Abstract
From September 16 to September 20, 2010, a cold weather front went across Slovenia. A heavy 4-day rainfall totaling between 300 and 520 mm caused large floods and triggered numerous rainfall-induced landslides. The damage due to the floods and landslides is estimated over 250 million Euros. One of the largest landslides covering the area of approximately 15 ha was triggered on flysch bedrock, just below a limestone overthrust zone. The sliding material properties, the inclinations of the slope, and the water catchment area indicate that the landslide may transform into a fast moving debris flow. The necessary protective measures were taken to protect inhabitants and the infrastructure against the disaster. The Stogovce landslide is one of the numerous rainfall-induced landslides that have occurred in Slovenia on flysch bedrock in the last 10 years. It proves that landslide risk on flysch territory is increasing. Special program of monitoring and protective measures will have to be developed in near future to protect densely populated areas against landslides as a consequence of weather extremes.
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Acknowledgments
The field investigation described in the paper was conducted by a research group called together by the Commander of the Civil Defense of the Ajdovščina Municipality, Mr. Igor Benko. His help is gratefully appreciated.
The rainfall and discharge data were kindly made available by the Environmental Agency of the Republic of Slovenia. The research conducted was partially financially supported by the Slovenian Research Agency grant Nr. P2-0180 “Hydrotechnics, hydraulics, and geotechnics” and the PhD grant No. 1000-08-310068 (Maček M).
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Petkovšek, A., Fazarinc, R., Kočevar, M. et al. The Stogovce landslide in SW Slovenia triggered during the September 2010 extreme rainfall event. Landslides 8, 499–506 (2011). https://doi.org/10.1007/s10346-011-0270-z
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DOI: https://doi.org/10.1007/s10346-011-0270-z