Current Research in EEPS Seminar: Ingrid Johanson – Hawaiian Volcano Observatory
Integrating diverse geodetic data to understand the 2018 Kīlauea eruption and earthquake sequence.
The 2018 eruption and earthquake sequence at Kīlauea Volcano produced deformation throughout the volcano and is unprecedented in the last two centuries of its history. After the major part of the eruption finished in early August, 35.5 km2 of land had been inundated by lava, Kilauea’s summit had dropped over 500 meters at its deepest point, and the island had been shaken by a M6.9 earthquake on May 4. Geodetic data was critical to understanding the entire eruption and earthquake sequence. Diverse methods, including tiltmeters, real-time GPS, InSAR, photogrammetry, and drone-based DEMs, each provided unique information and were critical for on-the-fly analyses during the event response. This talk will include an overview of the 2018 eruption from a geodetic perspective, as well as preliminary modeling results.