Mass wasting triggered by the 2008 Wenchuan earthquake is greater than orogenic growth

Parker, Robert N.; Densmore, Alexander L.; Rosser, Nick; Michele, Marcello de; Li, Yong; Huang, Runqiu; Whadcoat, Siobhan; Petley, David

doi:10.1038/ngeo1154

Cited by 463 publications

(352 citation statements)

References 29 publications

Supporting

Mentioning

346

Contrasting

Unclassified

Order By: Relevance

“…Landslide maps can document the extent of landslide phenomena from a small or large watershed to a regional scale, and show information that can be exploited to determine landslide susceptibility, hazard, vulnerability and risk, as well as study the evolution of landscapes dominated by mass-wasting processes [2,80,81]. Mapping landslides using the traditional geomorphological field approach is part of the standard knowledge process on which all the application products are based [82].…”

Section: Discussionmentioning

confidence: 99%

“…This event caused a considerable lack in water supplies for many of the city inhabitants. In this context, an integrated monitoring network was implemented in order to assess the residual risk by analyzing the landslide's geomorphological and kinematic features, and to support the early warning procedures needed to ensure the safety of the personnel involved both in the realization of the aqueduct by-pass and the long-term landslide stabilization works [80,81]. The landslide, characterized by a roto-translational movement, involved a few meters in thickness of detrital slope deposits and developed for about 110 m in length and 65 m in width (Figure 16a).…”

Section: Remote Landslide 3d Mapping For Emergency Management (Case Smentioning

confidence: 99%

See 1 more Smart Citation

Landslide Mapping and Characterization through Infrared Thermography (IRT): Suggestions for a Methodological Approach from Some Case Studies

et al. 2017

View full text Add to dashboard Cite

Abstract:In this paper, the potential of Infrared Thermography (IRT) as a novel operational tool for landslide surveying, mapping and characterization was tested and demonstrated in different case studies, by analyzing various types of instability processes (rock slide/fall, roto-translational slide-flow). In particular, IRT was applied, both from terrestrial and airborne platforms, in an integrated methodology with other geomatcs methods, such as terrestrial laser scanning (TLS) and global positioning systems (GPS), for the detection and mapping of landslides' potentially hazardous structural and morphological features (structural discontinuities and open fractures, scarps, seepage and moisture zones, landslide drainage network and ponds). Depending on the study areas' hazard context, the collected remotely sensed data were validated through field inspections, with the purpose of studying and verifying the causes of mass movements. The challenge of this work is to go beyond the current state of the art of IRT in landslide studies, with the aim of improving and extending the investigative capacity of the analyzed technique, in the framework of a growing demand for effective Civil Protection procedures in landslide geo-hydrological disaster managing activities. The proposed methodology proved to be an effective tool for landslide analysis, especially in the field of emergency management, when it is often necessary to gather all the required information in dangerous environments as fast as possible, to be used for the planning of mitigation measures and the evaluation of hazardous scenarios. Advantages and limitations of the proposed method in the field of the explored applications were evaluated, as well as general operative recommendations and future perspectives.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Remote Landslide 3d Mapping For Emergency Management (Case Smentioning

confidence: 99%

Landslide Mapping and Characterization through Infrared Thermography (IRT): Suggestions for a Methodological Approach from Some Case Studies

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In addition to causing extensive socioeconomic disruption [Marano et al, 2010], earthquake-induced landslides play a key role in the evolution of mountain landscapes, increasing sediment flux through the fluvial network [Dadson et al, 2004;Hovius et al, 2011] and contributing to net erosion rates [Marc et al, 2015;Parker et al, 2011;Robinson et al, 2016]. While earthquake ground shaking triggers near-instantaneous landsliding [Li et al, 2014], some slopes do not fully fail and are weakened [Khattak et al, 2010], resulting in elevated susceptibility of hillslopes to landsliding during postseismic rainfall [Lin et al, 2008] and subsequent seismicity [Parker et al, 2015].…”

