Windows shaking !

I heard a couple of big bangs here in Pin Mill around 3pm. They are often heard here, particularly on Mondays, is that their day for destroying old ordnance?
 
Normally makes our windows rattle, Nothing heard today and I was on the sea wall around that time.. (but maybe I don't take any notice any more)
 
They're getting closer. Wivenhoe has been shaking and booming all day. Either that, or there was something very wrong with last night's meat pie.
 
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