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![▴ Maps showing three major source regions in Canada (western, eastern, and northern) and the seven subregions in western Canada: QCI: the Haida Gwaii, formerly known as the Queen Charlotte Islands; RDW: the Revere-Dellwood-Wilson fault zone offshore west of northern Vancouver Island; SFZ: the Sovanco fracture zone and Nootka fault zone offshore west of central Vancouver Island; YNT: the Yukon and Northwest territories; BCI: the interior of British Columbia; VCI: Vancouver Island; PDS: the Puget Sound region just south of Vancouver Island. ExP, JdF, RMt, and MKMt mark the Explorer plate, Juan de Fuca plate, Richardson Mountains, and Mackenzie Mountains, respectively.]()
![Seismic reflection profiles across transpressive (A–C) and subducting (D) plate boundaries drawn as in Figure 1. Locations are in panel E and Figure 1. Compression rates across Queen Charlotte fault were calculated from a geomorphic study (Brothers et al., 2019) and plate circuit poles of rotation (DeMets and Merkouriev, 2016): (A) multichannel line 77-02 (modified from Walton et al., 2015), ~14–15 Ma with compression varying from 3 to 10 mm/yr; (B) single-channel line 86-01 (Fig. 3A), ~10–11 Ma with compression of 5–15 mm/yr; (C) single-channel line 86-03 (modified from Rohr, 2015), 8–9 Ma with compression at most 5–15 mm/yr; and (D) lines 85-07 and 85-02 (modified from Rohr et al., 2019), 5–6 Ma with compression at ~35–41 mm/yr (Wilson, 2002). RDF—Revere-Dellwood fault; QCF—Queen Charlotte fault. In D, Juan de Fuca plate is subducting under North America. Dip of plate is annotated in E; in C, dip was measured between Revere-Dellwood fault and Queen Charlotte fault.]()
![Regional map showing digital elevation model of Haida Gwaii (offshore western Canada), bathymetric contours at 250 m increments, low-temperature thermochronometry sample locations (white circles), and pertinent tectonic features. Focal mechanisms for three historic ≥ M7 earthquakes (Rogers, 1986; Lay et al., 2013) show varying degrees of strain partitioning at the plate boundary. Pacific plate age is marked as gray lines extending off Queen Charlotte terrace (Wilson, 2002). Relative plate motion vector is calculated from DeMets and Merkouriev (2016). Inset shows regional context. QCF—Queen Charlotte fault; QCT—Queen Charlotte terrace; QCB—Queen Charlotte Basin; TWS—Tuzo Wilson Seamounts; RDF—Revere Dellwood fault.]()
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![(A) Haida Gwaii (British Columbia, Canada) diverts North American (NA) sediments from reaching flexural Queen Charlotte trough (white dashed line on 2800 m contour) or abyssal plain west of the islands. Numerous gullies (blue lines) south and north of Haida Gwaii feed Queen Charlotte and Baranof slope fans; broad white arrows show direction of flow. On continental slope, not every gully was drawn because there were too many between Pacific (PA) plate and North American plate (Harris et al., 2014). Plate boundary consists of Queen Charlotte fault (QCF) and Revere-Dellwood fault (RDF) (yellow lines). Thin gray line denotes area of depth-to-basement map in Walton et al. (2015). Bathymetry is combination of Global Multi-Resolution Topography (Ryan et al., 2009) downloaded from GeoMapApp (https://www.geomapapp.org) and Geological Survey of Canada multibeam data of Queen Charlotte fault (Barrie et al., 2013). (B) Magnetic anomaly interpretations (light gray polygons) after Wilson (2002). Rift propagators are denoted as gray lines.]()
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1-20 OF 21 RESULTS FOR
Revere-Dellwood-Wilson Fault
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Journal Article
Rupture directivity and slip distribution for the M s 6.8 earthquake of 6 April 1992, Offshore British Columbia: An application of the empirical Green's function method using surface waves Available to Purchase
Publisher: Seismological Society of America
Published: 01 June 1995
Bulletin of the Seismological Society of America (1995) 85 (3): 736–746.
...John F. Cassidy Abstract On 6 April 1992 at 13:55 UT , an earthquake of M s = 6.8 occurred along the Revere-Dellwood-Wilson ( RDW ) fault, in the triple-junction region at the northern end of the Cascadia subduction zone. This was the first significant event in this region recorded by modern...
Image
▴ Maps showing three major source regions in Canada (western, eastern, and ... Available to Purchase
in Regional Centroid-Moment-Tensor Analysis for Earthquakes in Canada and Adjacent Regions: An Update
> Seismological Research Letters
Published: 01 May 2012
Figure 2. ▴ Maps showing three major source regions in Canada (western, eastern, and northern) and the seven subregions in western Canada: QCI: the Haida Gwaii, formerly known as the Queen Charlotte Islands; RDW: the Revere-Dellwood-Wilson fault zone offshore west of northern Vancouver Island
Journal Article
The rupture process and aftershock distribution of the 6 April 1992 M S 6.8 earthquake, Offshore British Columbia Available to Purchase
Publisher: Seismological Society of America
Published: 01 June 1995
Bulletin of the Seismological Society of America (1995) 85 (3): 716–735.
