Though born in Germany and a princess of Mecklenburg-Strelitz, Charlotte was directly descended from an African branch of the Portuguese Royal House. The fault steps westward at Tuzo Wilson Knolls, which likely is a spreading ridge segment. Research in this lab considers scales spanning the shallow subsurface to the lithosphere. At least two small fans have been constructed on the trench floor. These data, combined with single-channel and multichannel seismic reflection data, reveal many new insights concerning the deep structure of the subduction margin off Vancouver Island. More than three-quarters of the states population live in an area that can experience a magnitude 7 earthquake. No need to be fancy, just an overview. 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. In fact, according to Rhimes, who is . 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. [5] The same location also marks earthquake rupture boundaries between the 2013 Craig event[25] and the 1972 M7.6 Sitka event,[26][27] as well as the inferred intersection of the Chatham Strait Fault and the Aja Fracture Zone (FZ) with the Queen Charlotte Fault; the Aja FZ also marks an approximately 3 million year contrast in Pacific Plate crustal age. Charlotte of Mecklenburg-Strelitz (Sophia Charlotte; 19 May 1744 - 17 November 1818) was Queen of Great Britain and of Ireland as the wife of King George III from their marriage on 8 September 1761 until her death in 1818. Portrait of the British queen consort Charlotte of Mecklenburg-Strelitz. In California, the San Andreas Fault is the plate boundary, running east of Los Angeles and west of San Francisco, but in actuality the plate boundary is diffuse and spreads as far east as Salt Lake City, Utah as part of the Basin and Range. Pet. 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. Wed 11 Mar 2009 20.01 EDT. Ward said the area is known as the Queen Charlotte fault, where the earth's plates slide horizontally across each other in a strike-slip action, similar to what happens along California's San . 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 current state of transpressive plate boundary systems results from spatial and temporal changes between both rheologic and kinematic parameters. Earth Sci. [7] The two segments are collectively called the Queen Charlotte-Fairweather Fault System. (Earthquake). the southeast Alaska transform margin the Queen Charlotte fault is imaged as a narrow linear feature. The USGS and numerous collaborators began mapping the fault in detail in 2015. 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 We can think of this fault system as the San Andreas of the north, said USGS Research Geophysicist Danny Brothers, a lead author of the publications. Marine geophysical mapping of the Queen Charlotte Fault in the eastern Gulf of Alaska was conducted in 2016 as part of a collaborative effort between the U.S. Geological Survey and the Alaska Department of Fish and Game to understand the morphology and subsurface geology of the entire Queen Charlotte system. [32] Recent detailed seafloor mapping has revealed the expression of the Queen Charlotte Fault on the seafloor,[33] including the truncation of submarine canyons that occur along the continental slope.[34]. Create your own unique website with customizable templates. In this case, Plate 1 illustrates a motion similiar to that of the Pacific plate, and Plate 2 illustrates that of the North America plate. 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. ; (United States). The Queen Charlotte Fault (QCF) is a transform fault that separates the Pacific plate and the North American plate. [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]. 834 Lincoln Street Sitka 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. Transform faults do not just connect divergent boundaries. [4] This is similar to the 1970 earthquake, which also showed a strike-slip movement with a small but significant thrust component, consistent with relative plate motion. 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. Aftershocks as large as 6.3 magnitude were reported. It is observed that the folds in Triassic and Jurassic rocks are oriented west and northwest. Based on information provided in Module 4.5, this ''area'' (Northern BC) is no longer in a seismic gap zone. 