Let's hear your theories....

[KnightofNi]

Military probably dropped a daisy-cutter on some village they were biologically experimenting on

if anything it was a new weapon that explodes without fire.




given to humans by the aliens

[Speedbag]

It wasn't me....I live nowhere near there. 

[pennyrobber]

Bean burrito.

[superjohn]

I like the earthboom theory. Kind of interesting.

Or it was the super secret Mach 5 spy plane on the way to take pictures somewhere.

[Betty Rage]

Here's what they are saying was the culprit: http://www.kptv.com/news/22990857/detail.html

Pipe bomb. Must have been a big bomb, the boom was heard for miles. It was reported as being heard from Vancouver, WA all the way to Happy Valley, OR. That's about 300 30 miles. Sorry for the typo.

[WhiteStripe]

Non EPA certified exhaust system

[NorDog]

Sasquatch lighting farts.

Big Foot = Big Farts.

[SacDuc]

Military probably dropped a daisy-cutter on some village they were biologically experimenting on

There was no way to know how the microbes collected by the Mars probes would mutate when passed between the albino ESP warriors and the mole people army unless they were exposed in the actual tunnels. So things got out of hand. Who could have predicted the mutated microbes would start producing bioluminescent chemicals that made the mole people army paranoid and stabby. Quit blaming the military. Why do you hate America?

sac

[Jobu]

http://www.kptv.com/news/22990857/detail.html

I got really drunk last night.  Hope I wasn't in the Portland area.

Don't really see how it could have been heard that far away, even with cloud cover and an embankment.

[Porsche Monkey]

Randall broke the sound barrier on a slightly modded 620

Your a real arsehole Joel.  Shiner Hefeweizen really burns the nostrils. Not cool.  

[Preisker]

Put the magneto back in the Bonneville and it was out of time.   The boom was my knee hitting the handlebars.    Ask me how I know this.

[Grampa]

Your a real arsehole Joel.  Shiner Hefeweizen really burns the nostrils. Not cool.  

please dont sick the mongols on me

[GAAN]

You live in one of the most active seismic regions in the world...with active volcanoes to boot. Always having an emergency pack at home is an extremely good idea...loud boom or not. 3 days of food and water is the general rule...5 days is better. 

we live in the 21 minute zone

no need for the backpack

just a will

[Holden]

Sounds familiar... http://en.wikipedia.org/wiki/Dyatlov_Pass_incident

[TiNi]

wow... FReaKY 

even though "officials" say pipe bomb,
i'm thinking it was an earthquake boom

pack your emergency kit neenjah