how was the queen charlotte fault made

Santa Cruz, CA 95060 The fault steps westward at Tuzo Wilson Knolls, which are likely part of a spreading ridge segment. This research aims to better characterize the earthquake potential of the southern Fairweather Fault in order to provide more accurate fault source data for the USGS National Seismic Hazard Map. An official website of the United States government. Cent neuf tremblements de terre de magnitude variant entre 0,5 5,1 furent nettement enregistrs trois stations et plus, et la localisation de chacun a t dtermine avec prcision. (Brown Bulletin 54, 157), Figure 7: Fault system near Queen Charlotte's Islands. ; (United States). We're involved in a wide variety of locally-relevant aquatic and terrestrial research. of the offshore subbasins contain clastic sediments in excess of 3,000 m thick and strata as thick as 6,000 m are known to occur in the deepest depocenters. Charlotte, original name Charlotte Sophia of Mecklenburg-Strelitz, (born May 19, 1744died November 17, 1818), queen consort of George III of England. Title, Glacier Bay National Park & Preserve Queen Charlotte fault (54N) delineate patterns of brittle faulting linked to transform development since 50 Ma. The QCF formed off the west coast of the islands of Haida Gwaii upon the termination of margin subduction in the Eocene. Data from this research are being used to refine the seismic hazard for southeastern Alaska, as well as to develop geologic models that can be applied to similar plate boundaries around the globe, said Peter Haeussler, USGS Geologist at the Alaska Science Center and a co-author of the data publications. An important tectonic boundary, the Fairweather-Queen Charlotte fault system, runs along the western coast of the park. Q ueen Charlotte died nearly two centuries ago but is still celebrated in her namesake American city. Earth Sci. The bathymetry and acoustic-backscatter data are provided as GeoTIFFs with 10-m spatial res. Potential hydrocarbon source rocks include Upper Triassic-Lower Jurassic shales and limestones locally preserved below the basin and Tertiary shales within the deeper portions of the basin fill. Brown, Sutherland A. Accretionary wedge structures range from highly discontinuous to long and continuous. Secondary features can also be observed on Queen Charlottes fault. Charlotte would provide funding to prevent the hospital from closing. The Queen Charlotte Fault is an active transform fault that marks the boundary of the North American plate and the Pacific plate. The fault is named for the Queen Charlotte Islands (now Haida Gwaii) which lie just north of the triple junction. This magnitude 7.8 earthquake caused as much as 21 feet of horizontal movement and up to 3 feet of vertical movement and was felt as far south as Seattle, Washington. The goal of this research is to gain a better understanding of the Queen Charlotte-Fairweather Fault and its associated earthquake, tsunami, and underwater-landslide hazards. A few folds on the sea floor are observable on the photo provided by Google Earth. Queen Charlotte was born a German princess far away from the British crown. The Queen Charlotte's fault is often compared to the San Andreas fault. AK 99835 A team of geologists on a September expedition to map a major offshore earthquake fault north of Canada's Vancouver Island has discovered a surprising geologic feature deep beneath the waves: an. One such find, the South African flower, the Bird of Paradise, was named Strelitzia reginae in her honor. Updated on October 10, 2018. It is observed that the folds in Triassic and Jurassic rocks are oriented west and northwest. The world's largest earthquakes occur along this type of plate boundary. (Brown Preliminary Geological Map, 1), Figure 9: This illustration reveals the location of the different basins on the west coast of Canada, near Queen Charlotte's fault, that have the necessary conditions for gas and oil formation. [29], The 2012 magnitude 7.8 earthquake struck off the western coast of Haida Gwaii at around 8:10pm Pacific Time on Saturday 27 October. In 1761 she was selected unseen after the British king asked for a review of all eligible German Protestant princesses. A transform fault is a horizontal motion that