Ari Tryggvason

Development of quantitative geophysical proxy indicators for urban underground space use: An analysis of Stockholm and its city plan

Alofe, Emmanuel; Bastani, Mehrdad; Tryggvason, Ari

Part of Tunnelling and Underground Space Technology, 2026

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Comments on the short communication: The number of natural disasters is zero: commentary to "Is the number of global natural disasters increasing?" by David Oliver Kasdan, Youngdal Son, and Hangul Lee Natural Hazards https://doi.org/10.1007/s11069-025-07245-9 (2025)

Roberts, Roland; Alimonti, Gianluca; Tryggvason, Ari; Mariani, Luigi

Part of Natural Hazards, p. 23423-23428, 2025

• DOI for Comments on the short communication: The number of natural disasters is zero: commentary to "Is the number of global natural disasters increasing?" by David Oliver Kasdan, Youngdal Son, and Hangul Lee Natural Hazards https://doi.org/10.1007/s11069-025-07245-9 (2025)
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Incompleteness of natural disaster data and its implications on the interpretation of trends

Joshi, Niranjan; Roberts, Roland; Tryggvason, Ari

Part of Environmental hazards, 2025

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Tomographic and volcanotectonic control on the 2021-2023 Fagradalsfjall eruptions, Iceland

Hobé, Alex; Bazargan, Mohsen; Selek, Burcu; Tryggvason, Ari et al.

Part of Scientific Reports, 2025

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Internal volcano-magmatic structure of Oraefajokull volcano, Iceland

Walsh, Braden; Tryggvason, Ari; Parks, Michelle M.; Mcgarvie, Dave et al.

Part of Communications Earth & Environment, 2025

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Development of quantitative geophysical proxy indicators for urban underground space use: An analysis of Stockholm and its city plan

Alofe, Emmanuel; Bastani, Mehrdad; Tryggvason, Ari

Part of Tunnelling and Underground Space Technology, 2026

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Comments on the short communication: The number of natural disasters is zero: commentary to "Is the number of global natural disasters increasing?" by David Oliver Kasdan, Youngdal Son, and Hangul Lee Natural Hazards https://doi.org/10.1007/s11069-025-07245-9 (2025)

Roberts, Roland; Alimonti, Gianluca; Tryggvason, Ari; Mariani, Luigi

Part of Natural Hazards, p. 23423-23428, 2025

• DOI for Comments on the short communication: The number of natural disasters is zero: commentary to "Is the number of global natural disasters increasing?" by David Oliver Kasdan, Youngdal Son, and Hangul Lee Natural Hazards https://doi.org/10.1007/s11069-025-07245-9 (2025)
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Incompleteness of natural disaster data and its implications on the interpretation of trends

Joshi, Niranjan; Roberts, Roland; Tryggvason, Ari

Part of Environmental hazards, 2025

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Tomographic and volcanotectonic control on the 2021-2023 Fagradalsfjall eruptions, Iceland

Hobé, Alex; Bazargan, Mohsen; Selek, Burcu; Tryggvason, Ari et al.

Part of Scientific Reports, 2025

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Internal volcano-magmatic structure of Oraefajokull volcano, Iceland

Walsh, Braden; Tryggvason, Ari; Parks, Michelle M.; Mcgarvie, Dave et al.

Part of Communications Earth & Environment, 2025

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SubCity: Planning for a sustainable subsurface in Stockholm

Kuchler, Magdalena; Craig-Thompson, Alexander; Alofe, Emmanuel; Tryggvason, Ari

Part of Tunnelling and Underground Space Technology, p. 105545, 2024

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Earthquake disaster fatality data: Temporally stable power-law behavior and effects of underreporting

Joshi, Niranjan; Roberts, Roland; Tryggvason, Ari; Lund, Björn

Part of Seismological Research Letters, 2024

• DOI for Earthquake disaster fatality data: Temporally stable power-law behavior and effects of underreporting

The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?

Troll, Valentin R.; Deegan, Frances; Thordarson, Thor; Tryggvason, Ari et al.