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). While Mt. These files provide the complete data release for the paper entitled, "Geomorphic expression and slip rate of the Fairweather fault, southeast Alaska, and evidence for predecessors of the 1958 rupture." The red line represents a wavelength. In reverse faulting, the dip direction is towards the hanging wall - in this case the North America plate. Although most of the plate motion isaccommodated by the right-lateral Queen CharlotteFairweather Fault (QCFF) System, which has produced at least six M>7 earthquakes since 1920, The neotectonics of southern Alaska (USA) are characterized by a several hundred kilometerswide zone of dextral transpressional that spans the Alaska Range. (Sedimentary), Queen Charlottes fault, named after its located near Queen Charlottes Islands. The Fairweather fault is visible on land for about 170 miles from Cross Sound to its junction with the St. Elias fault near Yakutat Bay. (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. USA, smartphone 907.747.8878 The Queen Charlotte Fault, British Columbia: seafloor anatomy of a transform fault and its influence on sediment processes In 1761, when she turned 17, Princess Sophia was betrothed rather unexpectedly to the King of . . [5] The entire approximately 900km offshore length has ruptured in seven greater than magnitude 7 events during the last century, making the cumulative historical seismic moment release higher than any other modern transform plate boundary system.[6]. Previous models for the accommodation of transpression include internal deformation of both plates adjacent to the plate boundary or oblique subduction of the oceanic plate; the latter has The QCF formed off the west coast of the islands of Haida Gwaii upon the termination of margin subduction in the Eocene. Though the two never actually me, they corresponded frequently. The North American Plate is made of continental crust, and the Pacific Plate is made of oceanic crust. Brown and W.J Jeffery in 1958-59 displays the location and age of the observed rocks, the beddings, foliation, fold axes, faults, contact and contour interval of 1000ft (. Below are data and web tools related to this project. She was the second longest-serving consort in British history, after the present Duke of Edinburgh. Between Chatham Strait and Dixon Entrance, a single, sharply defined active fault trace underlies the upper and middle slope. It is Canada's right-lateral strike-slip equivalent to the San Andreas Fault to the south in California. In addition, the strike-slip motion of the Pacific and North America plate causes shearing in the northwest direction. The primary goal of the study was to gain a better understanding of the earthquake, tsunami, and underwater-landslide hazards throughout southeastern Alaska, as well as gather data to devel, 12201 Sunrise Valley Drive Reston, VA 20192, Woods Hole Coastal and Marine Science Center, Alaska Department of Fish and Game (ADFG), Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 12: Pacific Islands (American Samoa, Hawaii, Guam, Commonwealth of the Northern Mariana Islands), Coastal and Marine Hazards and Resources Program, began mapping the fault in detail in 2015, Fairweather fault, the terrestrial portion of this tectonic system, EXPRESS (Expanding Pacific Research and Exploration of Submerged Systems), Earthquake Hazards in Southeastern Alaska, Pacific Coastal and Marine Science Center, EXPRESS: Expanding Pacific Research and Exploration of Submerged Systems, Core Preparation and Analysis Laboratory and Sample Repositories, Characterizing the Active Queen Charlotte-Fairweather Fault System, Coastal and Marine Hazards and Resources Program News, Pacific Coastal and Marine Science Center News, Woods Hole Coastal and Marine Science Center News. the transform Queen Charlotte Fault (QCF) south of Haida Gwaii (Figure 1). The fault steps westward at Tuzo Wilson Knolls, which are likely part of a spreading ridge segment. [5] Deformation largely occurs on what appears to be a single strike-slip structure. In Alaska, digital elevation models based on light detection and ranging and interferometric synthetic aperture radar data enabled our fault mapping at scales of 1:2,000 and 1:10, 12201 Sunrise Valley Drive Reston, VA 20192, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 12: Pacific Islands (American Samoa, Hawaii, Guam, Commonwealth of the Northern Mariana Islands), A bathymetric terrain model of multibeam sonar 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, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Multibeam bathymetry and acoustic-backscatter data collected in 2017 and 2018 of Noyes Submarine Canyon and vicinity, southeast Alaska, Pacific Coastal and Marine Science Center, Multibeam bathymetry and acoustic-backscatter data collected in 2015 near Cross Sound, southeast Alaska, during field activity 2015-629-FA, Radiocarbon Data for Fairweather Fault Investigation, Glacier Bay National Park, Southeast Alaska (2021), Multibeam bathymetry and backscatter data collected in the eastern Gulf of Alaska during USGS Field Activity 2016-625-FA using a Reson 7160 multibeam echosounder, 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, Geomorphic expression and slip rate of the Fairweather fault, southeast Alaska, and evidence for predecessors of the 1958 rupture, The