# Glacial melting and disaster risks in the Andes

> Live situation record from CLSTR: https://clstr.news/situations/glacial-melting-and-disaster-risks-in-the-andes
> Updated: 2026-09-09T00:00:34.000Z. Sources: 11. Developments: 3.

The Andean region is facing increased natural disaster risks due to significant glacial retreat. In Peru, the National Institute for Research on Glaciers and Mountain Ecosystems (Inaigem) reported a 60% loss in glacial surface area, identifying 58 glacial lagoons at very high risk of overflowing. Specific concerns were raised regarding the Áncash and Cusco regions, including instability at the Huascarán mountain peaks and threats from Laguna Parón and Palcacocha.

Following these warnings, scientists from Peru, Chile, and Argentina have begun collaborating on mitigation strategies to address glacier collapses and massive floods. While Peru remains a primary focus due to its high concentration of tropical glaciers, research has expanded to include Chile’s central region. Additionally, in Peru’s Áncash region, Ingemmet issued alerts regarding an active debris flow in the Sisco sector originating from Yanamacha hill, which poses ongoing risks to local populations.

As climate change continues to accelerate retreat, glaciologist Lucas Ruiz noted that warming temperatures act as a catalyst that intensifies natural hazards, especially for populations located in valleys below. To address the threat posed by over 500 potentially dangerous glacial lakes, experts are proposing the installation of early warning systems. These proposed technologies include ultrasonic water level sensors, automated weather stations, and high-resolution cameras connected via satellite to provide automated alerts to local civil protection centers.

## Timeline

### 2026-09-09: Andes glacier retreat prompts early warning sensor proposals

Accelerated glacier retreat in the Andes is driving efforts to install early warning sensors across 500 potentially unstable glacial lakes to protect communities from floods and landslides.

2 sources. https://clstr.news/cluster/andes-glacier-retreat-prompts-early-warning-sensor-proposals

### 2026-09-06: Andean scientists develop mitigation plans for glacier and landslide risks

Scientists in Peru, Chile, and Argentina are working to mitigate risks from glacier collapses and landslides in the Andes, driven by significant glacial melting and climate change.

2 sources. https://clstr.news/cluster/andean-scientists-develop-mitigation-plans-for-glacier-and-landslide-risks

### 2026-08-27: Peru: 58 glacial lagoons identified at very high risk of overflowing

Inaigem warns that 58 glacial lagoons in Peru face a very high risk of overflowing due to melting glaciers, threatening thousands of people, particularly in the Áncash and Cusco regions.

8 sources. https://clstr.news/cluster/inaigem-warns-of-58-high-risk-glacial-lakes-in-peru

---
Cite as: Glacial melting and disaster risks in the Andes. CLSTR, https://clstr.news/situations/glacial-melting-and-disaster-risks-in-the-andes