occurs when two plates are forced to move along each other (see figure 2). The yellow start is the epicenter of the largest earthquake that occured in Canada (22nd August, 1945). (Brown Preliminary Geological Map,1), The study on Queen Charlotte Islands of the rocks from the Mesozoic era, from the Triassic period to the Cretaceous period, reveals the presence of basalt, limestone, volcanic sandstone, horneblende, garnite, quartz, amphibolites, argillite, shale, sharpstone, mica, and rhyolite among others. Faults dont stop at the shoreline, and they certainly dont stop at political boundaries, said Brothers. Alaska has more large earthquakes than the rest of the United States combined. The magnitude 7.8 Lituya Bay earthquake resulted from a 260-km long rupture of the Fairweather Fault in southeast Alaska, yet we know little about how often events of this size reoccur. The couples fourth eldest son was Edward, Duke of Kent, who later fathered Queen Victoria. Neotectonics of interior Alaska and the late Quaternary slip rate along the Denali fault system, Sculpted by water, elevated by earthquakesThe coastal landscape of Glacier Bay National Park, Alaska, Eastern Denali Fault surface trace map, eastern Alaska and Yukon, Canada. the transform Queen Charlotte Fault (QCF) south of Haida Gwaii (Figure 1). The current state of transpressive plate boundary systems results from spatial and temporal changes between both rheologic and kinematic parameters. Since the last revisions to the map for Alaska in 2007, scientists have made significant advances in understanding active faulting, fault slip rates, and fault behavior. The epicenter of this earthquake is found to be at the junction of the North America plate and the Pacific plate. Young structures underlie the slope from Middleton Island to Pamplona Spur, but are absent from Pamplona Spur to Cross Sound. By Katie Sewell 10:16, Tue, Apr 19, 2022 | UPDATED: 10:16, Tue, Apr 19, 2022 These oldest folds have wavelengths of 10-16 miles with amplitudes of 2-3 miles (, (Brown Bulletin 54, 156)The folds observed in all these rocks are all gentle (interlimb angle of 120-180 degrees). These data were collected between 2005 and 2018 under a cooperative agreement between the U.S. Geological Survey, Natural Resources Canada, and the National Oceanic and Atmospheric Administration. Sir Allan Ramsay is thought to have produced the most accurate representations. GLORIA images collected in 1989 along southeast Alaska and British Columbia strikingly show the active trace of the Fairweather-Queen Charlotte transform fault system beneath the outer shelf and slope; seismic-reflection data are used to track the fault system across the continental shelf where GLORIA data are not available. THE FAULT Queen Charlotte's fault, named after its located near Queen Charlotte's Islands in Canada, is a transform fault of approximately 700 km long (see figure 1). Brub, J., G. C. Rogers, R. M. Ellis, and F. O. Hasselgren (1989). She was the first queen to reside in Buckingham Palace (sort of). The blue arrows illustrate the acting forces and the red arrows illustrate the resulting motion. From Cross Sound to Pamplona Spur, dendritic gulley systems and short chutes cross the slope into tributary channels that, In an 81-day period during the summer of 969 four portable seismographs were operated in northwest British Columbia and southeast Alaska. USA, smartphone 907.747.8878 The formation of the Peters Hills basin is consistent with it being a wedge-top basin that formed on top of the active southeast-vergent Broad Pass thrust fault. She was a close friend of Queen Marie Antoinette. At the northern end of this fault system, the Fairweather fault marks the boundary between the North American plate and the Yakutat block, a small microplate in the hinge of Alaska. She was the second longest-serving consort in British history, after the present Duke of Edinburgh. Video Software we use: https://amzn.to/2KpdCQFAd-free videos.You can support us by purchasing something through our Amazon-Url, thanks :)The Queen Charlotte . Over the last 100 years, the Queen Charlotte-Fairweather fault system has produced large-magnitude earthquakes affecting both Canada and the U.S. To fill in missing details about its offshore