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Washington State Earthquake History. Major earthquakes in Washington since 1880 (source: USGS) On December 14, 1872, a strong earthquake in the Cascade Mountains caused damage at Victoria, British Columbia, and Seattle. It was felt over a very large area, about 390,000 square kilometers, extending as far south as Eugene, Oregon, and north into British Columbia, probably even into Alaska.
The Great Alaska Earthquake of 1964. Summary of the earthquakeâs cause and effects from the Alaska Earthquake Information Center. Videos. Magnitude 9.2: The 1964 Great Alaska Earthquake. 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.