Mechanics of slow earthquake phenomena: an Integrated perspective from the Composition, geometry, And rheology of plate boundary faults

Afterslip Moment Scaling and Variability From a Global Compilation of Estimates

Author(s): R. M. Churchill, M. J. Werner, J. Biggs, Å. Fagereng
Published in: Journal of Geophysical Research: Solid Earth, Issue 127, 2022, Page(s) e2021JB023897, ISSN 2169-9313
Publisher: American Geophysical Union
DOI: 10.1029/2021jb023897

Is complex fault zone behaviour a reflection of rheological heterogeneity?

Author(s): Å. Fagereng, A. Beall
Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Issue 379/2193, 2021, Page(s) 20190421, ISSN 1364-503X
Publisher: Royal Society of London
DOI: 10.1098/rsta.2019.0421

Sources and Effects of Fluids in Continental Retrograde Shear Zones: Insights from the Kuckaus Mylonite Zone, Namibia

Author(s): C. A. Stenvall, A. Fagereng, J. F. A. Diener, C. Harris, P. E. Janney
Published in: Geofluids, Issue 2020, 2020, Page(s) 1-21, ISSN 1468-8115
Publisher: Blackwell Publishing Inc.
DOI: 10.1155/2020/3023268

Mixed Brittle and Viscous Strain Localization in Pelagic Sediments Seaward of the Hikurangi Margin, New Zealand

Author(s): Harold Leah, Åke Fagereng, Francesca Meneghini, Julia K. Morgan, Heather M. Savage, Maomao Wang, Rebecca Bell, Matt J. Ikari
Published in: Tectonics, Issue 39/8, 2020, Page(s) e2019TC005965, ISSN 0278-7407
Publisher: American Geophysical Union
DOI: 10.1029/2019tc005965

Heterogeneous Subgreenschist Deformation in an Exhumed Sediment-Poor Mélange

Author(s): H. Leah, Å. Fagereng, N. Groome, D. Buchs, A. Eijsink, A. Niemeijer
Published in: Journal of Geophysical Research: Solid Earth, Issue 127, 2022, Page(s) e2022JB024353, ISSN 2169-9313
Publisher: American Geophysical Union
DOI: 10.1029/2022jb024353

Influence of Subduction Zone Dynamics on Interface Shear Stress and Potential Relationship With Seismogenic Behavior

Author(s): Adam Beall, Åke Fagereng, J. Huw Davies, Fanny Garel, D. Rhodri Davies
Published in: Geochemistry, Geophysics, Geosystems, Issue 22/2, 2021, Page(s) e2020GC009267, ISSN 1525-2027
Publisher: Geochemical Society
DOI: 10.1029/2020gc009267

Shear Zone Development in Serpentinized Mantle: Implications for the Strength of Oceanic Transform Faults

Author(s): Sophie Cox, Åke Fagereng, Christopher J. MacLeod
Published in: Journal of Geophysical Research: Solid Earth, Issue 126/5, 2021, Page(s) e2020JB020763, ISSN 2169-9313
Publisher: American Geophysical Union
DOI: 10.1029/2020jb020763

Variable In Situ Stress Orientations Across the Northern Hikurangi Subduction Margin

Author(s): D. D. McNamara, E. Behboudi, L. Wallace, D. Saffer, A. E. Cook, A. Fagereng, M. Paganoni, Hung‐Yu Wu, G. Kim, H. Lee, H. M. Savage, P. Barnes, I. Pecher, L. J. LeVay, K. E. Petronotis
Published in: Geophysical Research Letters, Issue 48/5, 2021, Page(s) e2020GL091707, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2020gl091707

