PDXBoom

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Revision as of 19:14, 29 March 2010 by MarkDilley (talk | contribs) (add Category)
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PSU seismograph snapshot. The boom is visible at 20:04 PDT or 03:04 UTC (click to enlarge).

Around 8:04PM on March 28, 2010, a mysterious boom was heard throughout Portland.

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