Nepal floods: Glacial collapse triggered disaster
The deadly flash floods in Nepal, which originated in Tibet, were not triggered by a 4.4-magnitude earthquake as initially thought, according to the US Geological Survey (USGS). Analysis of seismic waves, data from seismic stations, and satellite imagery revealed that the disaster was caused by a glacial collapse and subsequent debris flow.
The USGS corrected the magnitude of the seismic event from 4.4 to 5.2. The flooding affected the Rasuwa and Dhading districts along the Tibet border, destroying settlements, roads, bridges, and power infrastructure, leaving hundreds of people missing.
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