... after the mainshock at 15:16 LIT and was lo- est earthquake in the high-seismicity region off the west cated --20 km to the SE. coast of Canada since 1980 and the largest to occur along the Revere-Dellwood-Wilson transform fault in at least 75 In this study, we have located the foreshock, mainshock, yr...
Journal Article
Geological and geophysical characteristics of the Tuzo Wilson Seamounts: implications for plate geometry in the vicinity of the Pacific – North America – Explorer triple junction Free
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 01 November 1989
Canadian Journal of Earth Sciences (1989) 26 (11): 2365–2384.
... southwest of the southern end of the Queen Charlotte transform fault. SeaMARC II imagery reveals a parallel transform fault, an extension of the Revere–Dellwood Fault, bordering the southwest end of the Dell wood Knolls and terminating at the southwest end of the Tuzo Wilson Seamounts. This transform-fault...
Image
Seismic reflection profiles across transpressive (A–C) and subducting (D) p... Open Access
in Deposition, deformation, and flexure in a transpressional trough, Queen Charlotte fault, offshore Haida Gwaii (British Columbia, Canada)
> Geosphere
Published: 27 November 2024
Rohr, 2015 ), 8–9 Ma with compression at most 5–15 mm/yr; and (D) lines 85-07 and 85-02 (modified from Rohr et al., 2019 ), 5–6 Ma with compression at ~35–41 mm/yr ( Wilson, 2002 ). RDF—Revere-Dellwood fault; QCF—Queen Charlotte fault. In D, Juan de Fuca plate is subducting under North America. Dip
Image
Regional map showing digital elevation model of Haida Gwaii (offshore weste... Available to Purchase
in Uplift and exhumation in Haida Gwaii driven by terrane translation and transpression along the southern Queen Charlotte fault, Canada
> Geology
Published: 19 May 2020
context. QCF—Queen Charlotte fault; QCT—Queen Charlotte terrace; QCB—Queen Charlotte Basin; TWS—Tuzo Wilson Seamounts; RDF—Revere Dellwood fault.
Journal Article
Regional Centroid-Moment-Tensor Analysis for Earthquakes in Canada and Adjacent Regions: An Update Available to Purchase
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 01 May 2012
Seismological Research Letters (2012) 83 (3): 505–515.
...Figure 2. ▴ Maps showing three major source regions in Canada (western, eastern, and northern) and the seven subregions in western Canada: QCI: the Haida Gwaii, formerly known as the Queen Charlotte Islands; RDW: the Revere-Dellwood-Wilson fault zone offshore west of northern Vancouver Island...
FIGURES
Image
(A) Haida Gwaii (British Columbia, Canada) diverts North American (NA) sedi... Open Access
in Deposition, deformation, and flexure in a transpressional trough, Queen Charlotte fault, offshore Haida Gwaii (British Columbia, Canada)
> Geosphere
Published: 27 November 2024
and Baranof slope fans; broad white arrows show direction of flow. On continental slope, not every gully was drawn because there were too many between Pacific (PA) plate and North American plate ( Harris et al., 2014 ). Plate boundary consists of Queen Charlotte fault (QCF) and Revere-Dellwood fault (RDF
Journal Article
Deposition, deformation, and flexure in a transpressional trough, Queen Charlotte fault, offshore Haida Gwaii (British Columbia, Canada) Open Access
Journal: Geosphere
Publisher: Geological Society of America
Published: 27 November 2024
Geosphere (2025) 21 (1): 1–17.
... Rohr, 2015 ), 8–9 Ma with compression at most 5–15 mm/yr; and (D) lines 85-07 and 85-02 (modified from Rohr et al., 2019 ), 5–6 Ma with compression at ~35–41 mm/yr ( Wilson, 2002 ). RDF—Revere-Dellwood fault; QCF—Queen Charlotte fault. In D, Juan de Fuca plate is subducting under North America. Dip...
FIGURES
Journal Article
Seismicity, earthquake mechanisms, and tectonics along the western coast of North America, from 42°N to 61°N Available to Purchase
Publisher: Seismological Society of America
Published: 01 October 1974
Bulletin of the Seismological Society of America (1974) 64 (5): 1529–1549.
... that the tectonics of the Gorda basin is complex. The existence of the Blanco fracture zone and the Queen Charlotte Islands fault as dextral transform faults, east block moving south, is confirmed. Evidences derived from the focal mechanism solutions indicate that the Revere-Dellwood and Sovanco fracture zones...
Journal Article
Plate Boundary Adjustments of the Southernmost Queen Charlotte Fault Available to Purchase
Publisher: Seismological Society of America
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1076–1089.
... in the Queen Charlotte region: 1982–1996 , M.Sc. Thesis , University of Victoria, Victoria, British Columbia, Canada , 125 pp. Bird A. L. Rogers G. C. Cassidy J. F. Kao H. Dragert H. Bentkowski W. ( 2008 ). January 2008 Revere‐Dellwood‐Wilson fault earthquake sequence...
