A new study published in Science Advances shows that the catastrophic 2023 flood in Derna, Libya, was not just caused by extreme rainfall but was severely worsened by the collapse of two poorly designed dams. The research, led by scientists from the Hebrew University of Jerusalem, the University of Colorado Boulder, and the University of Haifa, highlights how infrastructure failures turned a natural event into a preventable disaster, claiming thousands of lives.
The study analyzed Storm Daniel, a rare but not unprecedented Mediterranean cyclone that brought heavy rainfall to the region. Using hydrological models and satellite data, researchers found that while the storm was intense, the dams’ collapse multiplied the flood’s destructiveness by nearly twenty times. The dams, originally built for flood protection, created a false sense of security, leading to development in high-risk areas. When they failed, the resulting surge devastated entire neighborhoods.
Dr. Moshe Armon, one of the lead authors, explained, “This disaster was a failure of risk management. Proper design, maintenance, and communication could have significantly reduced the tragedy.” The team’s hydraulic simulations confirmed that without the dams, the flood’s impact on Derna would have been far less severe.
The study underscores the urgent need for better flood mitigation strategies, especially in dryland regions vulnerable to extreme weather. The researchers advocate for nature-based solutions and robust early warning systems, warning against over-reliance on infrastructure without proper risk assessment. This tragedy serves as a critical lesson in the importance of proactive disaster preparedness and transparent public communication.
Add comment