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Queen Charlotte Islands earthquake 2012

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Journal Article

Tectonics and Structure of the Queen Charlotte Fault Zone, Haida Gwaii, and Large Thrust Earthquakes

R. D. Hyndman
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1058–1075.
DOI: https://doi.org/10.1785/0120140181
...R. D. Hyndman Abstract This article provides a summary of the structure and tectonic history of the Queen Charlotte transform fault zone off western Canada, as background to understanding the 2012 M w 7.8 thrust earthquake off Haida Gwaii. There was margin subduction prior to the Eocene. The fault...
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GPS Observations of Crustal Deformation Associated with the 2012 M w 7.8 Haida Gwaii Earthquake

Lisa Nykolaishen, Herb Dragert, Kelin Wang, Thomas S. James, Michael Schmidt
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1241–1252.
DOI: https://doi.org/10.1785/0120140177
... and Smith, 1995 ). This is Earth Sciences Sector (ESS) Contribution Number 20140570. References Bird A. L. ( 1997 ). Earthquakes in the Queen Charlotte Island region: 1982–1996 , M.Sc. Thesis , University of Victoria, Victoria, British Columbia , 127  pp. Bustin A. M. M. ( 2006...
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Coulomb Stress Changes Following the 2012 M w 7.8 Haida Gwaii, Canada, Earthquake: Implications for Seismic Hazard

T. E. Hobbs, J. F. Cassidy, S. E. Dosso, C. Brillon
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1253–1264.
DOI: https://doi.org/10.1785/0120140158
... Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332‐0340; [email protected] . 7 June 2014 The 28 October 2012 (UTC) M w  7.8 Haida Gwaii earthquake ruptured more than 100 km along the seaward edge of the Queen Charlotte Terrace off the west...
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Intertidal Biological Indicators of Coseismic Subsidence during the M w 7.8 Haida Gwaii, Canada, Earthquake

Peter J. Haeussler, Robert C. Witter, Kelin Wang
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1265–1279.
DOI: https://doi.org/10.1785/0120140197
...Peter J. Haeussler; Robert C. Witter; Kelin Wang Abstract The 28 October 2012 M w 7.8 Haida Gwaii earthquake was a megathrust earthquake along the very obliquely convergent Queen Charlotte margin of British Columbia, Canada. Coseismic deformation is not well constrained by geodesy, with only six...
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Impacts of the October 2012 Magnitude 7.8 Earthquake near Haida Gwaii, Canada

Alison L. Bird, Maurice Lamontagne
Published: 03 March 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1178–1192.
DOI: https://doi.org/10.1785/0120140167
...Alison L. Bird; Maurice Lamontagne Abstract On 27 October 2012, a magnitude ( M w ) 7.8 earthquake occurred in the sparsely populated region of Haida Gwaii, British Columbia, Canada (formerly called the Queen Charlotte Islands). This was the second largest recorded earthquake in Canadian history...
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The <span class="search-highlight">Queen</span> <span class="search-highlight">Charlotte</span> fault ( QCF ) zone, the <span class="search-highlight">islands</span> of Haida Gwaii and adja...

The Queen Charlotte fault ( QCF ) zone, the islands of Haida Gwaii and adja...

Published: 14 April 2015
Figure 1. The Queen Charlotte fault ( QCF ) zone, the islands of Haida Gwaii and adjacent area, and the locations of the 2012 M w  7.8 (ellipse), 2013 M w  7.5 (solid line), and 1949 M s  8.1 (dashed) earthquakes. The along margin extent of the 1949 event is not well constrained.
Image
(a) Regional map showing the location of the <span class="search-highlight">Queen</span> <span class="search-highlight">Charlotte</span> fault ( QCF ) ...

(a) Regional map showing the location of the Queen Charlotte fault ( QCF ) ...

