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Massive Glacier Collapse Caused Deadly Mudslide, Expert Says

The collapse of a glacier and rocks, in an area extending about one kilometer wide and about two kilometers long, is highly likely to have caused the deadly mudslide that occurred along the border between Nepal and China, according to a professor at The University of Tokyo.

A massive glacier collapse and subsequent mudslide along the border between Nepal and China has been linked to a professor's analysis, according to the University of Tokyo. Professor Hidenori Watanabe, who specializes in satellite image analysis, determined that the glacier, spanning approximately one kilometer in width and two kilometers in length, likely caused the deadly mudslide.

This analysis utilized 3D models constructed from data captured by U.S. Earth observation satellites and other sources preceding and following the event. The professor confirmed that the glacier's collapse exposed soil at an elevation of around 5,000 meters due to a large-scale breakup of ice and rock. The U.S. Geological Survey (USGS) estimates that the glacier collapse released energy equivalent to a magnitude 5.2 earthquake.

The mudslide traveled down the valley, engulfing nearby villages and ascending about 700 meters up the slope from the riverbank in certain areas. Professor Watanabe emphasized that this incident marks an unprecedented disaster, validating predictions made about global warming leading to glacier collapses and subsequent flooding.

Written by urgent.news from The Japan News by The Yomiuri Shimbun's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.

Read the original at japannews.yomiuri.co.jp →

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Rising temperatures in the Himalayas have led to an alarming increase in glacial lakes. According to a recent study published in the journal Nature, the number of glacial lakes in the region has surged by 1,362 over the past nine years. The research, conducted by the University of Zurich and the University of Leeds, utilized satellite data to track changes in glacial lakes across the Himalayas from 2015 to 2022. The findings indicate that the region has witnessed a significant rise in the number of glacial lakes, which are formed when meltwater from glaciers accumulates in depressions. The study revealed that the total number of glacial lakes in the Himalayas has increased from 4,575 in 2015 to 5,937 in 2022. This represents a 30% increase over the seven-year period. The researchers attribute the growth in glacial lakes to rising temperatures and the resulting increase in glacier melt. As the planet continues to warm, glaciers in the Himalayas are melting at an unprecedented rate, leading to the formation of new glacial lakes. The study's lead author, Dr. Daniel, stated that the increase in glacial lakes poses a significant threat to communities living downstream. "Glacial lakes can be a source of freshwater, but they also pose a significant risk of glacial lake outburst floods," he said. Glacial lake outburst floods occur when a glacial lake suddenly bursts, releasing massive amounts of water downstream. These events can be devastating, causing widespread destruction and loss of life. The Himalayas are particularly vulnerable to the impacts of climate change, with rising temperatures and changing precipitation patterns affecting the region's glaciers and ecosystems. The study's findings highlight the need for continued monitoring and research into the impacts of climate change on glacial lakes and communities in the Himalayas. The research was funded by the University of Zurich and the University of Leeds, and the data used in the study was provided by the European Space Agency.

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