location and structure, USGS uses sophisticated techniques to truly understand the faults hazard potential. Queen Charlotte with her Two Eldest Sons, Johan Zoffany, 1765. It is often referred to as the right lateral strike-slip equivalent to the San Andreas fault zone. Earth Sciences. The Mukluk and Horizon channels start along southeast Alaska and end 1,000 km away on the Tufts abyssal plain. Secure .gov websites use HTTPS A lock () or https:// means youve safely connected to the .gov website. Last edited on 15 February 2023, at 22:10, 1958 Lituya Bay earthquake and megatsunami, "An Abrupt Transition in the Mechanical Response of the Upper Crust to Transpression along the Queen Charlotte Fault", "Basement and Regional Structure Along Strike of the Queen Charlotte Fault in the Context of Modern and Historical Earthquake Ruptures", "Pacific-North America plate boundary reorganization in response to a change in relative plate motion: Offshore Canada", "Supershear rupture of the 5 January 2013 Craig, Alaska ( M w 7.5) earthquake: 2013 CRAIG EARTHQUAKE SUPERSHEAR RUPTURE", "Deformation of the Pacific/North America Plate Boundary at Queen Charlotte Fault: The Possible Role of Rheology", "Plate boundary localization, slip-rates and rupture segmentation of the Queen Charlotte Fault based on submarine tectonic geomorphology", "The Queen Charlotte Fault, British Columbia: seafloor anatomy of a transform fault and its influence on sediment processes", "Queen Charlotte Area Cenozoic tectonics and volcanism and their association with relative plate motions along the northeastern Pacific Margin", "Linking the Late Cretaceous to Paleogene Pacific plate and the Atlantic bordering continents using plate circuits and paleomagnetic data", "High-resolution reconstructions of PacificNorth America plate motion: 20 Ma to present", "Evidence for underthrusting beneath the Queen Charlotte Margin, British Columbia, from teleseismic receiver function analysis", "The October 2012 magnitude (Mw) 7.8 earthquake offshore Haida Gwaii, Canada", "Seismicity surveys with ocean bottom seismographs off western Canada", "The October 28, 2012 Mw 7.8 Haida Gwaii underthrusting earthquake and tsunami: Slip partitioning along the Queen Charlotte Fault transpressional plate boundary", "Plate Boundary Adjustments of the Southernmost Queen Charlotte Fault", "Seismic velocity structure of the Queen Charlotte terrace off western Canada in the region of the 2012 Haida Gwaii Mw 7.8 thrust earthquake", "Thermal Condition of the 27 October 2012 Mw 7.8 Haida Gwaii Subduction Earthquake at the Obliquely Convergent Queen Charlotte Margin", "Spatiotemporal Distribution of Events during the First Week of the 2012 Haida Gwaii Aftershock Sequence", "Source Characteristics of the 2012 Haida Gwaii Earthquake Sequence", "GPS Observations of Crustal Deformation Associated with the 2012 Mw 7.8 Haida Gwaii Earthquake", "Transpression between two warm mafic plates: The Queen Charlotte Fault revisited", "Rupture of a seismic gap in southeastern Alaska: the 1972 Sitka earthquake (Ms 7.6)", "A High Resolution Aftershock Catalog of the Magnitude 7.5 Craig, Alaska, Earthquake on 5 January 2013", "Earthquake Hazards in Southeastern Alaska", Haida Gwaii's Hotsprings Island showing signs of recovery, "Superquakes, supercycles, and global earthquake clustering: Recent research and recent quakes reveal surprises in major fault systems", Queen Charlotte-Fairweather Fault System Alaska Earthquake Information Center, https://en.wikipedia.org/w/index.php?title=Queen_Charlotte_Fault&oldid=1139589244. The Surveyor system begins between Pamplona Spur and Alsek Canyon and empties into the Aleutian Trench. Subduction Zone: A region where the earth's plates collide, with one plate sliding beneath the other. The Queen loved the residence so much, she started spending most of her time there, and it became known as The Queens House.. Harris, P.T., Barrie, J.V., Conway, K.W., Greene, G.H., 2014. Like the San Andreas fault, the Queen Charlotte-Fairweather Fault separates the Pacific tectonic plate from the North American plate. The Queen Charlotte Fault continues northward along the Alaskan coast where it is called the Fairweather Fault. After the king was declared insane (1811 . The San Andreas Fault Zone is not the only active transform plate boundary with U. S. National Park Service sites. Princess Sofia Charlotte was born May 19,1744, to Duke Charles Ludwig Friedrich of Mecklenburg-Strelitz and Princess Elisabeth Albertine of Saxe-Hildburghausen. 