Not diy - but I hope is of interest to folk here.
We have an old and large wardrobe. It regularly creaks in ways I have reconginise for years. Early this morning a LF "buzz" (~10-20Hz) emmanated from it. I estimate the time at about 06:30. It woke me up as was such an uncharacteristic noise from said wardrobe.
I wondered (*honest I did guys*) whether there was another quake in Haiti and this wardrove detected it. There was another such wardrobe-noise about an hour after that - but much quieter.
On the lunchtime news they announced another 6.1 quake in Haiti ... at
06:00 local time!Of course 06:00 there is not 06:00 here - and I wish I'd noted the exact time - but as best I can tell it was as I said, about 06:30
Maybe I have the world's first quake-detecting wardrobe?