Section: Introductionmentioning

confidence: 99%

The control of earthquake sequences on hillslope stability

Brain

Rosser

Tunstall

2017

Geophysical Research Letters

View full text Add to dashboard Cite

Earthquakes trigger landslides in mountainous regions. Recent research suggests that the stability of hillslopes during and after a large earthquake is influenced by legacy effects of previous seismic activity. However, the shear strength and strain response of ductile hillslope materials to sequences of earthquake ground shaking of varying character is poorly constrained, inhibiting our ability to fully explain the nature of earthquake‐triggered landslides. We used geotechnical laboratory testing to simulate earthquake loading of hillslopes and to assess how different sequences of ground shaking influence hillslope stability prior to, during, and following an earthquake mainshock. Ground‐shaking events prior to a mainshock that do not result in high landslide strain accumulation can increase bulk density and interparticle friction. This strengthens a hillslope, reducing landslide displacement during subsequent seismicity. By implication, landscapes in different tectonic settings will likely demonstrate different short‐ and long‐term responses to single earthquakes due to differences in the magnitude, frequency, and sequencing of earthquakes.

show abstract

“…A nivel planetario, los grandes terremotos han detonado una variedad de procesos de remoción en masa (PRM) y de erosión que han afectado la estabilidad de taludes, los que han sido documentados en numerosos estudios (Keefer, 1984;Denier et al, 1991;Rauch, 1997;Vargas, 2002;Keefer, 2002;Meunier et al, 2007, Laffaille et al, 2010, Ouimet, 2011, Parker et al, 2011, Schulz et al, 2012. Estos han causado cientos de miles de muertos, billones de dólares de pérdidas económicas y han denudado miles de km 2 de suelo (Keefer, 1984).…”

unclassified

Procesos de remoción en masa inducidos por el terremoto del 27F de 2010 en la franja costera de la Región del Biobío, Chile

Flores¹,

Hernández²

2012

Rev. geogr. Norte Gd.

View full text Add to dashboard Cite

Procesos de remoción en masa inducidos por el terremoto del 27F de 2010 en la franja costera de la Región del Biobío, Chile 1María Mardones Flores 2 y Jorge Rojas Hernández 3 RESUMENSe estudian procesos de remoción en masa (PRM) detonados por el megaterremoto 8.8Mw del 27F 2010, en el litoral de Concepción, Región del Biobío, Chile. Se analiza la morfometría y se explican los factores de peligrosidad de 22 eventos. Los tipos de PRM identifi cados fueron: desprendimiento de roca y suelo, deslizamiento de roca, deslizamiento de suelo, extensión lateral de suelos y remoción en masa mixto. Se revela el fuerte peso de los factores locales como condicionantes de los PRM: pendientes topográfi cas, manejo de taludes, grado de saturación del suelo, características litológicas y tectónicas. Se concluye que la densidad de los PRM se incrementa hacia el epicentro, pero el número y tamaño de estos no es comparable con la magnitud del sismo; este aspecto estaría relacionado con las características del relieve y con la baja humedad del suelo, dado que el sismo ocurrió en verano (estación seca del clima mediterráneo).Palabras clave: Estabilidad de laderas, caída de rocas, deslizamiento, deslizamiento cosísmico, proceso de remoción en masa ABSTRACTMass removal process (MRP) are studied, triggered by the 8.8Mw mega-earthquake of 27F 2010, at the coast of Concepción, in Biobío Region, Chile. 22 events are morphometrically evaluated on the fi eld and theirs hazard factors are explained. The types of MRP identifi ed were: rock and soil detachment, rockslide, landslide, lateral spreading and mix mass removal processes. Local factors as determinants of the MRP seem to be strongly infl uenced by topographic slopes, slope management, soil moisture, lithological and tectonic. It is concluded that the density of MRP increases with the proximity to the epicenter, but the number and size of MRP are not comparable with the magnitude of the earthquake; this aspect would be related to the relief features and the low soil moisture, since the earthquake occurred in summer (dry season of the Mediterranean climate). R E V I S T A D E G E O G R A F Í A N O R T E G R A N D E 58A nivel planetario, los grandes terremotos han detonado una variedad de procesos de remoción en masa (PRM) y de erosión que han afectado la estabilidad de taludes, los que han sido documentados en numerosos

show abstract

Mass wasting triggered by the 2008 Wenchuan earthquake is greater than orogenic growth

Cited by 463 publications

References 29 publications

Landslide Mapping and Characterization through Infrared Thermography (IRT): Suggestions for a Methodological Approach from Some Case Studies

Landslide Mapping and Characterization through Infrared Thermography (IRT): Suggestions for a Methodological Approach from Some Case Studies

The control of earthquake sequences on hillslope stability

Procesos de remoción en masa inducidos por el terremoto del 27F de 2010 en la franja costera de la Región del Biobío, Chile

Contact Info

Product

Resources

About