Hydrological Disasters

About Hydrological Disasters

Hydrological disasters are water-related events including floods, landslides, and storm surges. These disasters result from excessive rainfall, rapid snowmelt, dam failures, or storm systems, causing widespread damage to communities and infrastructure in vulnerable regions.

Key Facts

• •Floods are the most common natural disaster globally, affecting more people annually than any other disaster type.
• •Flash floods can occur within minutes of heavy rainfall, making them particularly dangerous with little warning time.
• •Landslides are triggered by saturated soil conditions, earthquakes, or volcanic activity, with deforestation significantly increasing risk.
• •Storm surge from hurricanes can raise water levels by over 6 meters, causing catastrophic coastal flooding.