Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 25, issue 12
Articles | Volume 25, issue 12
https://doi.org/10.5194/nhess-25-5055-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-25-5055-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 12
Brief communication
 | 
22 Dec 2025
Brief communication |  | 22 Dec 2025

Brief communication: Threshold and probability. The conceptual difference between ID thresholds for landslide initiation and IDF curves

Francesco Marra, Eleonora Dallan, Marco Borga, Roberto Greco, and Thom Bogaard

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Latest update: 11 Nov 2026
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Short summary
We highlight an important conceptual difference between the duration used in intensity-duration thresholds and the duration used in the intensity-duration-frequency curves that has been overlooked by the landslide literature so far.
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