26, 25562566, CBC Newsworld, "7.7 Magnitude Quake Breaking News Special", airdate: 2728 October 2012. Below are publications associated with this project. More than three-quarters of the states population live in an area that can experience a magnitude 7 earthquake. ; (United States). Large anticlines lie seaward of and trend parallel to the fault. - Bull. In 2015, U.S. Geological Survey scientists in collaboration with scientists from other institutions began a study of the Queen Charlotte faultthe first systematic study of the fault in more than three decades. Study with Quizlet and memorize flashcards containing terms like Draw a map of an idealized tectonic plate and explain the earthquake hazards along each type of plate edge:, Sketch a map of the Arabian plate and explain the origin of the Iranian Holy Land, and Turkey earthquakes:, Explain why earthquakes at subduction zones are many times more powerful than spreading-center earthquakes: and more. [5] Deformation largely occurs on what appears to be a single strike-slip structure. Charlotte, meanwhile, became her husbands legal guardian, which placed her under a great deal of stress. In subsequent research expeditions (two in 2016, one in summer 2017, and another in fall 2017), additional data were collected along the underwater Queen Charlotte Fault. Systematic mapping of the ocean-continent transform plate boundary of the Queen Charlotte fault system, southeastern Alaska and western British ColumbiaA preliminary bathymetric terrain model, A bathymetric terrain model of multibeam data collected between 2005 and 2018 along the Queen Charlotte Fault System in the Eastern Gulf of Alaska from Cross Sound, Alaska to Queen Charlotte Sound, Canada, Multibeam bathymetry and acoustic-backscatter data collected in 2015 near Cross Sound, southeast Alaska, during field activity 2015-629-FA, Multibeam bathymetric and backscatter data collected in the eastern Gulf of Alaska along the Queen Charlotte Fault, U.S. Geological Survey Field Activity 2016-625-FA, Multibeam bathymetry and acoustic-backscatter data collected in 2017 and 2018 of Noyes Submarine Canyon and vicinity, southeast Alaska, 2885 Mission Street most numerous seismic events recorded, numbering in the thousands, were low-frequency events emanating from a number of specific areas where large glaciers are located. We map the 385-kilometer (km) long surface trace of the right-lateral, strike-slip Denali Fault between the Totschunda-Denali Fault intersection in Alaska, United States and the village of Haines Junction, Yukon, Canada. In addition, Since then, three different research vessels have collected more than 16,000 square kilometers of new high-resolution multibeam sonar on both the U.S. and Canadian portions of the fault, in depths ranging from 0 to 2,271 meters. A .gov website belongs to an official government organization in the United States. Seismol. Overall, the study leads to the conclusion that the fault occurs in sedimentary and volcanic rocks, since they are the most common rocks on the islands. Later, Mozart would dedicate his Opus 3 piece to the Queen. Below are other science projects associated with this project. The fault zone then became the mainly transcurrent Pacific-North America boundary. [28] Combined with other observations along the fault, this behavior implies that there may be a critical angle of obliquity within the simple shear regime at which distributed shear across multiple structures is not sustainable, and deformation can be more easily accommodated on a single structure.The fault has been the source of large, very large, and great earthquakes. "Queen Charlotte has been such a moving character to write and now having the opportunity to work with Julia to adapt this story into a book is such an exciting opportunity," Rhimes said in a . Although there are problems with biases in earthquake The red line represents a wavelength. Woods Hole, MA 02543 The P nodal focal mechanism for the 1949 earthquake indicates a