Part of Terra Nova, p. 447-456, 2024

• DOI for The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?
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Shear wave structure of southern Sweden from precise phase-velocity measurements of ambient-noise data

Sadeghisorkhani, Hamzeh; Gudmundsson, Ólafur; Li, Ka Lok; Tryggvason, Ari et al.

Part of Geophysical Journal International, p. 494-511, 2021

• DOI for Shear wave structure of southern Sweden from precise phase-velocity measurements of ambient-noise data

Local Earthquake Tomography in the Tjörnes Fracture Zone (North Iceland)

Abril, Claudia; Tryggvason, Ari; Gudmundsson, Ólafur; Steffen, Rebekka

Part of Journal of Geophysical Research - Solid Earth, 2021

• DOI for Local Earthquake Tomography in the Tjörnes Fracture Zone (North Iceland)
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2D and 3D MT in the central Skellefte Ore District, northern Sweden

García Juanatey, María de los Angeles; Hübert, Juliane; Tryggvason, Ari; Juhlin, Christopher et al.

Part of Tectonophysics, p. 124-138, 2019

• DOI for 2D and 3D MT in the central Skellefte Ore District, northern Sweden
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Processing automatic seismic event detections: an iterative sorting algorithm improving earthquake hypocentres using interevent cross-correlation

Wagner, Frederic; Tryggvason, Ari; Roberts, Roland; Gudmundsson, Ólafur

Part of Geophysical Journal International, p. 1268-1280, 2019

• DOI for Processing automatic seismic event detections: an iterative sorting algorithm improving earthquake hypocentres using interevent cross-correlation
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First-arrival tomography with fast sweeping method solving the factored eikonal equation

Huang, Guangnan; Luo, Songting; Tryggvason, Ari; Li, Hongxing et al.

Part of Exploration Geophysics, p. 144-158, 2019

• DOI for First-arrival tomography with fast sweeping method solving the factored eikonal equation

GSpecDisp: a Matlab GUI package for phase-velocity dispersion measurements from ambient-noise correlations

Sadeghisorkhani, Hamzeh; Gudmundsson, Ólafur; Tryggvason, Ari

Part of Computers & Geosciences, p. 41-53, 2018

• DOI for GSpecDisp: a Matlab GUI package for phase-velocity dispersion measurements from ambient-noise correlations

Why 3D seismic data are an asset for exploration and mine planning?: Velocity tomography of weakness zones in the Kevitsa Ni-Cu-PGE mine, northern Finland

Malehmir, Alireza; Tryggvason, Ari; Wijns, Chris; Koivisto, Emilia et al.

Part of Geophysics, 2018

• DOI for Why 3D seismic data are an asset for exploration and mine planning?: Velocity tomography of weakness zones in the Kevitsa Ni-Cu-PGE mine, northern Finland

The 2011 unrest at Katla volcano: Characterization and interpretation of the tremor sources

Sgattoni, Giulia; Gudmundsson, Ólafur; Einarsson, Pall; Lucchi, Federico et al.

Part of Journal of Volcanology and Geothermal Research, p. 63-78, 2017

• DOI for The 2011 unrest at Katla volcano: Characterization and interpretation of the tremor sources

Ambient-noise tomography of Katla volcano, south Iceland

Jeddi, Zeinab; Gudmundsson, Ólafur; Tryggvason, Ari

Part of Journal of Volcanology and Geothermal Research, p. 264-277, 2017

• DOI for Ambient-noise tomography of Katla volcano, south Iceland

A peculiar cluster of microearthquakes on the eastern flank of Katla volcano, southern Iceland

Jeddi, Zeinab; Sgattoni, Giulia; Gudmundsson, Ólafur; Tryggvason, Ari et al.

Part of Jökull, p. 1-16, 2017

Stress barriers controlling lateral migration of magma revealed by seismic tomography

Marti, J.; Villasenor, A.; Geyer, A.; Lopez, C. et al.

Part of Scientific Reports, 2017

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Automatic seismic event detection using migration and stacking: a performance and parameter study in Hengill, southwest Iceland

Wagner, Frederic; Tryggvason, Ari; Roberts, Roland G.; Lund, Björn et al.

