The earthquake lasted approximately 4.5 minutes and is the most powerful recorded earthquake in U.S. history. Prince William Sound, Alaska, earthquake of March 27, 1964. The First Papal Visit to America, 50 Years Ago.
Twelve people were killed by the tsunami in or near There were hundreds of aftershocks in the first weeks following the main shock. Sources vary as to the magnitude of this earthquake, in part because a variety of scales are used to measure earthquakes. Most of Alaska’s mainland felt the magnitude 9.2 earthquake, which wobbled Seattle’s Space Needle some 1,200 miles away.
At around 7:19 a.m. on September 19, 1985, Mexico City, one of the world’s largest urban areas, was jolted by a magnitude 8.1 earthquake, At 4:31 a.m. on January 17, 1994, a 6.7-magnitude quake struck the San Fernando Valley, a densely populated area of Los Angeles located 20 miles northwest of the city’s downtown. The 1964 Alaska earthquake, the strongest earthquake ever recorded in North America, struck Alaska’s Prince William Sound, about 74 miles southeast of Anchorage.
UAA/APU Consortium Library Archives and Special Collections. The largest tsunami wave was recorded in As a result of the earthquake, 131 people are believed to have died:Most damage occurred in Anchorage, 75 mi (120 km) northwest of the epicenter. "PROWESS Honors Historic Earthquake Survivor". commemorates the Alaska Earthquake and examines the advances in knowledge and technology that have helped improve earthquake preparation and response in Alaska and around the world.Map showing ground motion and shaking intensity based on instrumental measurements of shaking along with information about local geology and the earthquake’s location and magnitude.Summary of the earthquake’s cause and effects from the Alaska Earthquake Information Center.Short video (4 min) by Stephen Wessells, USGS relating how the largest quake in U.S. history had profound and lasting impacts on our lives.
In Anchorage, at the urging of geologist The United States military, which has a large active presence in Alaska, also stepped in to assist within moments of the end of the quake. Animations explain the magnitude (Just how big is 9.2? Learn about the great leaps in research over the past 50 years. Guide to the Anchorage Engineering Geology Evaluation Group papers, 1964.
The 1964 Alaska tsunami was the second largest ever recorded, again following only the one caused by the 1960 Chile earthquake (4 meters at Sitka).
This USGS Fact Sheet by Thomas M. Brocher, et al.
Of the 119 deaths attributable to the effects of the ocean, about one-third were due to the open-ocean tsunami: 4 at Newport Beach, Oregon; 12 at Crescent City, California; and about 21 in Alaska. The Alaskan earthquake occurred on Good Friday, March 27, 1964, at 5:36 PM local time. The 1964 Alaska Earthquake taught coastal citizens to run for higher ground at the first sign of strong tremors.The demolished towns of Valdez and Chenega were rebuilt on higher ground, but not everyone was prudent about rebuilding on earthquake-prone land.Much to the dismay of some earthquake experts, luxury homes were rebuilt on areas most likely to experience earthquake damage, including on top of the ruins in Turnagain Heights.Only time will tell if new building codes are strong enough to withstand the next massive Alaskan earthquake.Subscribe for fascinating stories connecting the past to the present.On September 21, 1999, an earthquake in Taiwan killed more than 2,400 people, destroyed or damaged thousands of buildings and left an estimated 100,000 people homeless. Produced by Creative Arts Studio in 1964 for the USGS.Excerpt from the TV show “The Big Picture” produced by the US Army in 1966 about the Alaska Earthquake and its tragic effects.Ned Rozell’s personal account of his meeting with George Plafker, one of three USGS Geologists who responded to the Alaska quake a few days after event.
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