among the most hazardous instability processes in high mountain environments because of their velocity and the difficulty to ...

Monitoring system in the framewok of the Interreg IV Project “Monitor II”

Gadria_sistema_monitoraggio_radar1-02122014-evidenza Debris-flow monitoring in instrumented areas is an invaluable way to gather field data that may improve the understanding of these hazardous phenomena, as well as for the development of warning systems. The number of monitoring sites and the amount of recorded data on debris flows, however, still remain limited if compared to landslides and fluvial sediment transport. This motivated the Autonomous Province of Bozen-Bolzano to implement a new ...

Innovative System for Monitoring and assessment of hIgh risk LANDslides

smiland_fig_intestazione-evidenza One of the main challenges in the field of engineering geology is the comprehension of the triggering mechanisms of landslides and the forecast of possible evolutionary scenarios in order to assess the correct mitigation measures. Landslides can be initiated by a variety of triggers: from earthquakes to meteorological events, including intense or prolonged rainfall, rapid snow melting, and variations of the surface temperature conditions. ...

Hazard posed by slope instability phenomena in Calabria

The territory of Calabria is affected by numerous landslides and, more generally, has a strong propensity to develop hydrogeological instability. A measure of this condition is provided by the data of the current PAI, limited to the examined areas (villages and households with more than 200 inhabitants), that identifies over 1700 high-risk situations and more than 700 at very high risk: a total of over 2,400 situations in which a hazard to the ...

Triggering and evolution of the San Benedetto Ullano landslide

San-Benedetto-Ullano-damage-to-Provincial-Road-24112014- With reference to landslides, Italy is exposed to high-risk conditions (Guzzetti, 2000). The abundant and prolonged rains fallen in the 2008-2009 and 2009-2010 wet seasons triggered numerous landslides in Calabria, mostly in its northernmost sector. Such geo-hydrological crises were severe enough to induce the Italian government to declare the State of Emergency on both ...

Landslide hazard in coastal areas: the natural laboratory of the Malta island

malta-evidence The research project can be included within the context of increasing hydrogeological instability also due to climate change and aims at investigating coastal instability in the island of Malta. This aspect has been until now slightly dealt with, despite significant risk issues, as evidenced from a series of accidents/damages recorded after landslide ...

Prediction of rainfall-induced landslides and associated risk in Italy

SogliePluviometriche_Figura1_20150109- In Italy, slope failures occur every year, claiming lives, causing economic disruption, and producing different environmental problems. In Italy, intense or prolonged rainfall is the primary trigger of landslides. Predicting rainfall-induced slope failures is a challenging task of both scientific and societal interest. The forecast of single or multiple landslides triggered by rainfall in wide areas relies primarily on empirical rainfall ...

Landslide risk and urban planning in small settlements in Daunia

Stampa The Strategic Project PS_119 was aimed at developing a methodology for the landslide risk assessment, applicable at the regional scale and based on the most advanced knowledge in the fields of geology, geotechnics, structural engineering and urban planning. This assessment was based on a deterministic approach of the landslide processes and the risks related to them. The failure slope mechanisms, the structural damages due to landsliding and ...

Monitoring of the Castellana Caves

Castellana2_imbocco-evidenza Evolution of cave and karst system occurs also by means of successive detachments of blocks from both the vault and the walls of the underground spaces. In show caves, this poses problems for the safety of visitors, and the issue must be carefully ...

Preliminary recognition of debris-flow hazard areas in Trentino

Trento_pericolosità-1-201114- The assessment debris-flow hazard is of utmost importance in the management of alpine catchments. The analysis of morphometric variables of drainage basins and channels can contribute to preliminary assessment of debris-flow hazard at regional ...

Landslide Early Warning Integrated System

lewis_warning_map_evidenza The focus on landslides results from the recognition that in many European countries slope instabilities affect urbanized areas and are a major threat to populations. Through the integration of remotely sensed data with ground data we identify significant surface changes which are taking place on landslide susceptible slopes and this is used as input to the assessment of ...

High pressure rheology

HighPressureRheology-SEMimage-glassBeads-evidenza Some geological phenomena of high pressure shearing show an unusual low friction during rock on rock slipping, like the abnormally long rock avalanches runout (hypermobility) or the slip of faults during earthquakes. The project aims to study the effect of the dynamic fragmentation of rock granules on the motion shear resistance, starting from the consideration that dynamic fragmentation is ubiquitous in geological processes subject to shearing ...

Preliminary analysis of the stability conditions in some sectors of the Castellana Caves

Castellana1_grave-evidenza Evolution of cave and karst system occurs also by means of successive detachments of blocks from both the vault and the walls of the underground spaces. In show caves, this poses problems for the safety of visitors, and the issue must be carefully ...

Responding to the risks from climate change

RESPONSE-selsey-evidenza ‘Response’ (or ‘Responding to the risks from climate change’) is a three-year Project supported by the LIFE financial instrument of the European Community, completed in December 2006. The Project provides a framework for understanding and preparing for the impacts of climate change around the European ...