Initial points Twenty nine sperm whales have now stranded on the North Sea coasts of UK and France, Netherlands, & Germany; these sources provide the bare bones of the event. It will be interesting to see what the data being collected reveals.
Map of the distribution of the strandings – Whale and Dolphin Conservation Society
http://uk.whales.org/news/2016/02/new-sperm-whale-stranding-on-uk-east-coast
What we know so far from Reuters
http://uk.reuters.com/article/uk-britain-whales-idUKKCN0VE1LW
ZSL heavily involved in the UK in recording the event and trying to understand its cause
Listen to Rob Deville ZSL on what happens once they have stranded