Disasters (Nation) - Alaska earthquake 1964 - The most powerful magnitude earthquake ever recorded by a seismograph and the largest earthquake in North America, it measured in at 9.2 on a seismograph.

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The 1964 Alaska earthquake, magnitude 9.2, began at 5:36 P.M. AST on Good Friday, March 27, 1964. Across south-central Alaska, ground fissures, collapsing buildings, and tsunamis resulting from the earthquake caused about 143 deaths (9 from quake, others from tsunamis). Lasting nearly four minutes, it was the most powerful recorded earthquake in U.S. and North American history. Fourth Avenue in Anchorage, Alaska, looking east from near Barrow Street.

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construction workers after the 1964 alaska earthquake anchorage | ... Young Remembering the 1964 Earthquake 50 Years Later (Don Young

Events, exhibits, memorials marking the 50th anniversary of 1964 Alaska earthquake | 1964 Great Alaska Earthquake | ADN.com

The 1964 Alaska earthquake, magnitude 9.2, began at 5:36 P.M. AST on Good Friday, March 27, 1964. Across south-central Alaska, ground fissures, collapsing buildings, and tsunamis resulting from the earthquake caused about 143 deaths (9 from quake, others from tsunamis). Lasting nearly four minutes, it was the most powerful recorded earthquake in U.S. and North American history. The largest landslide in Anchorage occurred along Knik Arm between Point Woronzof and Fish Creek.

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