www.gandul.ro/magazin/in-septembrie-2023-seismomet

In September 2023, a peculiar seismic signal was detected globally for nine days, originating from an isolated fjord in eastern Greenland. This signal, repeating every 92 seconds, was linked to a massive landslide that triggered a tsunami, causing water to oscillate against the fjord's rocky walls. Researchers found that the fjord's shape trapped the waves, creating a phenomenon known as 'seiche.' The study revealed that the initial wave amplitude reached 8 meters, with satellite data confirming water level changes of up to 2 meters. The glacier's thinning was identified as the primary cause of the landslide, not wind or sea level changes.