Part of Geophysical Journal International, p. 1866-1877, 2017

• DOI for Automatic seismic event detection using migration and stacking: a performance and parameter study in Hengill, southwest Iceland

Velocity-measurement bias of the ambient noise method due to source directivity: A case study for the Swedish National Seismic Network

Sadeghisorkhani, Hamzeh; Gudmundsson, Ólafur; Roberts, Roland; Tryggvason, Ari

Part of Geophysical Journal International, p. 1648-1659, 2017

• DOI for Velocity-measurement bias of the ambient noise method due to source directivity: A case study for the Swedish National Seismic Network

Ambient noise tomography of Eyjafjallajokull volcano, Iceland

Benediktsdottir, Asdis; Gudmundsson, Ólafur; Brandsdottir, Bryndis; Tryggvason, Ari

Part of Journal of Volcanology and Geothermal Research, p. 250-263, 2017

• DOI for Ambient noise tomography of Eyjafjallajokull volcano, Iceland

Mapping the source distribution of microseisms using noise covariogram envelopes

Sadeghisorkhani, Hamzeh; Gudmundsson, Ólafur; Roberts, Roland; Tryggvason, Ari

Part of Geophysical Journal International, p. 1473-1491, 2016

• DOI for Mapping the source distribution of microseisms using noise covariogram envelopes

The Katla volcanic system imaged using local earthquakes recorded with a temporary seismic network

Jeddi, Zeinab; Tryggvason, Ari; Gudmundsson, Ólafur

Part of Journal of Geophysical Research - Solid Earth, p. 7230-7251, 2016

• DOI for The Katla volcanic system imaged using local earthquakes recorded with a temporary seismic network

Magma plumbing for the 2014–2015 Holuhraun eruption, Iceland

Geiger, Harri; Mattsson, Tobias; Deegan, Frances; Troll, Valentin et al.

Part of Geochemistry Geophysics Geosystems, p. 2953-2968, 2016

• DOI for Magma plumbing for the 2014–2015 Holuhraun eruption, Iceland

Focusing patterns of seismicity with relocation and collapsing

Li, Ka Lok; Gudmundsson, Ólafur; Tryggvason, Ari; Bödvarsson, Reynir et al.

Part of Journal of Seismology, p. 771-786, 2016

• DOI for Focusing patterns of seismicity with relocation and collapsing

Long-period seismic events with strikingly regular temporal patterns on Katla volcano’s south flank (Iceland)

Sgattoni, Giulia; Jeddi, Zeinab; Gudmundsson, Ólafur; Einarsson, Pall et al.

Part of Journal of Volcanology and Geothermal Research, p. 28-40, 2016

• DOI for Long-period seismic events with strikingly regular temporal patterns on Katla volcano’s south flank (Iceland)

Application of a fast and efficient algorithm to assess landslide-prone areas in sensitive clays in Sweden

Melchiorre, Caterina; Tryggvason, Ari

Part of Natural hazards and earth system sciences, p. 2703-2713, 2015

• DOI for Application of a fast and efficient algorithm to assess landslide-prone areas in sensitive clays in Sweden
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A fast and efficient algorithm to map prerequisites of landslides in sensitive clays based on detailed soil and topographical information

Tryggvason, Ari; Melchiorre, Caterina; Johansson, Kerstin

Part of Computers & Geosciences, p. 88-95, 2015

• DOI for A fast and efficient algorithm to map prerequisites of landslides in sensitive clays based on detailed soil and topographical information
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Microearthquakes illuminate the deep structure of the endglacial Parvie fault, northern Sweden

Lindblom, Eva; Lund, Björn; Tryggvason, Ari; Uski, Marja et al.

Part of Geophysical Journal International, p. 1704-1716, 2015

• DOI for Microearthquakes illuminate the deep structure of the endglacial Parvie fault, northern Sweden

Imaging the Kristineberg mining area with two perpendicular magnetotelluric profiles in the Skellefte Ore District, northern Sweden

García Juanatey, María de los Ángeles; Hübert, Juliane; Tryggavson, Ari; Pedersen, Laust B

Part of Geophysical Prospecting, p. 200-219, 2013

• DOI for Imaging the Kristineberg mining area with two perpendicular magnetotelluric profiles in the Skellefte Ore District, northern Sweden

The upper crustal 3-D resistivity structure of the Kristineberg area, Skellefte district, northern Sweden revealed by magnetotelluric data

Hübert, Juliane; García Juanatey, María de los Ángeles; Malehmir, Alireza; Tryggavson, Ari et al.

