Bureya River: a landslide but not a meteorite impact in Russia.
From this imagery we can say that this is certainly a rockslope failure, and that it is highly unlikely to be associated with a meteor impact event. The slope appears to show a pre-existing tension crack or depression that aligns with the rear of the failed mass. This is at an elevation of about 580 m, the valley floor is at about 190 m.
See videos etc here
https://blogs.agu.org/landslideblog/2018/12/25/bureya-river-1/
Thanks AdmSmith.
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AdmSmith: Bureya River: a landslide but not a meteorite impact in Russia.