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Great Alaskan Earthquake
The 1964 Alaskan earthquake, also known as the Great Alaskan earthquake and Good Friday earthquake, occurred at 5:36 PM AKST on Good Friday, March 27.US Geological Survey report on the earthquake Across south-central , ground fissures, collapsing structures, and s resulting from the earthquake caused about 131 deaths. Lasting four minutes and thirty-eight seconds, the magnitude 9.2 |
Anchorage, Alaska
Anchorage () is the largest city in the U.S. state of Alaska by population. With a population of 291,247 in 2020, it contains nearly 40% of the state's population. The Anchorage metropolitan area, which includes Anchorage and the neighboring Matanuska-Susitna Borough, had a population of 398,328 in 2020, accounting for more than half the state's population. At of land area, the city is the fourth-largest by area in the United States and larger than the smallest state, Rhode Island, which has . Anchorage is in Southcentral Alaska, at the terminus of the Cook Inlet, on a peninsula formed by the Knik Arm to the north and the Turnagain Arm to the south. In September 1975, the City of Anchorage merged with the Greater Anchorage Area Borough, creating the Municipality of Anchorage. The municipal city limits span , encompassing the urban core, a joint military base, several outlying communities, and almost all of Chugach State Park. Because of this, less than 10% of the Municipalit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquake Engineering
Earthquake engineering is an interdisciplinary branch of engineering that designs and analyzes structures, such as buildings and bridges, with earthquakes in mind. Its overall goal is to make such structures more resistant to earthquakes. An earthquake (or seismic) engineer aims to construct structures that will not be damaged in minor shaking and will avoid serious damage or collapse in a major earthquake. Earthquake engineering is the scientific field concerned with protecting society, the natural environment, and the man-made environment from earthquakes by limiting the seismic risk to socio-economically acceptable levels. Traditionally, it has been narrowly defined as the study of the behavior of structures and geo-structures subject to seismic loading; it is considered as a subset of structural engineering, geotechnical engineering, mechanical engineering, chemical engineering, applied physics, etc. However, the tremendous costs experienced in recent earthquakes have led to an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seward, Alaska
Seward (Alutiiq: ; Dena'ina: ''Tl'ubugh'') is an incorporated home rule city in Alaska, United States. Located on Resurrection Bay, a fjord of the Gulf of Alaska on the Kenai Peninsula, Seward is situated on Alaska's southern coast, approximately by road from Alaska's largest city, Anchorage. With a population of 2,717 people as of the 2020 census, Seward is the fourth-largest city in the Kenai Peninsula Borough, behind Kenai, Homer, and the borough seat of Soldotna. The city is named for former U.S.A Secretary of State William H. Seward, who orchestrated the United States' purchase of Alaska from the Russian Empire in 1867 while serving in this position as part of President Andrew Johnson's administration. Seward is the southern terminus of the Alaska Railroad and the historic starting point of the original Iditarod Trail to Interior Alaska, with Mile 0 of the trail marked on the shoreline at the southern end of town. History In 1793, Alexander Baranov of the She ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whittier, Alaska
Whittier is a city at the head of the Passage Canal in the U.S. state of Alaska, about southeast of Anchorage, Alaska, Anchorage. The city is within the Chugach Census Area, Alaska, Chugach Census Area, one of the two entities established in 2019 when the former Valdez–Cordova Census Area, Alaska, Valdez–Cordova Census Area was dissolved. It is also a port for the Alaska Marine Highway. The population was 272 at the 2020 United States census, 2020 census, having increased from 220 in 2010. The city is notable for the fact that almost all of its residents live in the Begich Towers, Begich Towers Condominium, earning it the nickname of a "town under one roof". History The region occupied by Whittier was once part of the portage route of the Chugach people native to Prince William Sound. Later, the passage was used by Russian and American explorers, and by prospecting miners during the Klondike Gold Rush. The nearby Whittier Glacier was named for American poet John Greenleaf W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chenega, Alaska
Chenega (; Alutiiq: ) is a census-designated place (CDP) on Evans Island in the Chugach Census Area in the U.S. state of Alaska. Located in Prince William Sound, the CDP consists of the Chugach Alutiiq village of Chenega Bay, which was established only after the Good Friday earthquake destroyed the original community on Chenega Island to the north. As of the 2010 census, the population of the CDP was 76, largely Alaska Natives. As of 2021, the population of Chenega is 49. Chenega Bay is in the Chugach School District and has one school, Chenega Bay Community School, serving approximately 16 students from preschool through high school. History The original village of Chenega, located on Chenega Island, was destroyed in 1964 by a tsunami from the Good Friday earthquake, which killed a third of the 68 people who then lived there. A post office operated here from 1946-1964. Some residents moved into a refugee camp; others moved to other towns. In 1982, one family moved to Evans Island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valdez, Alaska
Valdez ( ; Alutiiq: ) is a city in the Chugach Census Area in the U.S. state of Alaska. According to the 2020 US Census, the population of the city is 3,985, up from 3,976 in 2010. It is the third most populated city in Alaska's Unorganized Borough. The city was named in 1790 after the Spanish Navy Minister Antonio Valdés y Fernández Bazán. A former Gold Rush town, it is located at the head of Port Valdez on the eastern side of Prince William Sound. The port did not flourish until after the road link to Fairbanks was constructed in 1899. It suffered catastrophic damage during the 1964 Alaska earthquake, and is located near the site of the disastrous 1989 Exxon Valdez oil tanker spill. Today, it is one of the most important ports in Alaska, a commercial fishing port as well as a freight terminal. Valdez is also the terminus for the Trans-Alaska Pipeline System. History The port of Valdez was named in 1790 by the Spanish explorer Salvador Fidalgo after the Spanish naval office ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Of Valdez
