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NGS Updates Positioning Coordinates after Puerto Rico Earthquake

Friday, February 7, 2020

NGS monitors a national network of Continuously Operating Reference Stations (CORS) that ultimately feeds into the International Terrestrial Reference Frame, which provides coordinates for the world's navigation systems. After an earthquake in Puerto Rico in early January 2020, NGS noticed a shift in the position of several CORS. Station PRGY, the station closest to the earthquake, had moved about 5.6 centimeters northwest. NGS was able to quickly update the positions of the Puerto Rico reference stations most affected by the earthquake and make the information available online for users to access more accurate data.

For more information, contact: Theresa Damiani