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Washington earthquakes in 1977

37 earthquakes of magnitude 2.5 or more were located in Washington in 1977. The largest: M4.0 4 km N of Bangor Trident Base, Washington, Jun 16, 1977.

From the USGS catalog. Times are local to each quake.

19761978

Map

Where every quake of 1977 was located in Washington. Select one for its page.

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Every quake of 1977

Magnitude 2.5 and up, newest first.

  1. 2.75 km ESE of Okanogan, Washington · 15 km deep
  2. 2.7Olympic Peninsula, Washington · 0 km deep
  3. 3.36 km E of Sedro-Woolley, Washington · 4 km deep
  4. 2.913 km NNE of Ellensburg, Washington · 0 km deep
  5. 3.06 km SW of Lyman, Washington · 6 km deep
  6. 2.722 km ESE of Desert Aire, Washington · 0 km deep
  7. 3.46 km SSE of Bucoda, Washington · 6 km deep
  8. 2.70 km W of Alderwood Manor, Washington · 14 km deep
  9. 3.75 km NW of Port Hadlock-Irondale, Washington · 53 km deep
  10. 2.52 km WNW of Clearview, Washington · 55 km deep
  11. 3.34 km N of Duvall, Washington · 23 km deep
  12. 2.717 km S of Mossyrock, Washington · 14 km deep
  13. 2.710 km NE of Snoqualmie, Washington · 7 km deep
  14. 3.910 km SSW of South Cle Elum, Washington · 2 km deep
  15. 3.63 km ENE of Edison, Washington · 12 km deep
  16. 2.68 km ESE of Deming, Washington · -1 km deep
  17. 2.529 km NE of Yacolt, Washington · 0 km deep
  18. 2.81 km NNW of Wauna, Washington · 44 km deep
  19. 4.04 km N of Bangor Trident Base, Washington · 19 km deep
  20. 2.69 km SSW of Morton, Washington · 0 km deep
  21. 3.06 km SSW of Morton, Washington · 24 km deep
  22. 2.931 km NE of Amboy, Washington · 13 km deep
  23. 2.66 km SSW of Morton, Washington · 19 km deep
  24. 2.52 km SW of Brady, Washington · 39 km deep
  25. 3.05 km S of Quilcene, Washington · 45 km deep
  26. 3.229 km S of Morton, Washington · 6 km deep
  27. 2.82 km N of Bonney Lake, Washington · 13 km deep
  28. 2.717 km NNW of Soap Lake, Washington · 6 km deep
  29. 2.6Puget Sound region, Washington · 21 km deep
  30. 2.54 km WSW of Onalaska, Washington · 28 km deep
  31. 2.94 km SW of Morton, Washington · 22 km deep
  32. 2.96 km SW of Morton, Washington · 20 km deep
  33. 2.510 km E of Kalama, Washington · 16 km deep
  34. 2.66 km S of Sultan, Washington · 16 km deep
  35. 2.89 km NE of Snoqualmie, Washington · 10 km deep
  36. 3.25 km NE of Royal City, Washington · 1 km deep
  37. 2.57 km S of Morton, Washington · 8 km deep

The largest

The 25 largest of 1977 in Washington.

  1. 4.04 km N of Bangor Trident Base, Washington · 19 km deep
  2. 3.910 km SSW of South Cle Elum, Washington · 2 km deep
  3. 3.75 km NW of Port Hadlock-Irondale, Washington · 53 km deep
  4. 3.63 km ENE of Edison, Washington · 12 km deep
  5. 3.46 km SSE of Bucoda, Washington · 6 km deep
  6. 3.36 km E of Sedro-Woolley, Washington · 4 km deep
  7. 3.34 km N of Duvall, Washington · 23 km deep
  8. 3.229 km S of Morton, Washington · 6 km deep
  9. 3.25 km NE of Royal City, Washington · 1 km deep
  10. 3.06 km SW of Lyman, Washington · 6 km deep
  11. 3.06 km SSW of Morton, Washington · 24 km deep
  12. 3.05 km S of Quilcene, Washington · 45 km deep
  13. 2.913 km NNE of Ellensburg, Washington · 0 km deep
  14. 2.931 km NE of Amboy, Washington · 13 km deep
  15. 2.94 km SW of Morton, Washington · 22 km deep
  16. 2.96 km SW of Morton, Washington · 20 km deep
  17. 2.81 km NNW of Wauna, Washington · 44 km deep
  18. 2.82 km N of Bonney Lake, Washington · 13 km deep
  19. 2.89 km NE of Snoqualmie, Washington · 10 km deep
  20. 2.75 km ESE of Okanogan, Washington · 15 km deep
  21. 2.7Olympic Peninsula, Washington · 0 km deep
  22. 2.722 km ESE of Desert Aire, Washington · 0 km deep
  23. 2.70 km W of Alderwood Manor, Washington · 14 km deep
  24. 2.717 km S of Mossyrock, Washington · 14 km deep
  25. 2.710 km NE of Snoqualmie, Washington · 7 km deep

Month by month

Counted by UTC date, which is how the catalog files them.

MonthQuakesLargestWhere
January 197733.25 km NE of Royal City, Washington
February 197742.94 km SW of Morton, Washington
March 197742.82 km N of Bonney Lake, Washington
April 19770
May 197763.229 km S of Morton, Washington
June 197744.04 km N of Bangor Trident Base, Washington
July 197783.910 km SSW of South Cle Elum, Washington
August 197712.70 km W of Alderwood Manor, Washington
September 197733.46 km SSE of Bucoda, Washington
October 197733.36 km E of Sedro-Woolley, Washington
November 197712.75 km ESE of Okanogan, Washington
December 19770

What this means

The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.

By year

Every year the USGS catalog covers.

Nearby

Washington nowWorldwide in 1977

Sources

Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.