Landslide dam activity in Flysch Zone of the Eastern Carpathian, Romania: distribution, stability, and failure mechanism assessment

Abstract Landslide dams are natural obstructions of river channels caused by slope failures. In Romania, the Eastern Carpathians, particularly the Flysch Zone, are the most susceptible to landslide dam formation compared to other mountainous regions in the country, due to a combination of specific lithological characteristics, rainfall conditions, and anthropogenic factors. In some cases, stable landslide dams create impoundments that can persist for decades or even centuries. This study investi