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Re: Seismic Zone

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"Sprague, Harold O." wrote:

>From the USGS web site:
The input zip-code is 13202.
LOCATION        43.0447 Lat.    -76.1512 Long.
NEAREST GRID POINT 43.0 Lat. -76.2 Long.
Probabilistic ground motion values, in %g, at this point are:

        10%PE in 50 yr  5%PE in 50 yr   2%PE in 50 yr
PGA     3.128191        4.878041        8.638732
0.2 sec SA      7.737466        11.779650       19.111610
0.3 sec SA      6.648056        10.165940       16.965389
1.0 sec SA      2.793040        4.401655        7.734525

Harold Sprague

"I always wanted to be somebody, but I should have been more specific."

                                                                                                                    -- Lilly Tomlin

Be sure not to confuse the 5 digit zip code with the six decimal places in the PGA or the Spectral Ordinate.  Only a seismologist would print numbers like these.  The earthquake problem is a lot like the 22 story building that Harold Sprague inspected: after the first two floors, be careful!

James Bela

Oregon Earthquake AwarenessTM        /      The Quake NorthwestTM
"We Have Nothing to Fear But Shear Itself"        /        "We're All Subducting In This Together"
           "Do not look back in anger, or forward in fear, but around in awareness."  -- James Thurber