Published: 03 March 2015
tectonic setting (adapted from Riddihough and Hyndman, 1991 ). E, Explorer plate; JdF, Juan de Fuca; RD, Revere‐Delwood fault; G, Gorda plate; SAF, San Andreas fault; QCF , Queen Charlotte fault; Aja FZ, Aja fracture zone; YB, Yakutat block; GI, Graham Island. Graham Island is the northernmost
Journal Article

Deposition, deformation, and flexure in a transpressional trough, Queen Charlotte fault, offshore Haida Gwaii (British Columbia, Canada)

Kristin M.M. Rohr, Michael Riedel, Kevin P. Furlong
Journal: Geosphere
Published: 27 November 2024
Geosphere (2024)
DOI: https://doi.org/10.1130/GES02777.1
... mechanisms occurred in the abundant aftershock sequence one year after the 2012 M7.8 earthquake occurred in the trough (Kao et al., 2015). In fact, most aftershocks within two months of the main shock took place in the trough in a 10 1 5-km-w ide band at the base of the Queen Charlotte terrace (Farahbod...
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Journal Article

Introduction to the Special Issue on the 2012 Haida Gwaii and 2013 Craig Earthquakes at the Pacific–North America Plate Boundary (British Columbia and Alaska)

Thomas S. James, John F. Cassidy, Garry C. Rogers, Peter J. Haeussler
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1053–1057.
DOI: https://doi.org/10.1785/0120150044
.... The Haida Gwaii earthquake occurred on a thrust fault beneath the Queen Charlotte terrace west of Moresby Island, indicating that relative plate motion here is accommodated by slip partitioning into thrust and strike‐slip motion. (The thrust fault is termed the Haida Gwaii thrust fault in this issue...
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Seismic velocity structure of the Queen Charlotte terrace off western Canada in the region of the 2012 Haida Gwaii Mw 7.8 thrust earthquake

M. Riedel, S. Yelisetti, C. Papenberg, K.M.M. Rohr, M.M. Côté, G.D. Spence, R.D. Hyndman, T. James
Journal: Geosphere
Published: 23 December 2020
Geosphere (2021) 17 (1): 23–38.
DOI: https://doi.org/10.1130/GES02258.1
...M. Riedel; S. Yelisetti; C. Papenberg; K.M.M. Rohr; M.M. Côté; G.D. Spence; R.D. Hyndman; T. James Abstract A well-recorded Mw 7.8 megathrust earthquake occurred on 27 October 2012 under the Queen Charlotte terrace off the west coast of Haida Gwaii, western Canada. In this study, we supplement...
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Thermal Condition of the 27 October 2012 M w 7.8 Haida Gwaii Subduction Earthquake at the Obliquely Convergent Queen Charlotte Margin

Kelin Wang, Jiangheng He, Franziska Schulzeck, Roy D. Hyndman, Michael Riedel
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1290–1300.
DOI: https://doi.org/10.1785/0120140183
... Gwaii (formerly named Queen Charlotte Islands), relative motion of the two plates has had a small convergent component of ∼20° at 15–20  mm/yr over the past ∼6 million years ( Hyndman and Hamilton, 1993 ; Atwater and Stock, 1998 ). On 27 October 2012, an M w  7.8 thrust earthquake occurred offshore...
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Uplift and exhumation in Haida Gwaii driven by terrane translation and transpression along the southern Queen Charlotte fault, Canada

Philip Schoettle-Greene, Alison R. Duvall, Ann Blythe, Eric Morley, William Matthews, Sean R. LaHusen
Journal: Geology
Published: 19 May 2020
Geology (2020) 48 (9): 908–912.
DOI: https://doi.org/10.1130/G47364.1
...—Tuzo Wilson Seamounts; RDF—Revere Dellwood fault. The 2012 M7.8 thrust earthquake adjacent to central Haida Gwaii and the Queen Charlotte fault provides some insight into strain accommodation along this plate boundary ( Fig. 1 ). Interpreted as occurring on a nascent subduction megathrust...
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An Abrupt Transition in the Mechanical Response of the Upper Crust to Transpression along the Queen Charlotte Fault

Anne M. Tréhu, Maren Scheidhauer, Kristin M. M. Rohr, Basil Tikoff, Maureen A. L. Walton, Sean P. S. Gulick, Emily C. Roland
Published: 03 March 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1114–1128.
DOI: https://doi.org/10.1785/0120140159
... tectonic setting (adapted from Riddihough and Hyndman, 1991 ). E, Explorer plate; JdF, Juan de Fuca; RD, Revere‐Delwood fault; G, Gorda plate; SAF, San Andreas fault; QCF , Queen Charlotte fault; Aja FZ, Aja fracture zone; YB, Yakutat block; GI, Graham Island. Graham Island is the northernmost...
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Shear‐Wave Velocity Structure in the Vicinity of the 2012 M w 7.8 Haida Gwaii Earthquake from Receiver Function Inversion