Megathrust shear modulated by Albite Metasomatism in subduction mélanges

Author(s): Kohtaro Ujiie; Kazuya Noro; Norio Shigematsu; Åke Fagereng; Naoki Nishiyama; Christopher J. Tulley; Haruna Masuyama; Yasushi Mori; Hiroyuki Kagi
Published in: Geochemistry, Geophysics, Geosystems, Issue 23, 2022, Page(s) e2022GC010569, ISSN 1525-2027
Publisher: Geochemical Society
DOI: 10.1029/2022gc010569

Asymmetric Brittle Deformation at the Pāpaku Fault, Hikurangi Subduction Margin, NZ, IODP Expedition 375

Author(s): Heather M. Savage, Srisharan Shreedharan, Åke Fagereng, Julia K. Morgan, Francesca Meneghini, Maomao Wang, David D. McNamara, Laura M. Wallace, Demian M. Saffer, Philip M. Barnes, Katerina E. Petronotis, Leah J. LeVay
Published in: Geochemistry, Geophysics, Geosystems, Issue 22/8, 2021, Page(s) e2021GC009662, ISSN 1525-2027
Publisher: Geochemical Society
DOI: 10.1029/2021gc009662

Frictional Characteristics of Oceanic Transform Faults: Progressive Deformation and Alteration Controls Seismic Style

Author(s): Matt Ikari; Ake Fagereng; Christopher MacLeod; Sophie Cox
Published in: Geophysical Research Letters, Issue 24, 2021, Page(s) e2021GL096292, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2021gl096292

Linking Earthquake Magnitude-Frequency Statistics and Stress in Visco-Frictional Fault Zone Models

Author(s): Adam Beall, Martijn van den Ende, Jean-Paul Ampuero, Fabio A. Capitanio, Åke Fagereng
Published in: Geophysical Research Letters, Issue 49, 2022, Page(s) e2022GL099247, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2022gl099247

Low‐Temperature Frictional Characteristics of Chlorite‐Epidote‐Amphibole Assemblages: Implications for Strength and Seismic Style of Retrograde Fault Zones

Author(s): Åke Fagereng, Matt J. Ikari
Published in: Journal of Geophysical Research: Solid Earth, Issue 125/4, 2020, Page(s) e2020JB019487, ISSN 2169-9313
Publisher: American Geophysical Union
DOI: 10.1029/2020jb019487

Embrittlement within viscous shear zones across the base of the subduction thrust seismogenic zone

Author(s): C. J. Tulley; Å. Fagereng; K. Ujiie; J. F. A. Diener; C. Harris
Published in: Geochemistry, Geophysics, Geosystems, Issue 23, 2022, Page(s) e2021GC010208, ISSN 1525-2027
Publisher: Geochemical Society
DOI: 10.1029/2021gc010208

Rheology of Naturally Deformed Antigorite Serpentinite: Strain and Strain-Rate Dependence at Mantle-Wedge Conditions

Author(s): C. J. Tulley, Å. Fagereng, K. Ujiie, S. Piazolo, M. S. Tarling, Y. Mori
Published in: Geophysical Research Letters, Issue 49, 2022, Page(s) e2022GL098945, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2022gl098945

Controls on Early-Rift Geometry: New Perspectives From the Bilila-Mtakataka Fault, Malawi

Author(s): M. Hodge, Å. Fagereng, J. Biggs, H. Mdala
Published in: Geophysical Research Letters, Issue 45/9, 2018, Page(s) 3896-3905, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2018gl077343

Quartz vein formation by local dehydration embrittlement along the deep, tremorgenic subduction thrust interface

Author(s): Åke Fagereng, Johann F.A. Diener, Francesca Meneghini, Chris Harris, Ada Kvadsheim
Published in: Geology, Issue 46/1, 2017, Page(s) 67-70, ISSN 0091-7613
Publisher: Geological Society of America
DOI: 10.1130/G39649.1

An Explanation of Episodic Tremor and Slow Slip Constrained by Crack-Seal Veins and Viscous Shear in Subduction Mélange

