Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 6
Articles | Volume 26, issue 6
https://doi.org/10.5194/nhess-26-2561-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-2561-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 6
Research article
 | 
03 Jun 2026
Research article |  | 03 Jun 2026

Capturing the complete landslide–debris-rich flood continuum for accurate inventory, susceptibility and exposure mapping – lessons from Cyclone Idai

Antoine Dille, Olivier Dewitte, Jente Broeckx, Koen Verbist, Andile Sindiso Dube, Jean Poesen, and Matthias Vanmaercke

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Latest update: 03 Jun 2026
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Short summary
In mountain regions, intense rainfall can trigger thousands of landslides within hours. Yet, while most efforts focus on where landslides start, the worst impacts often occur far downstream because slope material can mix with large runoffs. Studying Cyclone Idai’s impacts in eastern Zimbabwe, we found that landslide sources explain only one-fifth of total population exposure, highlighting the need to consider the full landslide–flood continuum to better protect people and plan safer landscapes.
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