Halldór Geirsson

Halldór Geirsson is an Associate Professor of Geophysics at the University of Iceland's Faculty of Earth Sciences, where he specializes in crustal deformation and tectonic processes. After completing his BSc and MSc in Geophysics from the University of Iceland and PhD from Pennsylvania State University in 2014, he has established himself as a leading expert in geodetic research. His career includes a decade of experience at the Icelandic Meteorological Office, where he operated the Icelandic continuous GPS network. His research focuses on understanding volcanic and tectonic Earth processes, particularly magma accumulation, eruptions, earthquakes, and plate boundary deformation. Using advanced geodetic methods including GNSS, InSAR, tilt, and borehole strain measurements, he has made significant contributions to the field, with over 3,900 citations of his published works. His notable research includes studies on volcanic plume height correlation with magma pressure changes at Grímsvötn Volcano, climate effects on volcanism in Iceland, and the relationship between glacial rebound and plate spreading. Currently, he continues to advance the understanding of crustal deformation and geodynamics through his work at the University of Iceland, where he combines multiple data sources including seismic, gas, and geochemistry observations to study Earth processes.