Tsunami warning issued after 7.9 magnitude earthquake off coast of Alaska.

http://www.whio.com/news/local/tsunami-warning-issued-after-magnitude-earthquake-off-coast-alaska/gEZ6sTZeaXW8rJ2g7e42XP/

Yikes, hope this fizzles out before doing any real damage.

I believe it was already cancelled. 

posted by Fab4Runner

I believe it was already cancelled. 

It was.    Fake news.

How do they even know? That's some crazy shit.

posted by Commander of Awesome

How do they even know? That's some crazy shit.

Sea bouys have wave height measuring sensors, along with other stat gathering devices. 

posted by QuakerOats

Sea bouys have wave height measuring sensors, along with other stat gathering devices. 

True but doesn't the earthquake itself trigger the warning?

posted by thavoice

True but doesn't the earthquake itself trigger the warning?

I think so, and 7.9 is no joke.

Though the devastating Indonesia tsunami was trigged by a 9.1-9.4 (which, I don't know the math, but I think is @ 125X more powerful than a 7.9)

posted by thavoice

True but doesn't the earthquake itself trigger the warning?

Supposedly the quake triggered a 32 foot shift in sea water; if so, a warning should go out ASAP.  Then, after sea bouy data comes in, any corrections/clarifications should issue.  If there really was a 32 foot shift, I still can't believe there wasn't a tsunami, but so be it.