Post-Seismic Motion of Gilcreek Geodetic Sites Following the November, 2002 Denali Earthquake

摘要

We have detected post-seismic motion of the Gilcreek observatory in Fairbanks, Alaska after the 2002 Denali earthquake from an analysis of VLBI and GPS data recorded at the site in the 12-month period following the event. The motion is non-linear, indicating that either a relaxation process or afterslip on the fault is occuring. The co-seismic estimate of displacement from VLBI measurements agrees well with those from GPS analysis in all components.