Mass Whale Stranding in Yorkshire

I know the area quite well, so it was sad to read that a pod of 10 Sperm whales had beached themselves, on Christmas eve, between Tunstall and Withernsea in Yorkshire (https://www.theguardian.com/environment/2020/dec/24/group-of-whales-washed-up-on-east-yorkshire-beach). Sperm whales are very large and it proved impossible for helpers, to get these cetaceans out again into the North sea from this shallow area. All the whales died. This seems to have been the biggest mass stranding in England, since records began in 1913. As usual, it is difficult to establish the reasons for the occurence of this sad event.