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• W4322006722 abstract "Abstract Landslides commonly occur in areas with steep topography and abundant precipitation and pose a significant hazard to local communities. Some of the largest known landslides occur in Alaska, including several that caused local tsunamis. Many landslides may have gone undetected in remote areas due to lack of observations. Here, we develop a semiautomated workflow using both seismic and geodetic observations to detect, locate, validate, and characterize landslides in Alaska. Seismic observations have shown promise in continuously monitoring landslide occurrence, while remote sensing techniques are well suited for verification and high‐resolution imaging of landslides. We validate our procedure using the 28 June 2016, Lamplugh Glacier landslide. We also present observations of a previously unknown landslide occurred on 22 September 2017 in the Wrangell Mountains region. The Wrangell Mountains landslide generated a coherent surface wavefield recorded across Alaska and the contiguous United States. We used Sentinel‐1 Synthetic Aperture Radar and Sentinel‐2 optical imagery to map the respective mass deposit. To investigate the landslide dynamics, we inverted regional seismic surface wave data for a centroid single force failure model. Our model suggests that the Wrangell Mountains landslide lasted for about 140 s and had two subevents involving at least five distinct stages. We estimate that the landslide had displaced 3.1–13.4 million tons of rocks over a distance of ∼2 km. Our results suggest that combining seismic and geodetic observations can vastly improve the detection and characterization of landslides in remote areas in Alaska and elsewhere, providing new insights into the landslide dynamics." @default.
• W4322006722 created "2023-02-26" @default.
• W4322006722 creator A5019520928 @default.
• W4322006722 creator A5032374728 @default.
• W4322006722 creator A5083642903 @default.
• W4322006722 date "2023-03-01" @default.
• W4322006722 modified "2023-10-12" @default.
• W4322006722 title "A Joint Seismic and Space‐Based Investigation of the 2016 Lamplugh Glacier and 2017 Wrangell Mountains (Alaska) Landslides" @default.
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• W4322006722 doi "https://doi.org/10.1029/2022jf006903" @default.
• W4322006722 hasPublicationYear "2023" @default.
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• W4322006722 hasAuthorship W4322006722A5019520928 @default.
• W4322006722 hasAuthorship W4322006722A5032374728 @default.
• W4322006722 hasAuthorship W4322006722A5083642903 @default.
• W4322006722 hasConcept C100834320 @default.

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