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Home / Earthquakes / Washington

Washington Earthquake History

Since March 14, 1903, the USGS has recorded 144 earthquakes of magnitude 4.5 or greater in Washington, 5 of them magnitude 6 or above. The strongest was M 6.8.

By decade

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Strongest in Washington

M 6.8 · 7 km SSE of Longbranch, WashingtonFebruary 28, 2001M 6.7 · 1 km ENE of Dash Point, WashingtonApril 29, 1965M 6.7 · 4 km WNW of Roy, WashingtonApril 13, 1949M 6.1 · Puget Sound region, WashingtonNovember 13, 1939M 6.0 · San Juan Islands, WashingtonJanuary 11, 1909M 6.0 · 3 km SW of Garrett, WashingtonJuly 16, 1936M 5.8 · 8 km N of Satsop, WashingtonJuly 3, 1999M 5.7 · 38 km NNE of Amboy, WashingtonMay 18, 1980M 5.6 · Near Marblemount, WashingtonAugust 18, 1915M 5.5 · 21 km SSE of Point Roberts, WashingtonJanuary 24, 1920

All recorded earthquakes

M 4.9 mdMay 4, 1980
38 km S of Morton, Washington · depth 0 km
M 4.5 mdMay 3, 1980
38 km NNE of Amboy, Washington · depth -1 km
M 4.8 mdMay 2, 1980
38 km S of Morton, Washington · depth -1 km
M 4.6 mdMay 1, 1980
36 km NNE of Amboy, Washington · depth -1 km
M 4.6 mdMay 1, 1980
38 km NNE of Amboy, Washington · depth -1 km
M 4.5 mdApril 30, 1980
39 km NNE of Amboy, Washington · depth -0 km
M 4.9 mdApril 30, 1980
39 km NNE of Amboy, Washington · depth -0 km
M 4.6 mdApril 29, 1980
38 km S of Morton, Washington · depth -1 km
M 4.8 mdApril 29, 1980
38 km S of Morton, Washington · depth 0 km
M 4.9 mdApril 28, 1980
38 km NNE of Amboy, Washington · depth 1 km
M 4.9 mdApril 27, 1980
39 km NNE of Amboy, Washington · depth -1 km
M 5.0 mbApril 25, 1980
34 km SSE of Morton, Washington · depth 5 km
M 4.8 mdApril 24, 1980
39 km S of Morton, Washington · depth 0 km
M 4.5 mdApril 23, 1980
38 km NNE of Amboy, Washington · depth -1 km
M 4.5 mbApril 23, 1980
38 km SSE of Morton, Washington · depth 5 km
M 5.0 mdApril 22, 1980
38 km NNE of Amboy, Washington · depth -1 km
M 4.8 mdApril 21, 1980
39 km NNE of Amboy, Washington · depth -1 km
M 5.1 mdApril 20, 1980
39 km NNE of Amboy, Washington · depth 1 km
M 4.8 mdApril 19, 1980
39 km NNE of Amboy, Washington · depth 1 km
M 4.6 mdApril 18, 1980
39 km NNE of Amboy, Washington · depth 1 km
M 5.0 mdApril 18, 1980
38 km NNE of Amboy, Washington · depth -0 km
M 4.7 mdApril 18, 1980
39 km S of Morton, Washington · depth -1 km
M 5.0 mdApril 17, 1980
38 km S of Morton, Washington · depth -0 km
M 4.7 mdApril 17, 1980
38 km NNE of Amboy, Washington · depth -0 km
M 4.6 mdApril 16, 1980
39 km S of Morton, Washington · depth 2 km
M 4.8 mdApril 16, 1980
39 km NNE of Amboy, Washington · depth -1 km
M 5.0 mdApril 15, 1980
39 km S of Morton, Washington · depth -1 km
M 4.7 mdApril 15, 1980
Washington · depth 1 km
M 4.5 mdApril 15, 1980
38 km NNE of Amboy, Washington · depth 1 km
M 5.2 mdApril 14, 1980
37 km NNE of Amboy, Washington · depth 1 km
M 4.9 mdApril 14, 1980
38 km NNE of Amboy, Washington · depth 1 km
M 4.9 mdApril 13, 1980
39 km NNE of Amboy, Washington · depth -1 km
M 4.5 mdApril 13, 1980
38 km NNE of Amboy, Washington · depth -1 km
M 4.8 mdApril 13, 1980
39 km S of Morton, Washington · depth 1 km
M 4.6 mdApril 12, 1980
38 km S of Morton, Washington · depth 1 km
M 4.7 mdApril 12, 1980
38 km SSE of Morton, Washington · depth -1 km
M 5.0 mdApril 11, 1980
39 km NNE of Amboy, Washington · depth -1 km
M 4.7 mdApril 11, 1980
38 km S of Morton, Washington · depth 1 km
M 4.7 mdApril 10, 1980
38 km NNE of Amboy, Washington · depth -1 km
M 4.9 mdApril 10, 1980
38 km S of Morton, Washington · depth -1 km

Source: U.S. Geological Survey, Earthquake Hazards Program. Older and smaller earthquakes are under-counted relative to recent decades as instrumentation improved. A record of past shaking is not a forecast. See About the Data.