Nepal Floods Kill 359 as Glacier Collapse Triggers Himalayan Disaster; 34 Australians Missing

A glacier collapse high in the Himalayas triggered catastrophic flash floods along the Nepal-Tibet border on Wednesday, killing at least 359 people and leaving nearly 1,500 missing. Among those unaccounted for are 34 Australians, many on hiking tours and pilgrimages. The disaster destroyed bridges, roads and homes across multiple districts as rescue teams struggle to reach remote areas.

How the glacier collapse unfolded

At 8:37am local time on Wednesday, an enormous section of glacier in Nepal’s Langtang National Park, about 35 miles north of Kathmandu, sheared free and crashed onto the valley floor. The force of the collapse was so powerful it initially registered as a magnitude 4.4 earthquake. The US Geological Survey later determined the tremor was caused by glacial rock and ice collapsing, registering magnitude 5.2. According to Göran Ekström, a geophysicist at Columbia University’s Lamont-Doherty Earth Observatory, the event released energy equivalent to a 5.2 earthquake registered on seismographs globally.

The deadly wall of water that followed

The glacier collapse triggered a massive release of water, mud, rock and ice that thundered down the Lhende Khola, Bhote Koshi and Trishuli rivers. Ekström estimated the flood waters were outrageously high, possibly 130 to 160 feet, moving as fast as 44 miles per hour. The wall of debris obliterated buildings, swept away lines of buses at the Gyirong border post connecting Nepal and Tibet, and destroyed at least 19 bridges and about 25 miles of roads. In seconds, houses and entire sections of towns vanished beneath the torrent.

The missing and confirmed dead across the region

Nepal police confirmed 359 bodies have been found across nine districts, with the highest toll of 132 in Chitwan and 82 in Nawalparasi East. According to Nepal’s tourism board, 826 people are missing in Nepal, including 579 foreign nationals. The 34 missing Australians include tourists on hiking tours and pilgrims. Across the border in Tibet’s Gyirong County, 558 people are missing, including 260 foreign nationals. Other missing nationals include 133 from India on pilgrimage to Mount Kailash, 47 from the United States, 33 from Britain and 24 from Canada.

Climate change and future flood risk

Ekström told ABC News that climate change is accelerating the melting of ice and glaciers globally. While such landslides would occur without climate change, he said climate change may enhance their frequency and severity. Landslides in mountainous Himalayan regions are becoming more frequent and are linked to glacier melting. A lake has formed at the flood site and is rising, creating risk of further bursting, prompting Nepal’s disaster authority to appeal to residents and rescuers to stay away from riverbanks. Scientists have warned the Himalayan region is vulnerable to this type of flooding due to numerous potentially dangerous glacial lakes.

Final Thoughts

The Nepal-Tibet border disaster underscores the vulnerability of Himalayan communities to catastrophic glacial events. With 359 confirmed dead and nearly 1,500 missing, including 34 Australians, rescue operations face severe challenges from damaged infrastructure and rising water levels. Climate-driven glacier melt is expected to increase such events.

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