Geological and geomorphological characteristics of landslides triggered by the 2004 Mid Niigta prefecture earthquake in Japan

Chigira, Masahiro; Yagi, Hiroshi

doi:10.1016/j.enggeo.2005.10.006

Cited by 189 publications

(89 citation statements)

References 20 publications

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“…Lee and Evangelista (2006) acquired information on landslides induced by the 1990 Luzon earthquake using post-earthquake aerial photographs and ground observations to apply and verify landslide-susceptibility analysis techniques using an artificial neural network method and GIS with topographic maps, geology, land cover and terrain map data. In previous studies (Wang et al 2002;Chigira & Yagi 2006), we found that landslides occur shortly after earthquakes and cause changes to the land cover and the surface and subsurface morphologies. We found that the locations where landslides occurred show significant differences in texture, colour and brightness compared to other areas.…”

Section: Degree Of Building Damagementioning

confidence: 99%

“…Aerial remote sensing images have been widely used to map landslides and to delineate probable landslide-prone areas based on terrain, lithology and other data and at times have predicted landslides in certain areas. For example, Wang et al (2002) used visual interpretation to extract the sizes and distributions of landslides induced by the 1999 Chi-Chi earthquake, and Chigira and Yagi (2006) performed a similar analysis for the 2004 Mid Niigata prefecture earthquake. Dai et al (2011) used aerial photographs and remote sensing images taken after the Wenchuan earthquake to study the correlations between the occurrence of landslides and geologic and geomorphologic conditions and seismic parameters.…”

Section: Degree Of Building Damagementioning

confidence: 99%

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Integrated detection and analysis of earthquake disaster information using airborne data

Cao

Liu

Singh

et al. 2015

Geomatics, Natural Hazards and Risk

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The primary goal of this paper is to discuss an integrated approach to efficiently obtaining earthquake damage information. We developed a framework to rapidly obtain earthquake damage information using post-earthquake airborne optical images. The framework is a standard process that includes data selection, preprocessing, damage factor identification, damage factor evaluation and the development of an earthquake damage information map. We can obtain damage information on severely affected regions using this framework, which will aid in planning rescue and rehabilitation efforts following disasters. We used the integrated approach to obtain damage information using the Lushan earthquake (magnitude 7.0, 20 April 2013) as a case study. The result were as follows: (1) 644 collapsed buildings and 4599 damaged buildings accounted for 13.90% and 96.24%, respectively, of the total number of buildings in the study area; (2) 334 landslides (total area of 691,674.5 m 2 ) were detected and were found at greater probabilities at elevations of 1400À1500 m and higher slope; (3) no secondary disasters, such as barrier lakes, were detected; (4) 15 damaged sections (total of 306 m) were detected in the lifelines, and road sections that are at a high risk of damage (total of 2.4 km) were identified; and (5) key structures, including Yuxi River Dam and three bridges, were intact. Integrating the earthquake damage factor information generated a comprehensive Lushan earthquake damage information map. The integrated approach was proven to be effective using the Lushan earthquake as a case study and can be applied to assess earthquake damage to facilitate efficient rescue efforts.

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Section: Degree Of Building Damagementioning

confidence: 99%

Section: Degree Of Building Damagementioning

confidence: 99%

Integrated detection and analysis of earthquake disaster information using airborne data

Cao

Liu

Singh

et al. 2015

Geomatics, Natural Hazards and Risk

View full text Add to dashboard Cite

show abstract

“…The main types of landslides were slides and rock falls in quaternary deposit layers or strongly weathered rock masses, with a total of 83% ( figure 12(c)). For the 2004 Mid Niigta prefecture earthquake (Mw 6.8) in Japan, using remote sensing images and field investigations, Chigira and Yagi (2006) found that more than 1000 landslides were triggered in the Miocene to Quaternary sedimentary rocks. The most common landslides were shallow slides on steep slopes, but more than 100 deepseated landslides were triggered by this earthquake.…”