Author(s): Kohtaro Ujiie, Hanae Saishu, Åke Fagereng, Naoki Nishiyama, Makoto Otsubo, Haruna Masuyama, Hiroyuki Kagi
Published in: Geophysical Research Letters, Issue 45/11, 2018, Page(s) 5371-5379, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2018GL078374

New perspectives on ‘geological strain rates’ calculated from both naturally deformed and actively deforming rocks

Author(s): Åke Fagereng, Juliet Biggs
Published in: Journal of Structural Geology, Issue 125, 2019, Page(s) 100-110, ISSN 0191-8141
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.jsg.2018.10.004

Strength of Strained Two‐Phase Mixtures: Application to Rapid Creep and Stress Amplification in Subduction Zone Mélange

Author(s): Adam Beall, Åke Fagereng, Susan Ellis
Published in: Geophysical Research Letters, Issue 46/1, 2019, Page(s) 169-178, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2018gl081252

The contemporary force balance in a wide accretionary wedge: numerical models of the southcentral Hikurangi margin of New Zealand

Author(s): Susan Ellis, Francesca Ghisetti, Philip M Barnes, Carolyn Boulton, Åke Fagereng, Susanne Buiter
Published in: Geophysical Journal International, Issue 219/2, 2019, Page(s) 776-795, ISSN 0956-540X
Publisher: Geological Society by Blackwell Scientific
DOI: 10.1093/gji/ggz317

Lower crustal earthquakes in the East African Rift System: Insights from frictional properties of rock samples from the Malawi rift

Author(s): Nina Hellebrekers, André R. Niemeijer, Åke Fagereng, Blackwell Manda, Richard L.S. Mvula
Published in: Tectonophysics, Issue 767, 2019, Page(s) 228167, ISSN 0040-1951
Publisher: Elsevier BV
DOI: 10.1016/j.tecto.2019.228167

Weaker Than Weakest: On the Strength of Shear Zones

Author(s): Christian A. Stenvall, Åke Fagereng, Johann F. A. Diener
Published in: Geophysical Research Letters, Issue 46/13, 2019, Page(s) 7404-7413, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2019gl083388

Mixed deformation styles observed on a shallow subduction thrust, Hikurangi margin, New Zealand

Author(s): Å. Fagereng, H.M. Savage, J.K. Morgan, M. Wang, F. Meneghini, P.M. Barnes, R. Bell, H. Kitajima, D.D. McNamara, D.M. Saffer, L.M. Wallace, K. Petronotis, L. LeVay
Published in: Geology, Issue 47/9, 2019, Page(s) 872-876, ISSN 0091-7613
Publisher: Geological Society of America
DOI: 10.1130/g46367.1

Fracture and Weakening of Jammed Subduction Shear Zones, Leading to the Generation of Slow Slip Events

Author(s): Adam Beall, Åke Fagereng, Susan Ellis
Published in: Geochemistry, Geophysics, Geosystems, Issue 20/11, 2019, Page(s) 4869-4884, ISSN 1525-2027
Publisher: Geochemical Society
DOI: 10.1029/2019gc008481

Slow slip source characterized by lithological and geometric heterogeneity

Author(s): Philip M. Barnes, Laura M. Wallace, Demian M. Saffer, Rebecca E. Bell, Michael B. Underwood, Ake Fagereng, Francesca Meneghini, Heather M. Savage, Hannah S. Rabinowitz, Julia K. Morgan, Hiroko Kitajima, Steffen Kutterolf, Yoshitaka Hashimoto, Christie H. Engelmann de Oliveira, Atsushi Noda, Martin P. Crundwell, Claire L. Shepherd, Adam D. Woodhouse, Robert N. Harris, Maomao Wang, Stuart Henrys, Da
Published in: Science Advances, Issue 6/13, 2020, Page(s) eaay3314, ISSN 2375-2548
Publisher: American Association for the Advancement of Science
DOI: 10.1126/sciadv.aay3314

