Campaign GNSS measurements on the Island of Hawai`i collected by the Hawaiian Volcano Observatory in 2025

This release includes data collected during campaign GNSS surveys at Kīlauea and Mauna Loa volcanoes on the Island of Hawai`i in 2025. It includes data from a total of 46 sites occupied from January 1 to August 15, 2025. For each site, we include its measured raw data in daily files, Receiver INdependent EXchange (RINEX) files for each day, field log sheet(s), and associated metadata information. The authors thank USGS Hawaiian Volcano Observatory staff, volunteers, and collaborators for helping collect these data. Note: No additional campaign measurements are planned for 2025, so the 2025 GNSS campaign data for the Island of Hawai`i are being released early due to staffing changes. Data from semi-permanent GNSS sites (sites 77FL, 109Y, MANU, OVRL, and PUL2) for January 01, 2025 through December 31, 2025 will be released separately in 2026.