Ólafur Gudmundsson
Professor at Department of Earth Sciences; Geophysics
- Telephone:
- +46 18 471 27 88
- E-mail:
- Olafur.Gudmundsson@geo.uu.se
- Visiting address:
- Geocentrum, Villavägen 16
752 36 Uppsala - Postal address:
- Villavägen 16
752 36 UPPSALA
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Short presentation
I am interested in Earth structure and what it can tell us about processes such as tectonics and volcanism, but also on a smaller scale where it can provide valuable information on various reservoirs. I work with seismic-wave propagation and the distribution of elastic and anelastic properties inside Earth (tomography) as well as detailed location of their sources (earthquakes and tremor) with some emphasis on uncertainty estimation.
Keywords
- ambient-noise tomography
- lithospheric structure
- microseismicity
- surface waves
- volcanic tremor
Biography
2022 - present: Professor, Head of Program, Department of Earth Sciences, Uppsala University, Sweden
2012 - 2022: Professor, Department of Earth Sciences, Uppsala University, Sweden
2009 - 2012: Guest Professor, Department of Earth Sciences, Uppsala University, Sweden
2008 - 2012: Professor, Reykjavik University, Reykjavik, Iceland
2005 - 2008: Professor, department Chair, Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland
2003 - 2005: Lecturer, Niels-Bohr Institute, Copenhagen University, Denmark
1999 - 2003: Senior Researcher, Danish Lithosphere Centre, Copenhagen, Denmark
1994 - 1999: Research Fellow, Research School of Earth Sciences, ANU, Canberra Australia
1991 - 1994: Postdoctoral Fellow, Research School of Earth Sciences, ANU, Canberra Australia
1989 - 1991: Researcher, University of Iceland Science Institute, Reykjavik, Iceland
1984 - 1989: PhD student, California Institute of Technology, Pasadena, California, USA
Publications
Recent publications
- Volcanic tremor of the 2010 Eyjafjallajökull eruption (2022)
- Hydrothermal fluid flow triggered by an earthquake in Iceland (2022)
- A shear-wave velocity model for the Scandinavian lithosphere from Rayleigh waves and ambient noise - Implications for the origin of the topography of the Scandes mountain range (2022)
- Local Earthquake Tomography in the Tjörnes Fracture Zone (North Iceland) (2021)
- Seismicity Patterns Due to Magma Intrusions Underneath Geothermal Power Plants (2021)
All publications
Articles
- Volcanic tremor of the 2010 Eyjafjallajökull eruption (2022)
- Hydrothermal fluid flow triggered by an earthquake in Iceland (2022)
- A shear-wave velocity model for the Scandinavian lithosphere from Rayleigh waves and ambient noise - Implications for the origin of the topography of the Scandes mountain range (2022)
- Local Earthquake Tomography in the Tjörnes Fracture Zone (North Iceland) (2021)
- Anomalous azimuthal variations with 360 degrees periodicity of Rayleigh phase velocities observed in Scandinavia (2021)
- Shear wave structure of southern Sweden from precise phase-velocity measurements of ambient-noise data (2021)
- ScanArray (2021)
- Magma "bright spots" mapped beneath Krafla, Iceland, using RVSP imaging of reflected waves from microearthquakes (2020)
- A Probabilistic Tremor Location Method (2020)
- Seismicity of the Hengill area, SW Iceland (2019)
- The 2011 unrest at Katla volcano (2019)
- Processing automatic seismic event detections (2019)
- Relocating earthquakes with empirical traveltimes (2018)
- GSpecDisp: a Matlab GUI package for phase-velocity dispersion measurements from ambient-noise correlations (2018)
- Ambient noise tomography of Eyjafjallajokull volcano, Iceland (2017)
- Jeddi, Gudmundsson, Tryggvason, 2017. Ambient-noise tomography of Katla volcano, south Iceland, J. Volc. Geoth. Res. 347, 264-277. (2017)
- Sgattoni, Giulia, Gudmundsson, Olafur, Einarsson, Pall, Lucchi, Federico, Li, Ka Lok, Sadeghisorkhani, Hamzeh, Roberts, Roland, Tryggvason, A, 2017. The 2011 unrest at Katla volcano: characterization and interpretation of the tremor sources, J. Volc. Geoth. Res. 338, 63-78. (2017)
- Jeddi, Zeinab, Gudmundsson, Olafur, Tryggvason, Ari, 2017. Ambient-noise tomography of Katla volcano, south Iceland, J. Volc. Geoth. Res. 347, 264-277. (2017)
- Jeddi, Zeinab, Sgattoni, Giulia, Gudmundsson, Olafur, Tryggvason, Ari, Lund, Björn, 2017. A peculiar cluster of microearthquakes on the eastern flank of Katla volcano, southern Iceland, Jökull 67, 1-16. (2017)
- Ambient-noise tomography of Katla volcano, south Iceland (2017)
- A peculiar cluster of microearthquakes on the eastern flank of Katla volcano, southern Iceland (2017)
- Locating tremor using stacked products of correlations (2017)
- A double-correlation tremor-location method (2017)
- Velocity-measurement bias of the ambient noise method due to source directivity (2017)
- The 2011 unrest at Katla volcano (2017)
- Automatic seismic event detection using migration and stacking (2017)
- Magma plumbing for the 2014–2015 Holuhraun eruption, Iceland (2016)
- The Katla volcanic system imaged using local earthquakes recorded with a temporary seismic network (2016)
- Focusing patterns of seismicity with relocation and collapsing (2016)
- Mapping the source distribution of microseisms using noise covariogram envelopes (2016)
- Joint relative location of earthquakes without a pre-defined velocity model (2016)
- Long-period seismic events with strikingly regular temporal patterns on Katla volcano’s south flank (Iceland) (2016)
- Reconstruction of subsurface structure from ambient seismic noise (2012)
- The May 29(th) 2008 earthquake aftershock sequence within the South Iceland Seismic Zone (2010)
- Geothermal noise at Olkelduhals, SW Iceland (2010)
- Earthquakes and pre-earthquake processes, special issue (2010)
- Double-difference relocation and local-earthquake tomography of the Vp, Vs, and Vp/Vs structure in Hengill, SW Iceland