Part of Geophysical Journal International, p. 500-513, 2013

• DOI for The upper crustal 3-D resistivity structure of the Kristineberg area, Skellefte district, northern Sweden revealed by magnetotelluric data
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MT and reflection seismics in northwestern Skellefte Ore District, Sweden

García Juanatey, María de los Ángeles; Tryggavson, Ari; Juhlin, Christopher; Bergström, Ulf et al.

Part of Geophysics, 2013

• DOI for MT and reflection seismics in northwestern Skellefte Ore District, Sweden
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Velocity Tomography Imaging Method with Variable Grid spacing/Interval

Guangnan, Huang; Yang, Liu; Tryggvason, Ari; Guangyi, Hu et al.

Part of Oil Geophysical Prospecting, p. 379-389, 2013

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Cross-well seismic waveform tomography for monitoring CO2 injection: a case study from the Ketzin Site, Germany

Zhang, Fengjiao; Juhlin, Christopher; Cosma, Calin; Tryggvason, Ari et al.

Part of Geophysical Journal International, p. 629-646, 2012

• DOI for Cross-well seismic waveform tomography for monitoring CO2 injection: a case study from the Ketzin Site, Germany

3D constraints on a possible deep > 2.5 km massive sulphide mineralization from 2D crooked-line seismic reflection data in the Kristineberg mining area, northern Sweden

Malehmir, Alireza; Schmelzbach, Cedric; Bongajum, Emanuel; Bellefleur, Gilles et al.

Part of Tectonophysics, p. 223-240, 2009

• DOI for 3D constraints on a possible deep > 2.5 km massive sulphide mineralization from 2D crooked-line seismic reflection data in the Kristineberg mining area, northern Sweden

3D seismic traveltime tomography imaging of the shallow subsurface at the CO2SINK project site, Ketzin, Germany

Yordkayhun, Sawasdee; Tryggvason, Ari; Norden, Ben; Juhlin, Christopher et al.

Part of Geophysics, 2009

• DOI for 3D seismic traveltime tomography imaging of the shallow subsurface at the CO2SINK project site, Ketzin, Germany

A complex earthquake sequence captured by the continuous GPS network in SW Iceland

Hreinsdottir, S; Arnadottir, T; Decriem, J; Geirsson, H et al.

Part of Geophysical Research Letters, 2009

• DOI for A complex earthquake sequence captured by the continuous GPS network in SW Iceland

New Moho Map for onshore southern Norway

Stratford, Wanda; Thybo, Hans; Faleide, Inge; Olesen, Odleiv et al.

Part of Geophysical Journal International, p. 1755-1765, 2009

• DOI for New Moho Map for onshore southern Norway

The Krasnouralsky profile in the Middle Urals, Russia: a tomographic approach to vintage DSS data

Kashubin, Artem S.; Tryggvason, Ari; Juhlin, Christopher; Rybalka, A. V. et al.

Part of Tectonophysics, p. 249-263, 2009

• DOI for The Krasnouralsky profile in the Middle Urals, Russia: a tomographic approach to vintage DSS data

The Paleoproterozoic Kristineberg mining area, northern Sweden: Results from integrated 3D geophysical and geologic modeling, and implications for targeting ore deposits

Malehmir, Alireza; Thunehed, Hans; Tryggvason, Ari

Part of Geophysics, 2009

• DOI for The Paleoproterozoic Kristineberg mining area, northern Sweden: Results from integrated 3D geophysical and geologic modeling, and implications for targeting ore deposits

MT measurements in the western part of the Paleoproterozoic Skellefte Ore District, Northern Sweden: a contribution to an integrated geophysical study

Hübert, Juliane; Malehmir, Alireza; Smirnov, Maxim; Tryggvason, Ari et al.

