500 Meter Tall Megatsunami in Alaska (Aug, 2025 Event) Confirms Something Important

I'm impressed with how coherently you can speak about a complex topic every day. For many years. Which is a reason why I usually give a thumbs up.

It's worth mentioning that the kayaks and equipment that the Alaskan megatsunami destroyed belonged to some campers who were present at the time and survived. They reported seeing a 100-ft wave which is only 30m so they were obviously a good distance from the event. Still I bet their blood ran cold when they saw and heard the colossal amount of rock and ice falling into the water. Terrifying.

One of my concerns as the mayor of Tahsis, BC is that we have an unstable mountain a few kilometres down the inlet and a large delta that has infilled half the inlet at one point. Our area is also subject to large offshore tsunamis every 300-600 years due to subduction of the Juan de Fuca plate (the last was 1700). We are somewhat protected from these by Nootka Island and should have time to evacuate (we have tsunami sirens in town). My greater concern is if the unstable mountain fell or the delta slumped, it would generate a wave that we have only minutes to evacuate from. I am talking to Natural Resources Canada about having water height/depth sensors placed down the inlet that would directly trigger the sirens. Our area is known for large landslides, such as the nearby Nomash slide in 1999. A 430m high cliff fell, travelled 40m up the opposite side of the valley and then a mile downstream in an uninhabited area. No lakes were involved, just debris and displaced stream water.

"Ice studded tsunami" sounds even scarier than "sharknado"!

1500 feet! Imagine witnessing that from the opposite mountaintop and seeing the wave coming, and coming, and coming, wondering if it would wash over you.

My family and I were in Tracy Arm a couple of years ago on a boat tour. Impressive glacial activity. We could hear the ice and rocks grinding. Some large calving was witnessed as well. To think we were just 100 meters from the face of the glacier and know that the mountain just to the East was destined to collapse at some point in the future is sobering. My photos before and the photos you posted is outright terrifying. Thank for this and the sloshing aspect of this event.

Knowledge is power, stay wonderful Anton. :)

My son is a tour boat captain in Juneau, Alaska and just happening to be taking a tour to Tracy’s Arm about 5 hours after the landslide and tsunami. No one knew for sure what happened until he and other people reported back their findings. There was a lot of trees and ice from the glacier floating in the water he had to negotiate. Fortunately, Tracy’s Arm is in a very remote area and the tsunami happened at 5:28am, otherwise, the 1585 feet wave would’ve caused loss of human lives. The campers were very lucky they survived with a 20 feet wave wiping out the island they were camping on 25 miles south. The campers did lose all their gear. That was the second largest tsunami ever recorded.

In October 1963 in northern Italy part of the Monte Toc mountain fell into the Vajont reservoir. The resulting wave on the reservoir was about 250m high. It went over the Vajont dam and quite destroyed the town of Longarone and neigbouring villages killing 2000 people. Longarone is several hundred metres lower than the dam. .

Man I appreciate this no fluff, no ai slop, pure science, logic and reasoning. Subbed. Good work, Anton!