October 25, 2023 — Kīlauea GPS campaign wraps up

In this photo, taken on October 3, 2023, near Kīlauea's coastline in Hawai‘i Volcanoes National Park, a GPS antenna is mounted on a fixed rod. A GPS receiver, housed in the yellow box, records the positions that can be compared with those from previous years to discern subtle patterns of ground deformation associated with volcanic activity. These data augment the permanent, continuously recording GPS instruments in HVO's monitoring network. USGS photo by A. Ellis.