In early August 2024, southern Alaska was struck by an atmospheric river that triggered a massive landslide in Pedersen Lagoon, resulting in a 56-foot tsunami. The landslide, which involved roughly 2 million cubic meters of rock and debris, devastated the area, flattening vegetation and damaging infrastructure. Subsequent satellite images captured the significant alterations in the landscape. This event highlights the environmental vulnerabilities caused by glacier retreat in the region, which has been ongoing for decades.