Part of Tectonophysics, p. 493-502, 2009

• DOI for MT measurements in the western part of the Paleoproterozoic Skellefte Ore District, Northern Sweden: a contribution to an integrated geophysical study

Glacial long period seismic events at Katla volcano, Iceland

Jónsdóttir, Kristín; Roberts, Roland; Pohjola, Veijo; Lund, Björn et al.

Part of Geophysical Research Letters, 2009

• DOI for Glacial long period seismic events at Katla volcano, Iceland

Traveltime tomographic inversion with simultaneous static corrections: Well worth the effort

Tryggvason, Ari; Schmelzbach, C; Juhlin, Christopher

Part of Geophysics, 2009

• DOI for Traveltime tomographic inversion with simultaneous static corrections: Well worth the effort

Joint inversion of crosshole radar and seismic traveltimes acquired at the South Oyster Bacterial Transport Site

Linde, Niklas; Tryggvason, Ari; Peterson, John E.; Hubbard, Susan S.

Part of Geophysics, 2008

• DOI for Joint inversion of crosshole radar and seismic traveltimes acquired at the South Oyster Bacterial Transport Site

Mountain building processes during continent-continent collision in the Uralides

Brown, D.; Juhlin, Christopher; Ayala, C.; Tryggvason, Ari et al.

Part of Earth-Science Reviews, p. 177-195, 2008

• DOI for Mountain building processes during continent-continent collision in the Uralides

Cross-profile acquisition and cross-dip analysis for extracting 3D information from 2D surveys, a case study from the western Skellefte District, northern Sweden

Rodriguez-Tablante, Johiris; Tryggvason, Ari; Malehmir, Alireza; Juhlin, Christopher et al.

Part of Journal of Applied Geophysics, p. 1-12, 2007

• DOI for Cross-profile acquisition and cross-dip analysis for extracting 3D information from 2D surveys, a case study from the western Skellefte District, northern Sweden

Regional structural profiles in the western part of the Palaeoproterozoic Skellefte Ore District, northern Sweden

Malehmir, Alireza; Tryggvason, Ari; Lickorish, Henry; Weihed, Pär

Part of Precambrian Research, p. 1-18, 2007

• DOI for Regional structural profiles in the western part of the Palaeoproterozoic Skellefte Ore District, northern Sweden

Habits of a glacier-covered volcano: Seismicity patterns and velocity structure of Katla volcano, Iceland

Jónsdóttir, Kristín; Tryggvason, Ari; Roberts, Roland; Lund, Björn et al.

Part of Annals of Glaciology, p. 169-177, 2007

• DOI for Habits of a glacier-covered volcano: Seismicity patterns and velocity structure of Katla volcano, Iceland

Seismic imaging and potential field modeling to delineate structures hosting VHMS deposits in the Skellefte Ore District, northern Sweden

Malehmir, Alireza; Tryggvason, Ari; Juhlin, Christopher; Rodriguez-Tablante, Johiris et al.

Part of Tectonophysics, p. 319-334, 2006

• DOI for Seismic imaging and potential field modeling to delineate structures hosting VHMS deposits in the Skellefte Ore District, northern Sweden

Reflection Seismic Investigation in the Western Part of the Paleoproterozoic VHMS-Bearing Skellefte District, Northern Sweden: Reflection Seismic Investigation in the Western Part of the Paleoproterozoic VHMS-Bearing Skellefte District, Northern Sweden

Tryggvason, Ari; Malehmir, Alireza; Rodrigues-Tablante, Johiris; Juhlin, Christopher et al.

Part of Economic Geology, p. 1039-1054, 2006

Structural architecture of the Southern and Middle Urals foreland from reflection seismic profiles

Brown, Dennis; Juhlin, Christopher; Tryggvason, Ari; Friberg, Magnus et al.

Part of Tectonics, p. 1002, 2006

Comment on

Yao, Z.S.; Roberts, R.G; Tryggvason, A

Part of Geophysical Journal International, p. 307-314, 2001

The Crustal Architecture of the Southern and Middle Urals from the URSEIS, ESRU, and Alapaev Reflection Seismic Profiles

Brown, D; Juhlin, C; Tryggvason, A; Steer, D et al.