virtually pure strike-slip movement with a northwest-striking nodal plane corresponding to the strike of the fault. Alaska has more large earthquakes than the rest of the United States combined. Southeast of Florida, the Caribbean Plate is sliding east-northeast about 0.8 inches (2 centimeters) per year relative to the North American Plate. ", "Magnitude 7.7 Queen Charlotte Islands Region.". This type of fault is usually connected on both ends to other faults, ridges or to subduction zones. In fact, there are places all over the world named in her honor from Queen Charlotte Sound in New Zealand, to Queen Charlotte Bay in West Falkland, to Charlottesville, Virginia. While Mt. Subsidence of ocean plate now adjacent to the Chatham Strait-Dixon Entrance fault segment initiated development of both Mukluk and Horizon Channels. The Food Web Cruise is a great opportunity to experience that first breath of spring on. southeast Alaska show a southeastward age progression from older to younger and record both point source deposition at Chatham Strait and Dixon Entrance and subsequent (Quaternary ) offset along the fault system. Geologic hazards not necessarily related to earthquakes include (1) occasional . (Brown Bulletin 54, 153) For instance, Canadas largest earthquake occurred the 22nd of August 1945, an earthquake of magnitude 8.1 occurred near Prince Rupert city; its study revealed a lot about the nearby fault. canyons and sediment transport channels on the slope and adjacent abyssal plain. Figure 3: Thie figure illustrates the relative motion of the Pacific plate, the North America plate and Juan de Fuca plate. But in the late 18th century Queen Charlotte, wife of King George III (1738-1820), may have been the countrys first multiracial royal. The Queen Charlotte Fault Zone (QCFZ) off western Canada is the northern equivalent to the San Andreas Fault Zone, the Pacific-North American plate boundary. The older (pre-Pliocene) portions of the basin locally contain volcanics, often interbedded with clastics. Satellite measurements indicate that during the past few decades the Yakutat microplate has moved northwest at a rate of nearly 5 centimeters per year relative to the North Ameri. United States, 4210 University Drive Alerts were sent across the Pacific Basin. The fault system crosses the shelf from Icy Point to south of Yakobi Valley, then follows the shelf edge to Chatham Strait. GLORIA mosaic of the Gulf of Alaska and the British Columbia margin: Deep-sea channels, margin deformation, and the Queen Charlotte fault, Sedimentary depositional environments in the Gulf of Alaska from GLORIA Imagery, Microearthquake survey in northwest British Columbia and southeast Alaska, Recent acoustic studies of western Canadian continental margin, The geology and petroleum potential of the Queen Charlotte Basin, Pacific Continental Margin, Canada, Univ. The, A regional survey of the western Canadian continental margin from the central Queen Charlotte Island, 52/sup 0/40'N, to the Strait of Juan de Fuca, 47/sup 0/40'N, has been completed with the acoustic imaging system SeaMARC II. Specifically, these investigations include (1) acquisition and interpretation of remotely sensed topographic data, including lidar, satellite imagery and legacy aerial photography; (2) mapping of tectonic geomorphology and active traces of the southern Fairweather Fault; and (3) investigation of earthquake recurrence intervals, slip-per-earthquake, and style of deformation through field investigations that include paleoseismic trenching where practicable. She had a dysfunctional family. [4] It sustains the highest known deformation rates among continental or continent-ocean transform systems globally, accommodating greater than 50mm/yr dextral offset. The two faults create the boundary between the North America and Pacific tectonic plates. Portrait of King George III and Queen Charlotte of the United Kingdom. She is the grandmother of Queen Victoria and the great-great-great-great-grandmother of the current Queen Elizabeth II. Cascadia Subduction Zone (CSZ) and transitions into the Queen Charlotte Fault. Though the two never actually me, they corresponded frequently. She hung out with Mozart. Possible hydrocarbon traps include folds, rollover anticlines, basement fault blocks, and a variety of combined structural-stratigraphic traps. The Hinge point being at the top of the anticline. The Queen Charlotte Fault Zone (QCFZ) off western Canada is the northern equivalent to the San Andreas Fault Zone, the Pacific-North American plate boundary. 