Published on: September 13, 2011 at 8:01 PM

From Steve Jones in Huntsville…

“James,
Here is the Huntsville seismogram from the small M3.0 event there in Birmingham a short while ago. Feel free to post this on the blog if you wish.

The first P waves arrived here in Huntsville about 20 seconds following the event, and the S wave arrival followed some 15 seconds after that.”

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