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Nepal Floods: Glacier Collapse Likely Triggered Deadly Flash Flood

Preliminary findings suggest a glacier collapse caused Nepal's deadly flash flood, with authorities now warning of a new lake overflow risk.

The catastrophic flash flood that struck Nepal earlier this week was likely set off by a massive chunk of a glacier breaking off and temporarily blocking a river, according to initial scientific assessments. The impounded water is believed to have then surged downstream with immense force, causing widespread destruction.

Researchers are still compiling data from satellite observations and ground-level monitoring to establish the precise sequence of events that led to the disaster. The U.S. Geological Survey reported on Wednesday that it detected a magnitude 5.2 glacier collapse, using information from nearby seismic stations and satellite imagery.

As the region grapples with the aftermath, authorities have issued a fresh warning about a newly formed lake in the high Himalayas. There are concerns that this lake could overflow, potentially triggering another round of flooding in the area. Local officials have been using megaphones to alert residents near rivers to move to higher ground and stay away from the water's edge.