In 2023, for nine days, the earth shook every 90 seconds.
What happened? A landslide in Greenland dumped millions of tons of rock into a fjord, causing a tsunami wave that sloshed back and forth like water in a bathtub. Seismometers around the world registered the shaking.
https://www.science.org/content/article/megatsunami-remote-fjord-rang-earth-bell-9-days
Among Giants: A Brief Hydrological History of the Upper Midwest
"The Mississippi River and its valley dominate the physical geography of the Twin Cities. It — along with the aptly named Minnesota River, its largest Minnesota tributary, and the Red River, which drains northwestern Minnesota and the eastern Dakotas on its slow course toward Hudson Bay — offers a window into the thousands of years of sometimes violent geological change"
https://streets.mn/2024/12/20/among-giants-a-brief-hydrological-history-of-the-upper-midwest/