History for USGS Fact Sheet 2006-3050 
Earthquake Information Products and Tools from the Advanced National Seismic System (ANSS)

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First posted April 7, 2006

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Revised June 18, 2009

Four URLs on the second page of the Fact Sheet were changed.  
The first version was mistakenly referred to the publication as 
a General Information Product instead of as a Fact Sheet.
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