R
Ragnar Stefánsson
Researcher at University of Akureyri
Publications - 53
Citations - 2737
Ragnar Stefánsson is an academic researcher from University of Akureyri. The author has contributed to research in topics: Earthquake prediction & Mantle plume. The author has an hindex of 27, co-authored 53 publications receiving 2622 citations. Previous affiliations of Ragnar Stefánsson include Uppsala University & Met Office.
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Earthquake prediction research in the South Iceland seismic zone and the SIL project
Ragnar Stefánsson,Reynir Böđvarsson,Ragnar Slunga,Páll Einarsson,Steinunn S. Jakobsdóttir,Hilmar Bungum,Søren Gregersen,Jens Havskov,Jörgen Hjelme,H. Korhonen +9 more
TL;DR: The South Iceland Lowland (SIL) project as discussed by the authors is a concerted effort of the Nordic countries toward earthquake prediction research in the South Iceland seismic zone (SISZ), where most destructive earthquakes in the history of iceland have occurred.
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Imaging the mantle beneath Iceland using integrated seismological techniques
Richard M. Allen,Richard M. Allen,Guust Nolet,W. Jason Morgan,Kristín Vogfjörd,Bergur H. Bergsson,Pálmi Erlendsson,Gillian R. Foulger,Steinunn S. Jakobsdóttir,Bruce R. Julian,Matthew J Pritchard,S. Ragnarsson,Ragnar Stefánsson +12 more
TL;DR: In this paper, the authors used a combination of body wave and surface wave data sets to reveal the mantle plume and plume head, and presented a tomographic image of the mantle structure beneath Iceland to 400 km depth.
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Volcano geodesy and magma dynamics in Iceland
Erik Sturkell,Páll Einarsson,Freysteinn Sigmundsson,Halldór Geirsson,Halldór Ólafsson,Rikke Pedersen,Elske de Zeeuw-van Dalfsen,Alan T. Linde,Selwyn Sacks,Ragnar Stefánsson +9 more
TL;DR: A review of the achievements of volcano geodesy in Iceland during the last 15 years can be found in this article, where a variety of geodetic techniques, including leveling, electronic distance measurements, campaign and continuous Global Positioning System (GPS) geodesys, and interferometric analysis of synthetic aperture radar images (InSAR).
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Plume-driven plumbing and crustal formation in Iceland
Richard M. Allen,Richard M. Allen,Guust Nolet,W. Jason Morgan,Kristín Vogfjörd,Meredith Nettles,Göran Ekström,Bergur H. Bergsson,Pálmi Erlendsson,Gillian R. Foulger,Steinunn S. Jakobsdóttir,Bruce R. Julian,Matthew J Pritchard,S. Ragnarsson,Ragnar Stefánsson +14 more
TL;DR: In this paper, the authors derived a 3D model of the crustal S velocity model and Moho map for Iceland based on a combination of surface wave and body wave constraints.
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Seismic tomography shows that upwelling beneath Iceland is confined to the upper mantle
Gillian R. Foulger,Matthew J Pritchard,Bruce R. Julian,John R. Evans,Richard M. Allen,Guust Nolet,W. J. Morgan,Bergur H. Bergsson,Pálmi Erlendsson,S. Jakobsdottir,S. Ragnarsson,Ragnar Stefánsson,Kristín Vogfjörd +12 more
TL;DR: In this paper, the authors reported the results of the highest-resolution teleseismic tomography study yet performed of the upper mantle beneath Iceland, using data gathered by the Iceland Hotspot Project, which operated a 35-station network of continuously recording, digital, broadband seismometers over all of Iceland 1996-1998.