Why Did Earth Vibrate for Nine Days in 2023?

Accessible article: <https://www.theguardian.com/environment/2024/sep/12/entire-e...>

(Submitted separately: <https://news.ycombinator.com/item?id=41524077>)

Because of a landslide at Dickson Fjord in Greenland. https://www.newscientist.com/article/2447567-greenland-lands...