When did the 1964 Alaska earthquake occur?

The Great Alaska Earthquake occurred on 27 March 1964 and had a magnitude of 9.2, making it the largest recorded earthquake in North American history. It caused massive ground shaking, landslides, and tsunamis that affected Alaska and the Pacific coast. The event killed 131 people, far fewer than might be expected because much of Alaska was sparsely populated, but the infrastructure damage was severe. It remains a key case for studying subduction-zone earthquakes.