I have not got time to do it at the moment but looking at the big map of the UK on my wall in the office and loosely connecting all of the places that saw 'protests' and 'riots' on between Friday and Sunday I am prety sure it would make a massive cross. Eg Hull to Southport taking in Liverpool and Manchester at the other end with Leeds smack in the middle. Then go down from Hartlepool and Middlesborough it takes in Rotherham, Barnsley and Sheffield through to Stoke and then Bristol. Today it seems to be kicking off in Plymouth.
Although not perfectly straight it does appear to be a big christian cross. I am not sure I have missed anywhere else other than London but there were no real 'riots' there, more gatherings.