Peters Hills basin, a Neogene wedge-top basin on the Broad Pass thrust fault, south-central Alaska, Groundwater and Streamflow Information Program. The purpose of the proposed study is to characterize an approximately 450-km segment of the fault that encompasses systematic variations in key parameters in space and time: (1) Changes in fault obliquity relative to Pacific-North American plate motion leading to increased convergence from north to south; (2) Pacific plate age and theoretical The heat flow pattern from the deep sea across the Queen Charlotte Terrace to the west coast of the Queen Charlotte Islands has been determined through 20 marine heat flow measurements and by 11 borehole measurements at one land site. She came into the world on May 19, 1744, as Sophia Charlotte of Mecklenburg-Strelitz, a northern German territory that at the time was part of the Holy Roman Empire. 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. 1 inset). Movement along this thrust raised a ridge of Jurassic and Cretaceous m, A 1200 km-long transform plate boundary passes through southeastern Alaska and northwestern British Columbia and represents one of the most seismically active, but poorly understood continental margins of North America. 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. . The second quake, just 200 miles to the north, generated a magnitude 7.5 event offshore of Craig, Alaska, rupturing a 70-mile long stretch of the fault. - Bull. 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 . A team of USGS scientists spent 10 days in the wilderness, exploring one of the fastest-moving faults in America. The fault has been difficult to study because it is located almost entirely offshore in water depths of greater than 500 feet. Large anticlines lie seaward of and trend parallel to the fault. A 45-cm tsunami was reported locally. 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. [18] This hypothesis is also supported by the morphology of the Queen Charlotte Terrace, an approximately 30km-wide deformed accretionary prism-like complex west of the main QCF trace. The yellow start is the epicenter of the largest earthquake that occured in Canada (22nd August, 1945). 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. Sir Allan Ramsay is thought to have produced the most accurate representations. : I dont think a prisoner could wish more ardently for his liberty than I wish to be rid of my burden and see the end of my campaign. We are fortunate to have a strong partnership with Natural Resources Canadas Geological Survey of Canada, so that we can examine the fault system in its entirety." [5] There are various mechanisms proposed to accommodate oblique convergence along the QCF, this include underthrusting and strain partitioning,[2] crustal thickening,[10] and distributed shear. She was the second longest-serving consort in British history, after the present Duke of Edinburgh. Picture provided by Google Earth application. [31], The 2012 quake was remarkable for having been a thrust, rather than strike-slip, tremor, more like the mechanism of the Cascadia Subduction Zone to the south. "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 . The epicenter of this earthquake is found to be at the junction of the North America plate and the Pacific plate. The red arrows illustrate the resulting plates movement. The blue plane illustrates the axial plane. Along, GLORIA side-scan images provide new insight to the morphology and sedimentology of the Gulf of Alaska and show that tectonism strongly influences downslope and abyssal plain sediment transport. 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 deep sea values . Below are news stories associated with this project. Edgecumbe has been inactive for 800 to 900 years, scientists have noted some signs that it could be coming back to life. The Queen Charlotte-Fairweather Fault extends more than 1,200 kilometers (750 miles) from offshore of Vancouver Island, Canada, to the Fairweather Range of southeast Alaska. Am. 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. The heat flow in the Queen Charlotte Basin has been calculated to be 695 mW/m 2. The earthquake was felt at Jasper, over six hundred miles away. Queen Charlotte was born a German princess far away from the British crown. Dear Mrs. Meryem Berrada, On figure 1, we can see the west coast of Canada, the boundary with the United States of America and a small portion of Alaska. [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. She is the grandmother of Queen Victoria and the great-great-great-great-grandmother of the current Queen Elizabeth II. In 1765, King George became mentally ill. (Its now believed that he was suffering from porphyria, an inherited disorder stemming from the buildup of certain chemicals in the brain, but at the time the cause of his illness was unknown.). A recently completed series of data publications led by the U.S. Geological Survey represents the first time the fault has been mapped using comprehensive, high-resolution marine geophysical approaches. The basin formed during Eocene to Pliocene extension along and adjacent to a transform segment of the Pacific-North American plate boundary. 