March 25, 2024 — Annual Kīlauea gravity survey

At each gravity survey location, a kinematic GPS station is deployed nearby for precise location data, used to correct for the variety of factors that influence gravity results—especially vertical deformation. This survey location is located near the CALS continuous GPS site on the portion of Kīlauea caldera that collapsed in 2018. The CALS station has not been covered by lava during recent eruptions within Kīlauea caldera, and it is a part of HVO's telemetered monitoring network. Photo by E. van Dalfsen.