Large explosion noise heard from nimmanhaemin, what was it? Sounded too large for a single firecracker.

Probably a transformer explosion unless someone can confirm otherwise.

Dunno but Chinese New Year seems to have brought out the pyrotechnics this year near me - usual small crackers then the occasional boom like a canon going off - maybe just some of those big Chinese bangers. Seem to be letting them off during the day too - which is strange for fireworks. Hopefully its just that.

Could also be loading/unloading - if you have any construction going on. We had some new houses being built down the road, when they delivered, they just dropped them off the back of the truck - also sounded like a gun going off.

I'm at Nimmen and neither I nor my dog heard anything unusual. Lots of construction going on around here so there is noise throughout the day, most days.

Some of the fireworks used in the past were the size of large plum puddings. I saw one let of in a street in Phuket which shattered some plate glass windows.

There's probably rules about such things, but who listens??