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. "Chapter Four: Structural Geology. AK 99835 AK The QCF is a trans-form boundary between the Pacic plate and the North American plate. . On the abyssal plain off the Shumagin margin inherited structural and bathymetric features trend parallel to magnetic anomalies, and trench parallel features reflect faulting as the ocean plate bends into the trench. Read another story from us:The life of Mary Queen of Scots Married 3 times, imprisoned and her untimely end. Charlotte, original name Charlotte Sophia of Mecklenburg-Strelitz, (born May 19, 1744died November 17, 1818), queen consort of George III of England. I would be happy if I knew this was the last time, she would write in 1780 about her pregnancy with her 14th child, Prince Alfred, according to Janice Hadlows The Strangest Family: The Private Lives of George III, Queen Charlotte, and the Hanoverians. Sophia Charlotte, born on May 19, 1744, was the eighth child of Charles Louis Frederick, the Prince of Mirow, Germany, and his wife, Elisabeth Albertina. Introduction 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. Although there are problems with biases in earthquake Digital, The Neogene Peters Hills basin is a small terrestrial basin that formed along the south flank of the Alaska Range during a time in which there was regional shortening. But in the late 18th century Queen Charlotte, wife of King George III (1738-1820), may have been the countrys first multiracial royal. In a move that shocked everyone, George chose unassuming, humble Charlotte to be his bride. She Became Queen When George III took the British throne on October 25, 1760, everyone held their breath as the newly-crowned king decided on his queen. The Yakutat transition margin is either extensively cut by dendritic drainages or, at sea-valley mouths, covered by glacially derived sediment. Soc. [3] The Queen Charlotte Fault forms a triple junction south with the Cascadia subduction zone and the Explorer Ridge (the Queen Charlotte Triple Junction). Because earthquakes carry on right through international political boundaries, collecting offshore geological data and developing accurate hazard assessments for the U.S. and Canada required an internationalpartnership. Charlotte was a decade older than the tragic Queen of France, yet they struck up a friendship over a shared love of music and the arts. Geologic hazards not necessarily related to earthquakes include (1) occasional . 24, causing a magnitude 7.4 quake to hit the offshore Haida Gwaii region. By Katie Sewell 10:16, Tue, Apr 19, 2022 | UPDATED: 10:16, Tue, Apr 19, 2022 [4] It sustains the highest known deformation rates among continental or continent-ocean transform systems globally, accommodating greater than 50mm/yr dextral offset. Prince Louis and Princess Charlotte's duties for the Coronation have been made public as George takes center stageOn May 6, King Charles will be crowned, and. Figure 2: Strike-slip fault. (Fossen, 224) This suggests that the forces causing the folds were equivalent from Triassic to Tertiary period. Official websites use .gov 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. The pair remained married for nearly 60 years. The part of California west of the San Andreas Fault and all of Baja California are on the Pacific Plate. The Chatham Strait fault showed no activity, and only a few events were located in the Quaternary volcanic zone of British Columbia. In the northern segment, which bore the epicenter of the strike-slip 2013 Craig earthquake, bathymetric data suggests that the ridge-basin complex gives way to simpler fault morphology. As explained before, Queen Charlotte's fault is located between the Alaska subduction zone, which is illustrated by the dark contour on the northest of the continent, and the Cascadia subduction zone, which starts near Vancouver island. The Queen Charlotte Fault lies between the North American Plate and the Pacific Plate. The Mukluk and Horizon channels start along southeast Alaska and end 1,000 km away on the Tufts abyssal plain. Below are publications associated with this project. Additional partners include EXPRESS (Expanding Pacific Research and Exploration of Submerged Systems), University of Calgary, NOAA Hydrographic Services Division, Sitka Sound Science Center, Alaska Department of Fish and Game, and the National Science Foundation. When she arrived in England to . No damage was reported at Metlakatla. Alaska has more large earthquakes than