During the second week of January 2012 a rush of videos on YouTube depict a strange low frequency noise that was heard around the world. The videos continued through out the month and into February. Additional videos can be found going back as far as 2010.
Home videos and news clips from Canada, England, the U.S., Poland, Germany, Russia, Costa Rica, Belgium, Hungary, Costa Rica and several other countries flooded YouTube causing panic across the globe.
These strange noises are yet unexplained.