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Journal Article

Human Settlement Pressure Drives Slow‐Moving Landslide Exposure

Authors
/persons/resource/joaquinvicente.ferrer

Ferrer,  Joaquin Vicente
Potsdam Institute for Climate Impact Research;

Samprogna Mohor,  Guilherme
External Organizations;

Dewitte,  Olivier
External Organizations;

Pánek,  Tomáš
External Organizations;

Reyes‐Carmona,  Cristina
External Organizations;

Handwerger,  Alexander L.
External Organizations;

Hürlimann,  Marcel
External Organizations;

Köhler,  Lisa
External Organizations;

Teshebaeva,  Kanayim
External Organizations;

Thieken,  Annegret H.
External Organizations;

Tsou,  Ching‐Ying
External Organizations;

Urgilez Vinueza,  Alexandra
External Organizations;

Demurtas,  Valentino
External Organizations;

Zhang,  Yi
External Organizations;

Zhao,  Chaoying
External Organizations;

/persons/resource/Marwan

Marwan,  Norbert
Potsdam Institute for Climate Impact Research;

/persons/resource/Juergen.Kurths

Kurths,  Jürgen
Potsdam Institute for Climate Impact Research;

Korup,  Oliver
External Organizations;

External Ressource

https://zenodo.org/records/12549429
(Supplementary material)

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Supplementary Material (public)
Citation

Ferrer, J. V., Samprogna Mohor, G., Dewitte, O., Pánek, T., Reyes‐Carmona, C., Handwerger, A. L., Hürlimann, M., Köhler, L., Teshebaeva, K., Thieken, A. H., Tsou, C., Urgilez Vinueza, A., Demurtas, V., Zhang, Y., Zhao, C., Marwan, N., Kurths, J., Korup, O. (2024): Human Settlement Pressure Drives Slow‐Moving Landslide Exposure. - Earth's Future, 12, 9, e2024EF004830.
https://doi.org/10.1029/2024EF004830


Cite as: https://publications.pik-potsdam.de/pubman/item/item_30720
Abstract
A rapidly growing population across mountain regions is pressuring expansion onto steeper slopes, leading to increased exposure of people and their assets to slow-moving landslides. These moving hillslopes can inflict damage to buildings and infrastructure, accelerate with urban alterations, and catastrophically fail with climatic and weather extremes. Yet, systematic estimates of slow-moving landslide exposure and their drivers have been elusive. Here, we present a new global database of 7,764 large (A ≥ 0.1 km2) slow-moving landslides across nine IPCC regions. Using high-resolution human settlement footprint data, we identify 563 inhabited landslides. We estimate that 9% of reported slow-moving landslides are inhabited, in a given basin, and have 12% of their areas occupied by human settlements, on average. We find the density of settlements on unstable slopes decreases in basins more affected by slow-moving landslides, but varies across regions with greater flood exposure. Across most regions, urbanization can be a relevant driver of slow-moving landslide exposure, while steepness and flood exposure have regionally varying influences. In East Asia, slow-moving landslide exposure increases with urbanization, gentler slopes, and less flood exposure. Our findings quantify how disparate knowledge creates uncertainty that undermines an assessment of the drivers of slow-moving landslide exposure in mountain regions, facing a future of rising risk, such as Central Asia, Northeast Africa, and the Tibetan Plateau.