SeisMac Graph

SeisMac Graph
This is Dick's recording of the 2nd big aftershock today - originally registered at 6.9 and later downgraded to 6.7. Sudden motion sensors surrounding the hard drives in Macintosh computers are used to record the seismic motion of earthquakes.

Be sure to check out the older posts for earthquake photos.

Thanks to all for their concerns for our safety and well-being!

Thursday, March 11, 2010

Big Aftershocks Got Everyone's Attention - Info 3

Revised USGS list of the 12 aftershocks that we have had today, 11 March 2010 and it's only 4:00 p.m. local time!

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