Strange sounds worldwide recently

[midnight rambler]

I know that JDR closed his thread on this after Chad asserted all the videos are hoaxes, however while there are definitely some hoax videos on youtube, some are real enough to get media attention, e.g. some of this one in Costa Rica sounds much like the one before the earthquake in Colorado -


http://www.youtube.com/watch?v=WgcZ_bii1PA&feature=related

[chad]

that's definitely different audio than the fake ones. good catch.

[DMac]

MR, I started a thread on this subject after the first one went down the memory hole. I've updated it as I've come across these stories:

http://gold-silver.us/forum/showthread.php?54134-Strange-noises-reach-Canada

[sirgonzo420]

Gearing up for Bluebeam?

[JDRock]

Gearing up for Bluebeam?
Que 'es bluebeam??