A Pacific-wide tsunami resulted after an 8.2 earthquake off the coast of the Kamchatka Peninsula on Nov. 4, 1952.

Downtown Hilo after the 1946 tsunami, illustrating damage to the makai (ocean) side of Kamehameha Avenue. Approximately 13,000 feet below the ocean’s surface a 7.4 magnitude tremor was recorded in the North Pacific, triggering deadly tidal waves through the Pacific. The most destructive tsunami in Hawaii occurred on April 1, 1946 after an earthquake measuring 7.4 on the Richter Scale struck the ocean floor off the Aleutian Islands of Alaska.
In the middle of the night on April 1, 1946, an undersea earthquake in the Aleutian Islands off the coast of Alaska triggered a massive tsunami that killed 159 people in Hawaii.

The man in the foreground (lower left) became one of the 159 deaths on the islands. 1 in Hilo Harbor, Hawaii. The tsunami of April 1, 1946 broke over Pier No. Photo taken from the second story of Hilo Dry Goods towards Mo’oheau Park. An Army crash boat that was at the wharf washed up about 400 feet, went over the railroad tracks, and ended up against these molasses tanks.

On April 1, 1946, an undersea earthquake off the Alaskan coast triggers a massive tsunami that kills 159 people in Hawaii.