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

Abstract

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

“…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].…”

“…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).…”

The control of earthquake sequences on hillslope stability

“…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].…”

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

“…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).…”