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-25-4815-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/nhess-25-4815-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 12
Research article
 | 
04 Dec 2025
Research article |  | 04 Dec 2025

Quantifying cascading impacts through road network analysis in an insular volcanic setting: the 2021 Tajogaite eruption of La Palma Island (Spain)

Lucia Dominguez, Sébastien Biass, Corine Frischknecht, Alana Weir, María-Paz Reyes-Hardy, Luigia Sara Di Maio, Nemesio Pérez, and Costanza Bonadonna

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Short summary
This study assess the cascading impacts of the 2021 Tajogaite eruption on La Palma, Spain. By combining forensic techniques with network analysis, this research quantifies the effects of physical damage on the road network as well as the cascading loss of functionality and systemic disruptions to emergency services, health centers, agriculture and education. Result show the relevance of redundant infrastructure and landuse on effective risk management and mitigation of future volcanic impacts.
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