“Massive Greenland Landslide Sends Seismic Waves Around Earth for 9 Days”

• On September 16, 2023, seismic stations worldwide detected a strange signal, indicating that earthquakes did not cause the tremors.
• The signal lasted for nine days, indicating that the reverberations from the seismic waves were caused by a massive landslide on the banks of the Dickson Fjord in Greenland.
• The team of over 68 researchers from 40 universities in 15 countries gathered data and computer simulations to resolve the enigma.
• The landslide, a geological structure created when glaciers erode a valley below sea level and flood it, resulted in a mega-tsunami.
• The avalanche triggered a submarine landslide, displacing water enough to give rise to a 200-metre-high mega-tsunami.
• The mega-tsunami damaged an unstaffed research facility on the island of Ella and monuments of cultural and archaeological importance in the area.
• The waves in the fjord were reflected back and forth by the opposing banks, reaching a height of almost 110 metres.
• The reverberations spread across the globe, causing the entire earth to ring like a gong.
• The ice at the glacier’s foot had supported the rocky slopes, which had been shrinking rapidly due to global warming.
• The melting glacier led to a planet-wide tremor, and it may not be the last. As permafrost on steep slopes continues to warm and glaciers continue to thin, these events are expected to happen more often and on an even bigger scale across the world’s polar and mountainous regions.