begonia wroteYap, we feel it as well and the same, run away to the garden, to me it was different from another times, it is hard to explain but I felt or heard like a storm or thunder on the top of our house, like some kind of sound.
In my husband village when these things happen, the first thing people does is run away outside of the houses and start to make sounds and noises with anything they have around, in order to tell everybody around in case there is people still sleeping on the houses who didn't note it, but here in Ubud it seems like nobody really care or do much.
It was very short but more intense than others time.
I was one of those people that didn't do anything to alert other people but after reading your post it is something I will do next time. Good thinking.