Valdez ( ; Alutiiq: ) is a city in the Chugach Census Area in the U.S. state of Alaska. According to the 2020 US Census, the population of the city is 3,985, up from 3,976 in 2010. It is the third most populated city in Alaska's Unorganized Borough. The city was named in 1790 after the Spanish Navy Minister Antonio Valdés y Fernández Bazán. A former Gold Rush town, it is located at the head of Port Valdez on the eastern side of Prince William Sound. The port did not flourish until after the road link to Fairbanks was constructed in 1899. It suffered catastrophic damage during the 1964 Alaska earthquake, and is located near the site of the disastrous 1989 Exxon Valdez oil tanker spill. Today, it is one of the most important ports in Alaska, a commercial fishing port as well as a freight terminal. Valdez is also the terminus for the Trans-Alaska Pipeline System. History The port of Valdez was named in 1790 by the Spanish explorer Salvador Fidalgo after the Spanish naval offic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prince William Sound
Prince William Sound (Sugpiaq: ''Suungaaciq'') is a sound of the Gulf of Alaska on the south coast of the U.S. state of Alaska. It is located on the east side of the Kenai Peninsula. Its largest port is Valdez, at the southern terminus of the Trans-Alaska Pipeline System. Other settlements on the sound, which contains numerous small islands, include Cordova and Whittier plus the Alaska native villages of Chenega and Tatitlek. History James Cook entered Prince William Sound in 1778 and initially named it Sandwich Sound, after his patron the Earl of Sandwich. Later that year, the Sound was named to honour George III's third son Prince William Henry, then aged 13 and serving as a midshipman in the Royal Navy. In 1790, the Spanish explorer Salvador Fidalgo entered the sound, naming many of its features. Some places in the sound still bear the names given by Fidalgo, as Port Valdez, Port Gravina or Cordova. The explorer landed on the actual site of Cordova and took possession of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tide
Tides are the rise and fall of sea levels caused by the combined effects of the gravity, gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables can be used for any given locale to find the predicted times and amplitude (or "tidal range"). The predictions are influenced by many factors including the alignment of the Sun and Moon, the #Phase and amplitude, phase and amplitude of the tide (pattern of tides in the deep ocean), the amphidromic systems of the oceans, and the shape of the coastline and near-shore bathymetry (see ''#Timing, Timing''). They are however only predictions, the actual time and height of the tide is affected by wind and atmospheric pressure. Many shorelines experience semi-diurnal tides—two nearly equal high and low tides each day. Other locations have a diurnal cycle, diurnal tide—one high and low tide each day. A "mixed tide"—two uneven magnitude ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seward Highway
The Seward Highway is a highway in the U.S. state of Alaska that extends from Seward to Anchorage. It was completed in 1951 and runs through the scenic Kenai Peninsula, Chugach National Forest, Turnagain Arm, and Kenai Mountains. The Seward Highway is numbered Alaska Route 9 (AK-9) for the first from Seward to the Sterling Highway and AK-1 for the remaining distance to Anchorage. At the junction with the Sterling Highway, AK-1 turns west towards Sterling and Homer. About of the Seward Highway leading into Anchorage is built to freeway standards. In Anchorage, the Seward Highway terminates at an intersection with 5th Avenue, which AK-1 is routed to, and which then leads to the Glenn Highway freeway. Route description The full length of the Seward Highway has been listed on the National Highway System (NHS), a network of roads important to the country's economy, defense, and mobility. The segment designated AK-9 between Seward and Tern Lake Junction is part of the STR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portage (Anchorage)
Portage is a ghost town and former settlement on Turnagain Arm in Alaska, about southeast of Downtown Anchorage. The town was destroyed in the 1964 Alaska earthquake when the ground in the area sank about , putting most of the town below high tide level. All that remains today are the ruins of a few buildings and a "ghost forest" of trees that died after salt water inundated their root systems. Where there was once a town there is now only a railroad and road junction linking the Seward Highway and the Alaska Railroad to Portage Glacier park and the Anton Anderson Memorial Tunnel, which leads to Whittier.The Milepost, 59th edition, page 540 Popular recreational activities in the Portage area include visiting the wildlife center, floating Portage, Twentymile, Placer rivers, fishing for hooligan in the Twentymile river, and ice skating the numerous marshy areas, creeks, and Portage Lake. Demographics Portage first appeared on the 1950 United States Census as an unincorporat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Girdwood, Anchorage
Girdwood is a resort town within the southern extent of the Municipality of Anchorage in the U.S. state of Alaska. Located near the end of the Turnagain Arm of Cook Inlet, Girdwood lies in a valley in the southwestern Chugach Mountains, surrounded by seven glaciers feeding into a number of creeks, which either converge within the valley or empty directly into the arm. Girdwood is typically accessed by the Seward Highway (Milepost 90), with the main line of the Alaska Railroad paralleling the highway. By road distance, most of the community lies within of Downtown Anchorage. The 2019 American Community Survey estimates a population of 1,742 in the valley. Founded as a community to supply miners during the Turnagain Arm gold rushes of the 1890s, Girdwood was mostly a small, quiet place until the middle of the 20th century. Two events drastically altered that. The first was the establishment of Alyeska Resort along the slopes of Mount Alyeska, which became an international dest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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