The top 5 natural disasters of 2025
Posted on Dec 28, 2025 / Nature

- Sumatra floods and landslides (Indonesia) – Severe flooding and landslides struck Aceh and other parts of northern and central Sumatra, displacing millions of people and causing widespread destruction. Heavy rainfall triggered by extreme weather led to flash floods that overwhelmed rivers and infrastructure. This disaster was one of the deadliest in Indonesia in recent years and required large‑scale emergency responses.
- Cyclonic Storm Senyar – This powerful cyclone brought torrential rains and flooding across southern Thailand, Peninsular Malaysia, and Sumatra, resulting in a high human toll and extensive damage. The storm’s heavy rains caused landslides and overwhelmed local communities. It was remembered as one of the most impactful tropical cyclones in the region in 2025.
- South and Southeast Asia floods – Extensive monsoon and seasonal flooding impacted multiple countries, including India, Pakistan, Bangladesh, and China, leading to massive displacement and loss of life. Rivers overflowed and inundated towns and farmland, forcing evacuations on a large scale. These floods contributed to one of the costliest and most widespread climate disaster series of the year.
- European heatwaves – Southern and Western Europe endured prolonged and extreme heat throughout the summer months, pushing temperatures past 45 °C in some regions and overwhelming local health systems. The extended heat stressed infrastructure and contributed to drought and wildfire conditions in many areas. These heatwaves were among Europe’s most intense on record in 2025.
- 2025 St. Louis Tornado – An intense EF3 tornado tore through parts of Greater St. Louis, causing major property damage and several fatalities. The storm carved a destructive path through residential neighbourhoods, prompting emergency declarations and relief efforts. Its economic cost and sudden impact made it one of the most notable tornado events of the year.
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