Just last year, a massive landslide in Alaska triggered a megatsunami that researchers have now mapped and analyzed— identifying it as the second-highest tsunami wave ever recorded. In the early hours of Aug. 10, 2025, a colossal landslide tore from a mountainside above a softening glacier in Alaska’s Tracy Arm fjord, sending debris into the water below and unleashing a massive wave that reached more than 1,500 feet high through the scenic area. The 1,578-foot megatsunami tore through a scenic Alaskan waterway 45 miles south of Juneau. Now, a new analysis offers a rare glimpse into how the catastrophic landslide and wave unfolded. The study, published in Science, identified the conditions that led to the landslide and the dangerous megatsunami that reached heights that exceeded New York City’s Empire State Building.  “Just an unfathomably large wave was generated.…