Analysing post-earthquake landslide activity using multi-temporal landslide inventories near the epicentral area of the 2008 Wenchuan earthquake

Tang, Chenxiao; Westen, C.J. van; Tanyaş, Hakan; Jetten, Victor

doi:10.5194/nhess-16-2641-2016

Cited by 127 publications

(85 citation statements)

References 36 publications

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“…From 2004 to 2010 a total of 47,736 earthquake-induced landslide (EQIL) casualties were reported (Kennedy et al, 2015;Petley, 2012). In addition, EQIL commonly have considerable indirect and long-term effects on society and infrastructure that intensify their overall damage (e.g., Shafique et al, 2016) such as blocked roads that hamper medical care (Marui & Nadim, 2009), floods from the failure of landslide dams, increased debrisflow activity (e.g., Shieh et al, 2009;Tang et al, 2016), and downstream river aggradation and associated flooding (e.g., Korup, 2006). that landslide distance limits differ between plate boundary earthquakes, which made up most of Keefer's (1984) data set, and intraplate earthquakes, where seismic wave attenuation is generally much lower.…”

Section: Introductionmentioning

confidence: 99%

Presentation and Analysis of a Worldwide Database of Earthquake‐Induced Landslide Inventories

et al. 2017

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Earthquake‐induced landslide (EQIL) inventories are essential tools to extend our knowledge of the relationship between earthquakes and the landslides they can trigger. Regrettably, such inventories are difficult to generate and therefore scarce, and the available ones differ in terms of their quality and level of completeness. Moreover, access to existing EQIL inventories is currently difficult because there is no centralized database. To address these issues, we compiled EQIL inventories from around the globe based on an extensive literature study. The database contains information on 363 landslide‐triggering earthquakes and includes 66 digital landslide inventories. To make these data openly available, we created a repository to host the digital inventories that we have permission to redistribute through the U.S. Geological Survey ScienceBase platform. It can grow over time as more authors contribute their inventories. We analyze the distribution of EQIL events by time period and location, more specifically breaking down the distribution by continent, country, and mountain region. Additionally, we analyze frequency distributions of EQIL characteristics, such as the approximate area affected by landslides, total number of landslides, maximum distance from fault rupture zone, and distance from epicenter when the fault plane location is unknown. For the available digital EQIL inventories, we examine the underlying characteristics of landslide size, topographic slope, roughness, local relief, distance to streams, peak ground acceleration, peak ground velocity, and Modified Mercalli Intensity. Also, we present an evaluation system to help users assess the suitability of the available inventories for different types of EQIL studies and model development.

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Section: Introductionmentioning

confidence: 99%

Presentation and Analysis of a Worldwide Database of Earthquake‐Induced Landslide Inventories

et al. 2017

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“…The most obvious, frequently observed phenomenon is the significant decrease in surface vegetation coverage. Soil or rock exposures in earthquakeaffected areas will enable profound increases in postseismic landslide activity, and the impacts will last for a long time period (Marc et al, 2015;C. Tang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Variability in Land Surface Temperature Over the Mountainous Region Affected by the 2008 Wenchuan Earthquake From 2000 to 2017

Zhao

Yin

et al. 2019

JGR Atmospheres

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The mountainous region affected by the 2008 Wenchuan earthquake was frequently analyzed to assess its vegetation recovery. However, the dynamic of surface thermal environment was rarely investigated but directly influenced local geophysical and biophysical processes. Under this background, this research aimed to analyze the trend of surface temperature based on Moderate Resolution Imaging Spectroradiometer daily land surface temperature product from 2000 to 2017 and understand its change mechanism. An annual temperature cycle model was applied to obtain the daytime and nighttime annual cycle parameters (ACPs), including mean annual surface temperature (MAST), yearly amplitude of surface temperature, and phase shift. The trend analysis with the Mann‐Kendall test illustrated the strong inverse relationship between the two ACPs (MAST and yearly amplitude of surface temperature) and elevation, and the nighttime terms showed a stronger connection than those of the daytime. The areas with significant decreases in vegetation coverage induced by the earthquake exhibited an obvious upward trend in daytime MAST and annual maximum temperature, while the vegetation improved areas presented a cooling effect. Comparatively, the nighttime ACPs was little sensitive to vegetation change and the change magnitude was relatively small. For the high mountain area, with the shrinkage of snow cover duration, the global warming effect resulted in a warming trend by increasing the annual minimum temperature at both the daytime and nighttime. Overall, this study provided insights to the impact of the earthquake to mountain thermal environment and its different responses to changes in vegetation cover and climatic environment.

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“…The number of studies that compare earthquake-triggered landslides with rainfall-triggered ones for the same area is lower. They mostly focus on mapping rainfall-induced landslides after an earthquake, such as for the 1999 Chi-Chi earthquake (Lin et al, 2006(Lin et al, , 2008, the 2005 Kashmir earthquake (Saba et al, 2010) or the 2008 Wenchuan earthquake (Tang et al, 2010(Tang et al, , 2016Fan et al, 2018a). A few studies were car-ried out on multitemporal RTL inventories in Taiwan, Papua New Guinea, Japan and Central Nepal before an earthquake, which supplied a good comparison study for RTLs under the effect and without the effect of earthquakes (Marc et al, , 2019.…”

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How size and trigger matter: analyzing rainfall- and earthquake-triggered landslide inventories and their causal relation in the Koshi River basin, central Himalaya

Zhang

Westen

Tanyaş

et al. 2019

Nat. Hazards Earth Syst. Sci.

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Inventories of landslides caused by different triggering mechanisms, such as earthquakes, extreme rainfall events or anthropogenic activities, may show different characteristics in terms of distribution, contributing factors and frequency-area relationships. The aim of this research is to study such differences in landslide inventories and the effect they have on landslide susceptibility assessment. The study area is the watershed of the transboundary Koshi River in the central Himalaya, shared by China, Nepal and India. Detailed landslide inventories were generated based on visual interpretation of remote-sensing images and field investigation for different time periods and triggering mechanisms. Maps and images from the period 1992 to 2015 were used to map 5858 rainfall-triggered landslides, and after the 2015 Gorkha earthquake, an additional 14 127 coseismic landslides were mapped. A set of topographic, geological and land cover factors were employed to analyze their correlation with different types and sizes of landslides. The frequency-area distributions of rainfall-and earthquake-triggered landslides (ETLs) have a similar cutoff value and power-law exponent, although the ETLs might have a larger frequency of a smaller one. In addition, topographic factors varied considerably for the two triggering events, with both altitude and slope angle showing significantly different patterns for rainfall-triggered and earthquake-triggered landslides. Landslides were classified into two size groups, in combination with the main trigger-ing mechanism (rainfall-or earthquake-triggered). Susceptibility maps for different combinations of landslide size and triggering mechanism were generated using logistic regression analysis. The different triggers and sizes of landslide data were used to validate the models. The results showed that susceptible areas for small-and large-size rainfall-and earthquake-triggered landslides differed substantially.

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Analysing post-earthquake landslide activity using multi-temporal landslide inventories near the epicentral area of the 2008 Wenchuan earthquake

Cited by 127 publications

References 36 publications

Presentation and Analysis of a Worldwide Database of Earthquake‐Induced Landslide Inventories

Presentation and Analysis of a Worldwide Database of Earthquake‐Induced Landslide Inventories

Spatiotemporal Variability in Land Surface Temperature Over the Mountainous Region Affected by the 2008 Wenchuan Earthquake From 2000 to 2017

How size and trigger matter: analyzing rainfall- and earthquake-triggered landslide inventories and their causal relation in the Koshi River basin, central Himalaya

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