Part of Orogenic Processes in the Paleozoic Uralides, p. 33-48, American Geophysical Union, 2002

Imaging the 2010-2011 Inflationary Source at Krysuvik, SW Iceland, Using Time-Dependent Vp/Vs Tomography

Hobe, Alex; Gudmundsson, Ólafur; Tryggvason, Ari; The SIL Seismological Group, -

Part of World Geothermal Congress 2020+1, 2021

Seismicity Patterns Due to Magma Intrusions Underneath Geothermal Power Plants

Hobe, Alex; Geirsson, Halldor; Tryggvason, Ari; Gudmundsson, Ólafur et al.

Part of World Geothermal Congress 2020+1, 2021

Dike-Segment Propagation, Arrest, and Eruption at Fagradalsfjall, Iceland

Gudmundsson, Agust; Bazargan, Mohsen; Hobé, Alex; Selek, Burcu et al.

2021

• DOI for Dike-Segment Propagation, Arrest, and Eruption at Fagradalsfjall, Iceland
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Using Seismicity and Tomographic Imaging to Infer the Location and Rupture of the Reservoir that Supplies magma to the 2021 Eruption at Fagradalsfjall, Iceland

Hobe, Alex; Selek, Burcu; Bazargan, Mohsen; Gudmundsson, Agust et al.

2021

• DOI for Using Seismicity and Tomographic Imaging to Infer the Location and Rupture of the Reservoir that Supplies magma to the 2021 Eruption at Fagradalsfjall, Iceland
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Why 3D seismic data are an asset for both exploration and mine planning? Example of Kevitsa Ni-Cu-PGE, Finland

Malehmor, Alireza; Tryggvason, Ari; Wijns, Chris; Koivisto, Emilia et al.

Part of Lithosphere 2016, p. 83-86, 2016

• Download full text (pdf) of Why 3D seismic data are an asset for both exploration and mine planning? Example of Kevitsa Ni-Cu-PGE, Finland

3D Traveltime Tomography and Reflection Imaging for Mine Planning and Exploration in the Kevitsa Ni-Cu-PGE Mine, Finland

Malehmir, Alireza; Tryggvason, Ari; Wijns, Chris; Lindqvist, T. et al.

2016

• DOI for 3D Traveltime Tomography and Reflection Imaging for Mine Planning and Exploration in the Kevitsa Ni-Cu-PGE Mine, Finland

Magnetotelluric measurements in the Skellefte ore district, northern Sweden

García Juanatey, María de los Ángeles; Hübert, Juliane; Tryggavson, Ari; Juhlin, Christopher et al.

p. 138-141, 2013

Integrated MagnetoTelluric and seismic reflection study: Skellefte Ore District, northern Sweden

Garcia Juanatey, Maria de los Angeles; Hübert, Juliane; Juhlin, Christopher; Malehmir, Alireza et al.

p. 1247-1251, 2011

• DOI for Integrated MagnetoTelluric and seismic reflection study: Skellefte Ore District, northern Sweden
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Seismic imaging in the Skellfte ore district, northern Sweden: Seismic imaging in the Skellfte ore district, northern Sweden

Malehmir, Alireza; Tryggvason, Ari; Juhlin, Christopher; Rodriguez-Tablante, Johiris et al.

Part of 20th World Mining Congress, p. 399-404, 2005

Double-difference relocation and local-earthquake tomography of the Vp, Vs, and Vp/Vs structure in Hengill, SW Iceland

Wagner, Frederic; Tryggvason, Ari; Gudmundsson, Ólafur

Space and time variations in crustal stress using microearthquake source information from South Iceland Seismic zone

Bödvarsson, Reynir; Lund, Björn; Tryggvason, Ari

2006

Seismologisk studie relaterad till Citybanan i Stockholm

Reynir, Bödvarsson; Björn, Lund; Roland, Roberts; Ragnar, Slunga et al.

2004

Development of routine multi-event evaluation and interpret improved locations in terms of earthquake foci migration and other detailed behaviour.

Bödvarsson, Reynir; Slunga, Ragnar; Lund, Björn; Tryggvason, Ari

2003