28K views · 488 reactions | Peak discharges from Ice Age floods may not be explained by ice dams alone. A major earthquake —or even a cosmic impact into the ice sheet— could unleash forces equal to a magnitude 8 quake, fracturing ice and triggering catastrophic floods. Some geologists suggest multiple events, but even a single dam holding back 2,000 feet of water stretches plausibility. Resealing and failing again and again only multiplies the problem. | The Randall Carlson | Facebook

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