Here a comment sent to me yesterday. Did you also hear it?
I just wanted to report a huge boom last night i know it wasnt thunder, i was woke up at 3 in the morning with my cat trying to get out of my bedroom by scratching the door, i put on my light and told her to settle down which she did after 5 minuets, she came and lay down beside me beside and we both fell asleep i dont think i was in a deep sleep, when i was woken up by this huge boom bang and my windows were shaking and rattling slightly, my cat stood up arched her back stared at the window and hissed twice, i looked towards the window and saw light but i am now unsure if there was a light or if it was just daylight coming in, i turned on my dimmer bedside lamp, i knew i had to look out of the window but my cat had freaked me out a bit with her reaction…when i looked out i looked at the time it was around 3.30, it was pretty light outside and i couldnt see anything…my cat came up to the window to look out with me.. but i lifted her back onto my bed and she lay down and fell asleep pretty fast which was bit strange, anyway i couldnt get back to sleep the last time i looked at my watch was 5.55 there was no thunder iv heard loud thunder at night and my cat never reacts to thunder…wondered if it was a sonic boom as it was a strange boom. i know RAF jets are not allowed to fly over ton at night. i live in a small town Banff in Scotland it is on the North East Coast…dont suppose there is any way of finding out what shook my windows and freaked my cat out.