What the heck is going on indeed ? Remember this is Doomsday 2012. People from all over the world are noticing scary and eery sounds coming from the earth itself. It could be a magnificent hoax but too many reports are coming from various parts of the planet.
And here in Vancouver Island we had a non-earthquake that was felt and reported by thousands. The local paper quoted an official stating that they had received several calls. Try hundreds if not thousands.