1958 Lituya Bay megatsunami
en.wikipedia.org
en.wikipedia.org
Even after decades had passed you could see the sheer terror and awe of how they survived.
Edit: still cannot find the reference. But the Canary Islands are poised to wipe out southern England - a sizeable chunk of the NE facing island is ready to fall and would send a tsunami undimmed onto England / France.
As a side note this is my goto atheist argument. No way is it a miracle. If God existed, He would look at catching a boat in a tsunami and chucking it safely over a mountain to another lake and say "nah that's a bit obvious"