"Landslides are the most common geological event. That's a fact. They affect millions of people and cause many thousands of deaths. They often occur in countries with poor or inadequate infrastructure such as in Sudan's Marra Mountains region in late August 2025. Just the year before, in 2024, there were two major landslides in the same region. In Papua New Guinea, a reported 2,000 people were buried alive following a landslide in May 2024."
"In 2020, the World Bank estimated the average annual number of significant rainfall-triggered landslides between 1980 and 2018, by country. The World Health Organization says that between 1998 and 2017, landslides affected about 4.8 million people and caused more than 18,000 deaths worldwide: "Climate change and rising temperatures are expected to trigger more landslides, especially in mountainous areas with snow and ice. As permafrost melts, rocky slopes can become more unstable, resulting in a landslide.""
"Landslides are classified by the way the land moves into four rough groups: falls, topples, slides and flows. A fall involves material such as rock that falls through the air from a cliff or other steep slope. The rock may also roll or bounce as it falls. A topple happens when, for example, a slab of rock moves forward from its base and topples toward the ground."
Landslides are the most common geological event and affect millions worldwide, causing thousands of deaths. They occur in both low-income regions with inadequate infrastructure — for example in Sudan's Marra Mountains, Papua New Guinea, and illegal mining sites in Indonesia — and in high-income countries. Between 1998 and 2017 landslides affected about 4.8 million people and caused over 18,000 deaths. Climate change and rising temperatures, including permafrost melt in mountainous regions, are expected to increase landslide frequency. Landslides are categorized by movement into falls, topples, slides and flows, and vary by moving material such as bedrock or debris.
Read at www.dw.com
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