Reply To: What was that loud explosion noise over London at 10:15 pm on May 5 2016?

[Strange Sounds]

It seems there were big fireworks as a luxury ship entered Greenwich, London, yesterday night:

http://www.dailymail.co.uk/travel/travel_news/article-3574936/Now-S-Viking-long-boat-Luxury-Scandinavian-cruise-ship-makes-dramatic-entrance-London-sails-Thames-way-naming-ceremony.html