Tracy Arm’s Post-Tsunami Landscape

Earth Observatory Science Earth Observatory Tracy Arm’s Post-Tsunami… Earth Earth Observatory Image of the Day EO Explorer Topics All Topics Atmosphere Land Heat & Radiation Life on Earth Human Dimensions Natural Events Oceans Remote Sensing Technology Snow & Ice Water More Content Collections Global Maps World of Change Articles Notes from the Field Blog Earth Matters Blog Blue Marble: Next Generation EO Kids Mission: Biomes About About Us Subscribe 🛜 RSS Contact Us Search   July 26, 2025 August 19, 2025 NASA Earth Observatory/Michala Garrison NASA Earth Observatory/Michala Garrison July 26, 2025August 19, 2025 NASA Earth Observatory/Michala Garrison NASA Earth Observatory/Michala Garrison July 26, 2025 August 19, 2025 CurtainToggle2-Up Image Details The shores of Tracy Arm, a fjord in southeast Alaska, are stripped of vegetation following a landslide and tsunami that occurred on August 10, 2025. The OLI (Operational Land Imager) on Landsat 8 and Landsat 9 show the area in the weeks before and after the event, respectively. Carved over millennia by the pressure and motion of glacial ice, the valley walls cradling the Tracy Arm fjord in southeast Alaska continue to be reshaped. In summer 2025, following the rapid retreat of South Sawyer Glacier, a large landslide sent…

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