Relative Motion between St. Croix and the Puerto Rico-Northern Virgin Islands Block Derived from Continuous GPS Observations (1995–2014)

<div>Comparisons of daily positions of VIKH (St. Croix) derived from the GIPSY PPP solutions and the GAMIT double-difference (DD) solutions (VITH fixed). Dark dots represent the PPP solutions which referred to the stable local reference frame SPRNVIRF. Cyan dots represent the DD solutions related to a single fixed station on the St. Thomas island (VITH). The distance between VITH and VIKH is 71 km.</div>

International Journal of Geophysics

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Figure 4

Figure 4: Relative Motion between St. Croix and the Puerto Rico-Northern Virgin Islands Block Derived from Continuous GPS Observations (1995–2014) 