The northern Hikurangi margin three-dimensional plate interface in New Zealand remains rough 100 km from the trench

Author(s): Harold Leah, Åke Fagereng, Ian Bastow, Rebecca Bell, Victoria Lane, Stuart Henrys, Katie Jacobs, Bill Fry
Published in: Geology, Issue 50, 2022, Page(s) 1256-1260, ISSN 0091-7613
Publisher: Geological Society of America
DOI: 10.1130/g50272.1

Inherited Heterogeneities Can Control Viscous Subduction Zone Deformation of Carbonates at Seismogenic Depths

Author(s): H. Leah, Å. Fagereng
Published in: Geophysical Research Letters, Issue 49, 2022, Page(s) e2022GL099358, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2022gl099358

Geological constraints on the mechanisms of slow earthquakes

Author(s): James D. Kirkpatrick, Åke Fagereng, David R. Shelly
Published in: Nature Reviews Earth & Environment, Issue 2/4, 2021, Page(s) 285-301, ISSN 2662-138X
Publisher: Springer Nature
DOI: 10.1038/s43017-021-00148-w

Tectonic pressure gradients during viscous creep drive fluid flow and brittle failure at the base of the seismogenic zone

Author(s): Luca Menegon, Åke Fagereng
Published in: Geology, Issue 49, 2021, Page(s) 1255–1259, ISSN 0091-7613
Publisher: Geological Society of America
DOI: 10.1130/g49012.1

The role of quartz cementation in the seismic cycle: a critical review

Author(s): Randolph T. Williams; Åke Fagereng
Published in: Reviews of Geophysics, Issue 60, 2021, Page(s) e2021RG000768, ISSN 8755-1209
Publisher: American Geophysical Union
DOI: 10.1029/2021rg000768

Hydrous oceanic crust hosts megathrust creep at low shear stresses

Author(s): Christopher J. Tulley, Åke Fagereng, Kohtaro Ujiie
Published in: Science Advances, Issue 6/22, 2020, Page(s) eaba1529, ISSN 2375-2548
Publisher: American Association for the Advancement of Science
DOI: 10.1126/sciadv.aba1529

Mechanical evolution, fluid pressure generation, and shallow slow slip in subducton zones

Author(s): Harold Leah
Published in: 2021
Publisher: Cardiff University

Sources and effects of fluids in continental retrograde shear zones

Author(s): Christian Stenvall
Published in: 2020
Publisher: Cardiff University

Geology of the subduction thrust: insights from exhumed shear zones on Kyushu, SW Japan

Author(s): Christopher Tulley
Published in: 2021
Publisher: Cardiff University

Taking to the seas to discover how the Earth’s surface moves

Author(s): Ake Fagereng
Published in: Futurum Careers, Issue 4, 2020, Page(s) 76, ISSN 2632-8399
Publisher: Sci-Comm Consulting
DOI: 10.33424/futurum44

How we discovered the conditions behind 'slow earthquakes’ that happen over weeks or even months – new research

Author(s): Ake Fagereng
Published in: The Conversation, 2020
Publisher: The Conversation

Author(s): Ake Fagereng, Johann F. A. Diener, Susan Ellis, Francesca Remitti
Published in: Geology and Tectonics of Subduction Zones: A Tribute to Gaku Kimura, Issue Geological Society of America Special Paper 534, 2018, Page(s) 187-215, ISBN 9780-813725345
Publisher: Geological Society of America
DOI: 10.1130/2018.2534(12)

On Seismicity and Structural Style of Oceanic Transform Faults: A Field Geological Perspective From the Troodos Ophiolite, Cyprus

Author(s): Åke Fagereng, Christopher J. MacLeod
Published in: Transform Plate Boundaries and Fracture Zones, 2019, Page(s) 437-459, ISBN 9780-128120644
Publisher: Elsevier
DOI: 10.1016/b978-0-12-812064-4.00018-9

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