Earthquake-Induced Reactivation of Landslides: Recent Advances and Future Perspectives

Martino, Salvatore

doi:10.1007/978-3-319-21753-6_10

Cited by 9 publications

(7 citation statements)

References 56 publications

(52 reference statements)

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“…In addition to the safety factor, commonly used for rating landslide masses which are prone to failure [40] as well as to the co-seismic displacement computed according to conventional approaches [41], the probability of exceedance used by PARSIFAL allows a thematic mapping which is more suitable in the framework of seismic microzonation studies. Since the earthquake scenarios are linked to the local seismic hazard, the computed probability of exceedance multiplied for the seismic hazard can provide a combined and unconditional probability of slope failure occurrence.…”

Section: Discussionmentioning

confidence: 99%

Probabilistic Approach to Provide Scenarios of Earthquake-Induced Slope Failures (PARSIFAL) Applied to the Alcoy Basin (South Spain)

et al. 2018

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Abstract:The PARSIFAL (Probabilistic Approach to pRovide Scenarios of earthquake-Induced slope FAiLures) approach was applied in the basin of Alcoy (Alicante, South Spain), to provide a comprehensive scenario of earthquake-induced landslides. The basin of Alcoy is well known for several historical landslides, mainly represented by earth-slides, that involve urban settlement as well as infrastructures (i.e., roads, bridges). The PARSIFAL overcomes several limits existing in other approaches, allowing the concomitant analyses of: (i) first-time landslides (due to both rock-slope failures and shallow earth-slides) and reactivations of existing landslides; (ii) slope stability analyses of different failure mechanisms; (iii) comprehensive mapping of earthquake-induced landslide scenarios in terms of exceedance probability of critical threshold values of co-seismic displacements. Geotechnical data were used to constrain the slope stability analysis, while specific field surveys were carried out to measure jointing and strength conditions of rock masses and to inventory already existing landslides. GIS-based susceptibility analyses were performed to assess the proneness to shallow earth-slides as well as to verify kinematic compatibility to planar or wedge rock-slides and to topples. The experienced application of PARSIFAL to the Alcoy basin: (i) confirms the suitability of the approach at a municipality scale, (ii) outputs the main role of saturation in conditioning slope instabilities in this case study, (iii) demonstrates the reliability of the obtained results respect to the historical data.

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Section: Discussionmentioning

confidence: 99%

Probabilistic Approach to Provide Scenarios of Earthquake-Induced Slope Failures (PARSIFAL) Applied to the Alcoy Basin (South Spain)

et al. 2018

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“…The dynamics of landslides using ANb techniques are monitored in terms of relative time-lapse changes in surface wave velocities (dV/V) obtained from ANI and changes in the natural period from time-lapse HVSR curve. These changes (dV/V and natural period) are produced because of rainfall-induced changes in the landslide mass such as rheology/rigidity [5,6], natural period [22] and pore-pressure induced stresses [23]. An anomalous change in the shear wave velocity (related to landslide seasonal dynamics and detected by ANI) is reported before the occurrence of a landslide [5], and their correlation with changes in the rheology of material is verified under controlled laboratory scaled experiment [24].…”

Section: Background About the Seismic Techniques Used For The Landslimentioning

confidence: 73%

“…It is the base for the application of HVSR for the analysis of seasonal dynamics of the rainfall-triggered landslide [39,40]. Other environmental studies where HVSR has been applied includes changes in ice thickness estimation [22,38,41] and its dynamics [42], estimation of soil compaction [43] and for the monitoring of fluvial systems [44]. For landslide-affected areas, HVSR can show the directional effect as demonstrated in several studies [39,[45][46][47][48][49][50].…”

Section: Background About the Seismic Techniques Used For The Landslimentioning

confidence: 99%

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Multiple Geophysical Techniques for Investigation and Monitoring of Sobradinho Landslide, Brazil

et al. 2019

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Geophysical methods have a varying degree of potential for detailed characterization of landslides and their dynamics. In this study, the application of four well-established seismic-based geophysical techniques, namely Ambient Noise Interferometry (ANI), Horizontal to Vertical Spectral Ratio (HVSR), Multi-Channel Analysis of Surface Waves (MASW) and Nanoseismic Monitoring (NM), were considered to examine their suitability for landslide characterization and monitoring the effect of seasonal variation on slope mass. Furthermore, other methods such as Ground Penetrating Radar (GPR) and DC Resistivity through Electrical Resistivity Tomography (ERT) were also used for comparison purpose. The advantages and limitations of these multiple techniques were exemplified by a case study conducted on Sobradinho landslide in Brazil. The study revealed that the geophysical characterization of the landslide using traditional techniques (i.e., GPR, ERT and MASW) were successful in (i) the differentiation between landslide debris and other Quaternary deposits, and (ii) the delineation of the landslide sliding surface. However, the innovative seismic based techniques, particularly ambient noise based (HVSR and ANI) and emitted seismic based (NM), were not very effective for the dynamic monitoring of landslide, which might be attributed to the short-time duration of the data acquisition campaigns. The HVSR was also unsuccessful in landslide site characterization i.e., identification of geometry and sliding surface. In particular, there was no clear evidence of the light seasonal variations, which could have been potentially detected from the physical parameters during the (short-time) ambient noise and microseismic acquisition campaigns. Nevertheless, the experienced integration of these geophysical techniques may provide a promising tool for future applications.

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“…Such interactions are controlled by several features among which the slope geometry, the landslide mass properties and the physical characteristics of the seismic waves (Lenti and Martino, 2013). Stress-strain numerical modeling performed under dynamic conditions helps a better understanding of the aforementioned interactions; these models rely on very strong constraints to reproduce the engineering-geological setting of the slope and to restitute reliable outputs in terms of amplification functions or induced displacements (Martino, 2015).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Comprehensive analysis of the local seismic response in the complex Büyükçekmece landslide area (Turkey) by engineering-geological and numerical modelling

Bourdeau

Lenti

Martino

et al. 2017

Engineering Geology

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Multi-risk management requires a strong comprehension of possible effects induced by natural hazardous events. In this regard, landslides triggering due to earthquakes results from complex interactions between seismic waves and slopes. Multidisciplinary approaches can significantly contribute to better understand such interactions. The large Büyükçekmece landslide (about 1500 m wide and 1830 m long) located in Turkey (Avcilar peninsula), about 15 km northward from the North Anatolian Fault Zone (NAFZ), was selected as case-study in the framework of the European project "MARSite-Marmara Supersite: new directions in seismic hazard assessment through focused Earth observation in the Marmara Supersite". The Avcilar area was recently affected by the 17 th August 1999 Mw 7.4 Kocaeli and by the 12 th November Mw 7.2 Düzce earthquakes. The Büyükçekmece landslide involves upper Oligocene to lower Miocene deposits, consisting of silty clays, tuffs and sands. No

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Earthquake-Induced Reactivation of Landslides: Recent Advances and Future Perspectives

Cited by 9 publications

References 56 publications

Probabilistic Approach to Provide Scenarios of Earthquake-Induced Slope Failures (PARSIFAL) Applied to the Alcoy Basin (South Spain)

Probabilistic Approach to Provide Scenarios of Earthquake-Induced Slope Failures (PARSIFAL) Applied to the Alcoy Basin (South Spain)

Multiple Geophysical Techniques for Investigation and Monitoring of Sobradinho Landslide, Brazil

Comprehensive analysis of the local seismic response in the complex Büyükçekmece landslide area (Turkey) by engineering-geological and numerical modelling

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