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Haida Gwaii earthquake 2012

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Journal Article
Published: 29 January 2016
Canadian Journal of Earth Sciences (2016) 53 (2): 129-139.
...Dariush Motazedian; Yong Zhang; Shutian Ma; Yun-tai Chen AbstractThe 28 October 2012 Haida Gwaii, British Columbia, Canada, earthquake with a moment magnitude (MW) of 7.8 occurred along an east-dipping poorly known thrust fault beneath the Queen Charlotte Terrace. It was the largest thrust event...
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Journal Article
Published: 15 July 2015
Seismological Research Letters (2015) 86 (5): 1301-1309.
... community were, however, toured by the visiting presenters, led by Skidegate’s Emergency Planning Coordinator. The October 2012 magnitude 7.8 earthquake caused strong shaking throughout the islands of Haida Gwaii and was felt as far away as Montana. Over 3000 DYFI reports were submitted to the websites...
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Journal Article
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1106-1113.
...Jeremy M. Gosselin; John F. Cassidy; Stan E. Dosso AbstractThe thrust mechanism of the 2012 Mw 7.8 Haida Gwaii earthquake suggests convergence across the transpressive Pacific–North America plate boundary in the region is accommodated by underthrusting, with important consequences for seismic...
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Journal Article
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1280-1289.
...Lucinda J. Leonard; Jan M. Bednarski AbstractWe describe near‐field coseismic and tsunami evidence collected following the 28 October 2012 Mw 7.8 thrust earthquake that occurred offshore western Haida Gwaii, British Columbia, and discuss factors that influence its extent and preservation potential...
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Journal Article
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1206-1218.
...Honn Kao; Shao‐Ju Shan; Amir Mansour Farahbod AbstractAll the significant (ML≥4) events in the 2012 Haida Gwaii earthquake sequence are systematically relocated, and their moment tensor solutions are determined from waveform inversion. The focal mechanism of the mainshock shows low‐angle thrust...
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Journal Article
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1219-1230.
...Tiegan E. Hobbs; John F. Cassidy; Stan E. Dosso AbstractThis article examines rupture processes of the 28 October 2012 Mw 7.8 Haida Gwaii earthquake off the coast of British Columbia, Canada, using an empirical Green’s function (EGF) technique. The Haida Gwaii earthquake was the largest event...
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Journal Article
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1241-1252.
...Lisa Nykolaishen; Herb Dragert; Kelin Wang; Thomas S. James; Michael Schmidt AbstractOn 28 October 2012, an Mw 7.8 earthquake occurred off the west coast of Haida Gwaii, British Columbia. Although past large events at this margin reflect strike‐slip motion between the Pacific and North American...
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Journal Article
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1253-1264.
...T. E. Hobbs; J. F. Cassidy; S. E. Dosso; C. Brillon AbstractThis article examines spatial changes to the local stress field resulting from the 28 October 2012, Mw 7.8 Haida Gwaii earthquake, off the west coast of Moresby Island, British Columbia. This event occurred on a northeast‐dipping...
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Journal Article
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1290-1300.
...Kelin Wang; Jiangheng He; Franziska Schulzeck; Roy D. Hyndman; Michael Riedel AbstractThe 2012 Mw 7.8 Haida Gwaii earthquake confirmed very oblique subduction and slip partitioning at the southern Queen Charlotte margin. In this study, we re‐examine the thermal regime near the earthquake using new...
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Journal Article
Published: 03 March 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1178-1192.
...Alison L. Bird; Maurice Lamontagne AbstractOn 27 October 2012, a magnitude (Mw) 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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Journal Article
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1165-1177.
... broadband stations in the Canadian National Seismograph Network and find that the 2012 Mw 7.8 Haida Gwaii and 2013 Mw 7.5 Craig, Alaska, earthquakes triggered long duration (>10  s), emergent tremor‐like signals near the southeastern portion of the EDF. In both cases, tremor coincides with the peak...
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Journal Article
Published: 07 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1231-1240.
... which the 1949 M s  8.1 earthquake took place ( Rogers, 1983 ; Bostwick, 1984 ). Although the source region of the more recent event (the 28 October 2012 M w  7.8 Haida Gwaii earthquake) overlaps the southern portion of the 1949 rupture, the corresponding seismogenic pattern is obviously different...
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Journal Article
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1053-1057.
...Thomas S. James; John F. Cassidy; Garry C. Rogers; Peter J. Haeussler The 27 October 2012 M w  7.8 Haida Gwaii thrust earthquake and the 5 January 2013 M w  7.5 Craig strike‐slip earthquake are the focus of this special issue. They occurred along the transform boundary between the Pacific...
FIGURES
Journal Article
Published: 19 August 2015
Seismological Research Letters (2015) 86 (5): 1278-1286.
...Anne F. Sheehan; Aditya Riadi Gusman; Mohammad Heidarzadeh; Kenji Satake In this study, we use seafloor pressure measurements from absolute pressure gauges ( APG s), differential pressure gauges ( DPG s), and DART BPR s to study the tsunami caused by the 2012 Haida Gwaii earthquake. The APG...
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Journal Article
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1265-1279.
...Peter J. Haeussler; Robert C. Witter; Kelin Wang AbstractThe 28 October 2012 Mw 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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Journal Article
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1058-1075.
...R. D. Hyndman AbstractThis 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 Mw 7.8 thrust earthquake off Haida Gwaii. There was margin subduction prior to the Eocene. The fault...
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Series: Geological Society, London, Memoirs
Published: 01 January 2014
DOI: 10.1144/M41.22
EISBN: 9781862397057
... in the north on Haida Gwaii (16 14 C ka BP) then outer Vancouver Island (14 14 C ka BP), and generally progressed east with ice persisting on the Fraser lowland and northern British Columbia mainland, and possibly the central interbasin coast, until after 10 14 C ka BP. Retreat on the Pacific North Coast...
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Journal Article
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1193-1205.
...Trevor I. Allen; Camille Brillon AbstractThe 28 October 2012 Mw 7.8 Haida Gwaii earthquake was the second largest earthquake instrumentally recorded in Canada’s territory and was strongly felt across the British Columbia north coast (BCNC) region. Data from the Haida Gwaii sequence and other...
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Image
Tsunami waveforms from 28 October <b>2012</b> <b>Haida</b> <b>Gwaii</b> <b>earthquake</b> recorded on a...
Published: 19 August 2015
Figure 3. Tsunami waveforms from 28 October 2012 Haida Gwaii earthquake recorded on a subset of DART and CI ocean‐bottom pressure recorders. Black curves indicate seafloor pressure records with instrument response removed and converted to water height and red curves indicate simulated
Image
Map of <b>Haida</b> <b>Gwaii</b> region showing epicenter of <b>2012</b>  M  w  7.8 <b>earthquake</b> d...
Published: 14 April 2015
Figure 2. Map of Haida Gwaii region showing epicenter of 2012 M w  7.8 earthquake determined by the USGS (star), Global Positioning System ( GPS ) sites (triangles), and biological indicator sites of this study (squares). The Sandspit GPS site (BCSS) is continuously recording, whereas