[Keith in Iowa]

>>>A lot of digital clocks are synchronized based on the frequency of the electrical grid. It the eruption knocked that out if wack it could mess up clocks.

Explain the watches running fast also mentioned in the article...

[bigtoona]

Actually a lot of clocks and watches use a quartz crystal to keep time:

http://en.wikipedia.org/wiki/Quartz_watch

maybe the magnetic fields or some other interference is messing up the frequency the crystals vibrate?

[SunkenCiv]

Thanks FrogMom for the question and ping, thanks Keith in Iowa for the thought in message 7.

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