Section: Spatial Distribution Analysismentioning

confidence: 99%

“…The 2002 Avaj earthquake caused 233 fatalities and injured approximately 1500 (Mahdavifar et al 2006). Landslides triggered by these events provide direct empirical evidence for the spatial distribution of landslides (Chigira & Yagi 2006).…”

Section: Introductionmentioning

confidence: 99%

“…For example, landslides triggered by the 2004 Mid Niigta prefecture earthquake occurred within the Niigata Prefecture (central Japan), causing severe damage, isolating villages in the mountainous areas near the epicentre, and taking six lives (Chigira & Yagi 2006). The 2007 Niigata Chuetsu-Oki earthquake (Mw 6.6) caused 11 fatalities, nearly 2000 injuries and damaged approximately 1100 residences (Collins et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Landslides triggered by the 3 August 2014 Ludian earthquake in China: geological properties, geomorphologic characteristics and spatial distribution analysis

Zhou

Hao

2015

Geomatics, Natural Hazards and Risk

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On 3 August 2014, an earthquake of Mw 6.5 happened in Ludian County, Yunnan Province, China. This earthquake triggered hundreds of landslides of various types, dominated by shallow slides, deep-seated slides, rock falls, debris flow and unstable slopes. Using field investigations and remote sensing images, 413 landslides triggered by the Ludian earthquake were statistically analyzed. Statistical analyses show that most of the landslides are shallow slides with a small volume. Most of these landslides are concentrated near the epicentre with distances ranging from 6À12 km, especially at the upper slope along the river valley. The number of landslides increased with increasing distance from the epicentre (0À9 km) and then decreased with increasing distance from the epicentre (>9 km). The landslides decreased in density with increasing distance from the fault rupture. More than 70% of the landslides occurred on the right side of the XiyuheZhaotong fault, when viewed from Southwest (SW) to Northeast (NE). Slope aspect and gradient had a substantial influence on the landslide distribution and landslide density increased with increasing slope gradient. Approximately, 65% of the landslides happened at the back slope with respect to the earthquake epicentre.

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Residual shear strength variability as a primary control on movement of landslides reactivated by earthquake‐induced ground motion: Implications for coastal Oregon, U.S.

Schulz

Wang

2014

JGR Earth Surface

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Most large seismogenic landslides are reactivations of preexisting landslides with basal shear zones in the residual strength condition. Residual shear strength often varies during rapid displacement, but the response of residual shear zones to seismic loading is largely unknown. We used a ring shear apparatus to perform simulated seismic loading tests, constant displacement rate tests, and tests during which shear stress was gradually varied on specimens from two landslides to improve understanding of coseismic landslide reactivation and to identify shear strength models valid for slow gravitational failure through rapid coseismic failure. The landslides we studied represent many along the Oregon, U.S., coast. Seismic loading tests resulted in (1) catastrophic failure involving unbounded displacement when stresses represented those for the existing landslides and (2) limited to unbounded displacement when stresses represented those for hypothetical dormant landslides, suggesting that coseismic landslide reactivation may be significant during future great earthquakes occurring near the Oregon Coast. Constant displacement rate tests indicated that shear strength decreased exponentially during the first few decimeters of displacement but increased logarithmically with increasing displacement rate when sheared at 0.001 cm s À1 or greater. Dynamic shear resistance estimated from shear strength models correlated well with stresses observed during seismic loading tests, indicating that displacement rate and amount primarily controlled failure characteristics. We developed a stress-based approach to estimate coseismic landslide displacement that utilizes the variable shear strength model. The approach produced results that compared favorably to observations made during seismic loading tests, indicating its utility for application to landslides.

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Geological and geomorphological characteristics of landslides triggered by the 2004 Mid Niigta prefecture earthquake in Japan

Cited by 189 publications

References 20 publications

Integrated detection and analysis of earthquake disaster information using airborne data

Integrated detection and analysis of earthquake disaster information using airborne data

Landslides triggered by the 3 August 2014 Ludian earthquake in China: geological properties, geomorphologic characteristics and spatial distribution analysis

Residual shear strength variability as a primary control on movement of landslides reactivated by earthquake‐induced ground motion: Implications for coastal Oregon, U.S.

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