[winoneforthegipper]

Reviewing the webicorders tonight, there was indeed a large harmonic tremor capture on all of the webicorders.

Shortly after 12:01 on the YPK station recorded it best.

http://www.quake.utah.edu/helicorder/ypk_webi.htm

Few things to note, since it appeared on all the webicorders this was not a localized event i.e. radio influence, traffic or geyser.

Also, note how each webicorder is set up to record such and event, quite the difference.

There were no large earthquakes recorded elsewhere in the world that remotely would match up to this being an Long duration S/Wave.

I am one hundred percent convinced this was a small harmonic event.

[Steve Van Doorn]

sure looks like it