FIGURES
Journal Article
Tectonics and Structure of the Queen Charlotte Fault Zone, Haida Gwaii, and Large Thrust Earthquakes Available to Purchase
Publisher: Seismological Society of America
Published: 14 April 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1058–1075.
... that a northward extension of the Revere–Dellwood fault zone overlaps the southernmost part of the QCF zone in this region. The southern end of the QCF appears to have a series of offset steps. The northernmost end of the Revere–Dellwood fault zone extension is close to the southernmost extent of the 2012 M...
FIGURES
Journal Article
Explorer deformation zone: Evidence of a large shear zone and reorganization of the Pacific–Juan de Fuca–North American triple junction Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 01 March 2006
Geology (2006) 34 (3): 213–216.
...–Juan de Fuca and Juan de Fuca–North America. Open arrows are Explorer relative motion averaged over past 1 m.y. ( Riddihough, 1984 ). Abbreviations: RDW—Revere-Dellwood-Wilson, Win— Winona block, C.O.—Cobb offset, F.Z.—fracture zone. Endeavour segment is northernmost section of Juan de Fuca Ridge...
FIGURES
Journal Article
Uplift and exhumation in Haida Gwaii driven by terrane translation and transpression along the southern Queen Charlotte fault, Canada Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 19 May 2020
Geology (2020) 48 (9): 908–912.
... context. QCF—Queen Charlotte fault; QCT—Queen Charlotte terrace; QCB—Queen Charlotte Basin; TWS—Tuzo Wilson Seamounts; RDF—Revere Dellwood fault. ...
FIGURES
Journal Article
Temporal and spatial evolution of Northern Cascade Arc magmatism revealed by LA–ICP–MS U–Pb zircon dating Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 01 February 2018
Canadian Journal of Earth Sciences (2018) 55 (5): 443–462.
... 2015 ), the Explorer–North American–Pacific triple junction is a zone of distributed shear between the strike-slip Queen Charlotte fault (QCF) and Dellwood–Revere fault (DRF). Seismic tomography places the present-day northern edge of the Explorer plate at the Brooks Peninsula Fault Zone (BPFZ), which...
FIGURES
Includes: Supplemental Content
Journal Article
An Abrupt Transition in the Mechanical Response of the Upper Crust to Transpression along the Queen Charlotte Fault Available to Purchase
Publisher: Seismological Society of America
Published: 03 March 2015
Bulletin of the Seismological Society of America (2015) 105 (2B): 1114–1128.
... we refer to as the southern QCT ), the continental margin is characterized by a 30 km wide terrace bounded by nearly parallel scarps ( Chase and Tiffin, 1972 ; Hyndman and Ellis, 1981 ). South of 52° N, the margin morphology is affected by northward propagation of the Revere‐Dellwood fault (Fig...
FIGURES
Journal Article
New probabilistic strong seismic ground motion maps of Canada Available to Purchase
Publisher: Seismological Society of America
Published: 01 April 1985
Bulletin of the Seismological Society of America (1985) 75 (2): 563–595.
... for magnitude recurrence calculation; and major plate boundary faults and fracture zones of the Juan de Fuca Ridge system: QCF, Queen Charlotte fault; WK, J. T. Wilson Knools; DK, Dellwood Knolls; WDS, Wilson-Dellwood Shearzone; RR, Revere Ridge; ER, Explorer Ridge. southeast and the Juan de Fuca ridge system...
Journal Article
Slipstream: an early Holocene slump and turbidite record from the frontal ridge of the Cascadia accretionary wedge off western Canada and paleoseismic implications Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 10 April 2015
Canadian Journal of Earth Sciences (2015) 52 (6): 405–430.
..., Winona Basin; CSZ, Cascadia Subduction Zone; JR, Juan de Fuca Ridge; WV, West Valley; MV, Middle Valley; SFZ, Sovanco Fracture Zone; EX, Explorer Seamount; ER, Explorer Ridge; RFZ, Revere Fault Zone; DFZ; Delwood Fracture Zone; DK: Dellwood Knolls; TW; Tuzo Wilson Seamounts; QCF, Queen Charlotte Fault...
FIGURES
Journal Article
SEG Newsletter 28 (January) Available to Purchase
Journal: SEG Discovery
Publisher: Society of Economic Geologists
Published: 01 January 1997
SEG Discovery (1997) (28): 1–48.
... over 2.6 million ounces (80.9 tonnes) of gold and· 350,000 oz. (10.9 t) of silver. In addition, an estimated 170,000 oz. (5.3 t) of gold and 2.4 million oz. (74.6 t) of silver were produced from lode deposits in the district, with production from veins and fault zones in Archean metamorphic rocks...
Journal Article
2022 Annual Meeting Available to Purchase
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 01 April 2022
Seismological Research Letters (2022) 93 (2B): 1115–1372.
... into microplate deformation processes. The Revere-Dellwood-Queen Charlotte Fault system is posited to have evolved as a NW-migrating, transtensional stepover between Haida Gwaii and the Explorer ridge, under regional compression. Transtension has now ceased at the Winona basin where slip is partitioned between...
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