24, causing a magnitude 7.4 quake to hit the offshore Haida Gwaii region. Jeffery in 1958-59. Geomorphologic expression and surface processes associated with the QCFZ system have been revealed in unprecedented detail by recent seabed mapping surveys. The Queen Charlotte-Fairweather fault system is the counterpart to the San Andreas fault in California. [4] [19] Several recent studies based on seismicity, GPS observations of coseismic and postseismic deformation, and thermal modeling support the presence of a shallow plate boundary thrust. Much of our work is focused on observing the earth from beneath the oceans, using tools like ocean bottom seismometers, sonar mapping systems, marine seismic imaging tools, and other geophysical techniques. The earthquake was felt at Jasper, over six hundred miles away. The fault steps westward at Tuzo Wilson Knolls, which likely is a spreading ridge segment. Queen Charlotte in the studio of Allan Ramsay, oil on canvas, (1762). Landslides, housing and infrastructure damage, Landslide, megatsunami (524m), housing and infrastructure destruction, 5 casualties, This page was last edited on 15 February 2023, at 22:10. But the Queen intervened to ensure Charlotte would not be known as 'Lady Charlotte', according to a royal historian. Briefly, the Cascadia subduction zone is the region where the Juan De Fuca plate is moving towards/under the North America plate. [3] Figure 1: Queen Charlotte's fault as seen from space. The fault has been difficult to study because it is located almost entirely offshore in water depths of greater than 500 feet. Charlotte then became Queen of the United Kingdom of Great . 2012 - 7.7 magnitude When a. The Queen Charlotte Fault, British Columbia: seafloor anatomy of a transform fault and its influence on sediment processes. Dear Mrs. Meryem Berrada, Share sensitive information only on official, secure websites. It is Canada's right-lateral strike-slip equivalent to the San Andreas Fault to the south in California. The shaking of the ground near an earthquake source made up of potentially damaging seismic waves of various types. This data publication is a compilation of six different multibeam surveys covering the previously unmapped Queen Charlotte Fault offshore southeast Alaska and Haida Gwaii, Canada. Figure 4: Combination of reverse and strike-slip faulting. [3][8] Through geologic time, a change in pacific plate motion beginning as recently as approximately 6 Ma[11] or as early as approximately 12 Ma[12] caused an increase in convergence along the entire length of the fault and initiated underthrusting[13] along the southern segment where convergence is highest,[2] a process that ultimately led to the 2012 Haida Gwaii thrust earthquake. Strain partitioning in southeastern Alaska: Is the Chatham Strait Fault active? [24][8] There is a distinct structural transition due to a change in the stress regime from pure shear in the southern QCF segment to simple shear in the central QCF segment as a result of convergence decreasing below a critical angle of approximately 15.[8]. Also, the Queen Charlotte-Fairweather fault system is the region known as the junction of Queen Charlottes Fault and the Fairweather fault along the Alaskan coast. The Queen Charlotte Fault forms a triple junction south with the Cascadia subduction zone and the Explorer Ridge (the Queen Charlotte Triple Junction). From Cross Sound to Chatham Strait, the fault system is comprised of two sets of subparallel fault traces separated by 3 to 6 km. The beddings vary from a layer of volcanic rocks to a layer of sedimentary rocks, followed by an unconformity, a layer of sedimentary rocks, and a younger layer of volcanic rocks. Southwest of Middleton Island, discontinuous trench-parallel subduction ridges change slope drainage from a dendritic to trellised pattern as sediment is forced to flow around the ridges to the Aleutian Trench. These two plates move at a rate of~5cm yr 1 relative to each other [DeMets et al., 2010]. [3] The Queen Charlotte Fault forms a triple junction south with the Cascadia subduction zone and the Explorer Ridge (the Queen Charlotte Triple Junction). Her royal subjects knew nothing about her racial background. The marriage was a success, and the couple had 15 children, including George IV. magnitude 8.1 Queen Charlotte Islands earthquake of August 22, 1949, 2. which occurred along the Queen Charlotte fault 125 mi (200 km) southwest of Metlakatla. In the core of the orogen,250 km from the transform, north striking, dipslip brittle faults and vertical axis rotation of large crustal domains occurred after 50 Ma and before intrusion of mafic dikes at 20 Ma. The data set consists of radiocarbon dates analyzed at the National Ocean Sciences Accelerator Mass Spectrometry Facility. Figure 6: Fold systems along rocks from the Triassic, Jurassic, Cretaceous and Tertiaty periods. We are conducting comprehensive onshore and offshore geologic and geophysical investigations to fully characterize the seismic potential of the Queen Charlotte-Fairweather Fault system in southeast Alaska. Even Rutgers, The State University of New Jersey, was originally chartered as Queens College after Charlotte, though it was renamed in 1825 after Henry Rutgers, a hero in the Revolutionary War. A re-examination of the August 22, 1949 Queen Charlotte earthquake. The Queen Charlotte fault is the offshore portion of the Queen Charlotte-Fairweather Fault, In 2015, U.S. Geological Survey scientists in collaboration with scientists from other institutions began a study of the Queen Charlotte faultthe first systematic study of the fault in more than three decades. Southeastern alaska: is the counterpart how was the queen charlotte fault made the fault steps westward at Tuzo Wilson,... Usually connected on both ends to other faults, ridges or to subduction zones along other! Folds in Triassic and Jurassic rocks are oriented west and northwest Bird of Paradise, named... Of king George III and Queen Charlotte Islands ( now Haida Gwaii region ``. Current state of transpressive plate boundary systems results from spatial and temporal changes between rheologic! Globally, accommodating greater than 500 feet the great-great-great-great-grandmother of the largest earthquake that occured in Canada 22nd. That first breath of spring on and Alsek Canyon and empties into the Queen fault. Analyzed at the shoreline, and a variety of combined structural-stratigraphic traps to. Occurs when two plates move at a rate of~5cm yr 1 relative to each [... This earthquake is found to be a single strike-slip structure offshore in water depths of greater 50mm/yr! Seabed mapping surveys to the San Andreas fault to the fault system, runs along the coast! Folds, rollover anticlines, basement fault blocks, and the Pacific,. 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Secure websites can experience a Magnitude 7.4 Quake to hit the offshore Haida Gwaii ) lie...: fault system is the region where the Juan de Fuca plate is moving towards/under the North American and!, became her husbands legal guardian, which placed her under a great opportunity to that... Plates move at a rate of~5cm yr 1 relative to each other ( figure! Zone: a region where the Earth & # x27 ; s plates collide, with one plate beneath... Only on official, secure websites the other most accurate representations been revealed in unprecedented detail by seabed. Earthquake that occured in Canada ( 22nd August, 1945 ) United,... R. M. Ellis, and the great-great-great-great-grandmother of the States population live in area... Fault active of and trend parallel to the.gov website are oriented west and northwest is. Queen Charlotte-Fairweather fault system, runs along the western coast of the Islands Haida! That can experience a Magnitude 7.4 Quake to hit the offshore Haida ). ( CSZ ) and transitions into the Queen Charlotte with her two eldest Sons Johan. Figure 7: fault system near Queen Charlotte fault is often compared to south! To study because it is called the Fairweather fault continues northward along the Alaskan coast it. System is the epicenter of this earthquake is found to be a single strike-slip structure Queen Marie..

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