Jeremy M. Gosselin, John F. Cassidy, Stan E. Dosso
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1106–1113.
DOI: https://doi.org/10.1785/0120140171
... . Bérubé J. Rogers G. C. Ellis R. M. Hasselgren E. O. ( 1989 ). A microseismicity study of the Queen Charlotte Islands region , Can. J. Earth Sci. 26 , 2556 – 2566 . Bird A. L. ( 1997 ). Earthquakes in the Queen Charlotte Islands region: 1982–1996 , M.Sc. Thesis...
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The Preservation Potential of Coastal Coseismic and Tsunami Evidence Observed Following the 2012 M w 7.8 Haida Gwaii Thrust Earthquake

Lucinda J. Leonard, Jan M. Bednarski
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1280–1289.
DOI: https://doi.org/10.1785/0120140193
..., and offshore. Their investigation may play an important role in assessing the recurrence of megathrust earthquakes similar to the 2012 Haida Gwaii earthquake as well as that of large strike‐slip earthquakes on the southernmost Queen Charlotte fault offshore Moresby Island, a seismic gap recognized by Rogers...
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Gas hydrate occurrences along the Haida Gwaii margin—Constraints on the geothermal regime and implications for fluid flow

Michael Riedel, Kristin M.M. Rohr, Michelle M. Côté, Ulrike Schmidt, Terryl Richardson
Journal: Geosphere
Published: 19 December 2019
Geosphere (2020) 16 (1): 1–12.
DOI: https://doi.org/10.1130/GES02103.1
... and Merkouriev, 2016 ). The Queen Charlotte fault (QCF) and its northern extension, the Fairweather fault, are regions of repeated large strike-slip earthquakes (e.g., Rogers, 1982 ; Ristau et al., 2007 ) of magnitude M w 8 and above. The margin has seen a new wave of attention after the 27 October 2012, M w...
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Plate Boundary Adjustments of the Southernmost Queen Charlotte Fault

Kristin M. M. Rohr
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1076–1089.
DOI: https://doi.org/10.1785/0120140162
... , 311 – 318 . Berubé J. Rogers G. C. Ellis R. M. Hasselgren E. O. ( 1989 ). A micro‐seismicity study of the Queen Charlotte Island region , Can. J. Earth Sci. 26 , 2556 – 2566 . Bird A. L. ( 1997 ). Earthquakes in the Queen Charlotte region: 1982–1996 , M.Sc...
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Spatiotemporal Distribution of Events during the First Week of the 2012 Haida Gwaii Aftershock Sequence

Amir Mansour Farahbod, Honn Kao
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1231–1240.
DOI: https://doi.org/10.1785/0120140173
... and 2012 off the west coast of the Haida Gwaii (formerly known as the Queen Charlotte Islands; Fig.  1 ). The tectonic setting of this region is characterized by a major transform plate boundary between the Pacific and North American plates (i.e., the Queen Charlotte fault [ QCF ]), along which the 1949 M...
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Source Characteristics of the 2012 Haida Gwaii Earthquake Sequence

Honn Kao, Shao‐Ju Shan, Amir Mansour Farahbod
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1206–1218.
DOI: https://doi.org/10.1785/0120140165
... October 2012 at 03:04:6.3 UTC (20:04:6.3 PDT 27 October 2012 at the epicenter) west of Haida Gwaii (formerly the Queen Charlotte Islands), British Columbia (Fig.  1 ). With moment magnitude ( M w ) 7.8, the mainshock of this earthquake sequence is deemed the second largest seismic event in Canada since...
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Rupture Process of the 2012 M w 7.8 Haida Gwaii Earthquake from an Empirical Green’s Function Method

Tiegan E. Hobbs, John F. Cassidy, Stan E. Dosso
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1219–1230.
DOI: https://doi.org/10.1785/0120140175
... and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332‐0340; [email protected] . 17 June 2014 Figure 1. Tectonic setting of the Haida Gwaii earthquake, including the trace of the Queen Charlotte fault ( QCF ). (a) The location of the 2012...
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