What's Happening?
A new study has identified hundreds of iceberg-induced earthquakes at the Thwaites Glacier in Antarctica, also known as the 'Doomsday Glacier.' These glacial earthquakes occur when large icebergs break
off and capsize, generating seismic waves. The study, soon to be published in Geophysical Research Letters, found over 360 seismic events between 2010 and 2023, primarily near Thwaites and Pine Island glaciers. The findings suggest that these events are linked to the accelerated flow of the glacier's ice tongue towards the sea.
Why It's Important?
The detection of these glacial earthquakes provides critical insights into the stability of the Thwaites Glacier, which has significant implications for global sea-level rise. If the glacier were to collapse, it could raise sea levels by up to 3 meters. Understanding the dynamics of iceberg calving and its impact on glacier stability is essential for predicting future sea-level changes and preparing for potential environmental and socio-economic impacts.
What's Next?
Further research is needed to explore the interaction between ocean conditions and glacier stability, particularly at Thwaites Glacier. This could help refine predictions of sea-level rise and inform global climate policy. The study's findings underscore the importance of continued monitoring and research in polar regions to better understand the effects of climate change.
