A doorbell camera caught the moment a huge loud bang woke people in Merthyr in the early hours of Sunday morning - October 16.
Merthyr Tydfil man Brian Evans was woken at about 1.30am, along with many others in the town, according to comments on social media. Brian, a retired engineer who lives in Pant, thought the noise came from building work at his property.
"It woke me out of bed, I went outside to the garden to look around, I thought it was something from the building work that is being done on my house," said the 58-year-old. It wasn't until the next morning, when his daughter asked him if he heard the thunder, that he realised what the sound was. You can read more stories about Merthyr Tydfil here.