The following information obtained from UNAVCO's online DOI system: (https://www.unavco.org/data/doi/search/search.html) SCIGN USGS GPS Network - VTIS-Marine Exchange P.S. Start: 09-Dec-1998 End: 14-Nov-2022 Hudnut, Kenneth, King, Nancy, Aspiotes, Aris G., Borsa, Adrian A., Determan, Daniel N., Galetzka, John E., Stark, Keith F., 2006, SCIGN USGS GPS Network - VTIS-Marine Exchange P.S., UNAVCO, GPS/GNSS Observations Dataset, https://doi.org/10.7283/T5K35RWS