The fluid and solid mechanics of volcanoes, as illuminated by recent activity at Kilauea, Hawaii
Date: Thursday, February 14, 2019
Location: 100 Willamette Hall
Speaker: Leif Karlstrom, UO, Department of Earth Sciences
Abstract: Volcanic eruptions represent the final stage of ascent for magma generated deep in the Earth’s mantle. Because this magma ascent occurs over a broad range of scales (>12 orders of magnitude in space and time), much of which is outside the realm of direct observation, fundamental unanswered questions remain about how volcanoes work. Kilauea volcano, Hawaii, is a laboratory for studying these questions: many decades of research and one of the best geophysical sensor networks on Earth provide an outstanding platform for discovery and hypothesis testing. I will describe ongoing work to integrate physics-based models for magma ascent and storage with geophysical observations of volcanic activity at Kilauea over the past decade, including developments related to the explosive summit eruptions that occurred in May 2018. By integrating fluid and solid mechanics models with rigorous data inversion techniques, my group is working to place new constraints on volcanic processes from the millimeter-scale of bubble dynamics to the kilometer-scale of magma reservoirs and conduits.
Host: John Toner
All attendees are invited to attend a colloquium reception in the Willamette Hall, Paul Olum atrium at 3:40pm.