the rest of the United States combined. The Queen Charlotte Fault is an active transform fault that marks the boundary of the North American and the Pacific Plates. The Food Web Cruise is a great opportunity to experience that first breath of spring on. A lock () or https:// means youve safely connected to the .gov website. email information@sitkascience.org, WednesdaySaturday A probable ancestral Chirikov channel carried sediment westward to the Aleutian Trench, Channels from Alsek Valley to Pamplona Spur coalesce 280 km seaward of the slope to form the Surveyor Channel which meanders across the abyssal plain 500 km to the Aleutian trench. The blue arrows illustrate the acting force. Subsidence of ocean plate now adjacent to the Chatham Strait-Dixon Entrance fault segment initiated development of both Mukluk and Horizon Channels.less, GLORIA images collected from 1986 to 1989 show sea-floor morphology from the shelf break seaward to 400 km in the Gulf of Alaska and a 70-km-wide swath along British Columbia. The series will center on the queen's younger years when she arrives in London before she earns the power and prominence that we see her wield in Bridgerton. Alas, it never came to be. Explorers, such as Captain James Cook, would bring the Queen something of an amateur botanist new species of plants, which she displayed and expanded in her gardens. [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. The second quake, just 200 miles to the north, generated a magnitude 7.5 event offshore of Craig, Alaska, rupturing a 70-mile long stretch of the fault. It occurred on the Queen Charlotte Fault (Canada's equivalent of the San Andreas Fault) - the boundary between the Pacific and North American plates that runs underwater along the west coast of the Haida Gwaii (formerly Queen Charlotte Islands) off the west coast of British Columbia. In the north the boundary is defined by the 300 km-long onshore Fairweather Fault, which steps offshore at Icy Point and becomes the Queen Charlotte Fault (QCF) for the remaining 850 km southward to the vicinity of the Queen Charlotte triple junction (Fig. Title, Glacier Bay National Park & Preserve The world's largest earthquakes occur along this type of plate boundary. Queen Charlotte (born Sophia Charlotte of Mecklenberg-Strelitz) was the Queen of England from 1761-1818. Geomorphologic expression and. The Hinge point being at the top of the anticline. She hung out with Mozart. Her royal subjects knew nothing about her racial background. (Brown Bulletin 54, 38) Among a variety of sedimentary and plutonic rocks, an important amount of volcanic rocks is mostly found in the southern islands. However, the folds observed on sedimentary rocks near the fault zone are overturned folds and steeper. The springs seemed to have returned to borderline normal functioning as of July 2014. In Browns article, they are compared to wraped panels of volcanic rock. Below are other science projects associated with this project. Here, some other facts about this most unusual womans life: She had fifteen children, thirteen of whom survived to adulthood. , The data set consists of radiocarbon dates analyzed at the National Ocean Sciences Accelerator Mass Spectrometry Facility. From the beginning, this project has been a joint effort between Canada and the United States. Clearly evident in the imagery are the deformation of sediments at the base of the slope, the surface expression of seismically active faults, the mass wasting of sediment frequently observed at the base of the slope, and the erosional, The Queen Charlotte basin is a 40,000 km{sup 2} late Paleogene-Neogene basin underlying the Queen Charlotte Islands, Hecate Strait, and Queen Charlotte Sound region of the Canadian Pacific continental margin. A .gov website belongs to an official government organization in the United States. For example, the mountain experienced a small swarm of . 2012 - 7.7 magnitude When a. 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. ", "Magnitude 7.7 Queen Charlotte Islands Region.". Impressive, to be sure, but being pregnant for a good part of her marriage weighed on the Queen. Share sensitive information only on official, secure websites. To the north, three turbidite systems drain the margin. Our approach interrogates lidar data and satellite imagery, applies paleoseismological methods to examine earthquake history, and leverages partnerships with USGS scientists from Colorado and California, the National Park Service, NOAA, and the Army Corps of Engineers Cold Regions Research and Engineering Laboratory. An active strike-slip boundary similar to Californias San Andreas fault, the Queen Charlotte Fault has produced five magnitude-7-and-higher earthquakes in the last 100 years and presents the greatest earthquake hazard to residents of southeast Alaska and western British Columbia.