New deep braced GPS monument installed in Pacific Northwest

Overview

March 15, 2007

A new deep braced GPS monument was completed on February 14th at the Newport Municipal Airport in western Oregon to replace the existing GPS monument (NEWP) that had been installed in June of 1996, by hand digging down to a meter, and then pounding rebar to approximately 1/2 meter. During a visit in May of 2006, it was found that the monument was deeply rusted. This location is an important site for monitoring activity related to the Cascadia Subduction zone. Both the old station (NEWP) and P367 have been running simultaneously since February 15th of this month.