Washington earthquakes

M1.6 earthquake 6 km SE of Quincy, Washington

A magnitude 1.6 earthquake struck 6 km SE of Quincy, Washington on Sat, Oct 27, 1979, 9:27 PM PDT (04:27 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.8 5 km ENE of Royal City, Washington. This one was a foreshock.

Quincy forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (md), micro
Local time
UTC
1979-10-28 04:27:35 UTC
Depth
0.3 km (0.2 mi), shallow
Epicenter
47.188° N, 119.792° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.6 km horizontally
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
342°, poorly surrounded by stations
Stations used
4

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 55 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.85 km ENE of Royal City, Washington · 17126 days ago · 1 km deep · 34 km away
  2. 1.94 km ENE of Royal City, Washington · 17126 days ago · 4 km deep · 35 km away
  3. 1.64 km ENE of Royal City, Washington · 17125 days ago · 0 km deep · 34 km away
  4. 1.528 km NNW of Benton City, Washington · 17124 days ago · 5 km deep · 78 km away
  5. 1.54 km ENE of Royal City, Washington · 17119 days ago · 0 km deep · 34 km away
  6. 3.18 km N of Waterville, Washington · 17118 days ago · 3 km deep · 63 km away
  7. 1.73 km ENE of Royal City, Washington · 17118 days ago · 2 km deep · 35 km away
  8. 2.717 km ESE of Mansfield, Washington · 17118 days ago · -1 km deep · 70 km away
  9. 1.517 km ESE of Mansfield, Washington · 17118 days ago · 1 km deep · 70 km away
  10. 1.617 km ESE of Mansfield, Washington · 17117 days ago · 0 km deep · 70 km away
  11. 1.717 km ESE of Mansfield, Washington · 17117 days ago · 0 km deep · 70 km away
  12. 1.817 km ESE of Mansfield, Washington · 17117 days ago · 0 km deep · 70 km away
  13. 1.73 km ENE of Royal City, Washington · 17116 days ago · 5 km deep · 34 km away
  14. 2.74 km NE of Royal City, Washington · 17116 days ago · 3 km deep · 33 km away
  15. 1.73 km ENE of Royal City, Washington · 17116 days ago · 5 km deep · 34 km away
  16. 1.83 km ENE of Royal City, Washington · 17116 days ago · 3 km deep · 34 km away
  17. 2.117 km ESE of Mansfield, Washington · 17111 days ago · 0 km deep · 70 km away
  18. 1.722 km E of Mansfield, Washington · 17111 days ago · 0 km deep · 79 km away
  19. 1.64 km NE of Royal City, Washington · 17111 days ago · 4 km deep · 33 km away
  20. 2.04 km ENE of Royal City, Washington · 17111 days ago · 0 km deep · 35 km away
  21. 2.03 km ENE of Royal City, Washington · 17111 days ago · 5 km deep · 34 km away
  22. 1.55 km NE of Royal City, Washington · 17111 days ago · 2 km deep · 31 km away
  23. 2.85 km ESE of Royal City, Washington · 17111 days ago · 3 km deep · 38 km away
  24. 1.84 km NE of Royal City, Washington · 17110 days ago · 5 km deep · 34 km away
  25. 1.54 km ENE of Royal City, Washington · 17109 days ago · 0 km deep · 34 km away
  26. 1.56 km NE of Royal City, Washington · 17109 days ago · 0 km deep · 31 km away
  27. 2.85 km ENE of Royal City, Washington · 17108 days ago · 1 km deep · 34 km away
  28. 1.74 km NE of Royal City, Washington · 17107 days ago · 0 km deep · 33 km away
  29. 2.64 km NE of Royal City, Washington · 17106 days ago · 2 km deep · 33 km away
  30. 2.54 km NE of Royal City, Washington · 17104 days ago · 2 km deep · 32 km away
  31. 3.45 km NE of Royal City, Washington · 17104 days ago · 3 km deep · 33 km away
  32. 1.55 km NE of Royal City, Washington · 17104 days ago · 0 km deep · 32 km away
  33. 1.83 km NE of Royal City, Washington · 17103 days ago · 4 km deep · 33 km away
  34. 1.615 km W of Entiat, Washington · 17099 days ago · 0 km deep · 71 km away
  35. 2.66 km ENE of Royal City, Washington · 17097 days ago · 0 km deep · 34 km away
  36. 2.69 km SW of Chelan Falls, Washington · 17094 days ago · 6 km deep · 65 km away
  37. 1.83 km ENE of Royal City, Washington · 17091 days ago · 2 km deep · 34 km away
  38. 3.11 km NE of Gleed, Washington · 17088 days ago · 7 km deep · 85 km away
  39. 1.63 km ENE of Royal City, Washington · 17085 days ago · 0 km deep · 35 km away
  40. 1.99 km W of Entiat, Washington · 17082 days ago · -1 km deep · 68 km away
  41. 1.55 km ENE of Mesa, Washington · 17081 days ago · 4 km deep · 93 km away
  42. 2.04 km ENE of Mesa, Washington · 17081 days ago · 4 km deep · 92 km away
  43. 1.95 km ENE of Mesa, Washington · 17077 days ago · 4 km deep · 92 km away
  44. 1.73 km NNE of Royal City, Washington · 17076 days ago · 0 km deep · 32 km away
  45. 1.83 km NNE of Royal City, Washington · 17076 days ago · 1 km deep · 32 km away
  46. 1.517 km ESE of Mansfield, Washington · 17076 days ago · 0 km deep · 70 km away
  47. 2.03 km NNE of Royal City, Washington · 17073 days ago · 0 km deep · 32 km away
  48. 1.72 km NNE of Royal City, Washington · 17073 days ago · 0 km deep · 33 km away
  49. 1.63 km NE of Royal City, Washington · 17073 days ago · 3 km deep · 32 km away
  50. 1.85 km N of Royal City, Washington · 17073 days ago · 0 km deep · 29 km away
  51. 1.73 km NNE of Royal City, Washington · 17073 days ago · 0 km deep · 32 km away
  52. 1.64 km NNE of Royal City, Washington · 17072 days ago · 1 km deep · 31 km away
  53. 1.73 km NNE of Royal City, Washington · 17072 days ago · 0 km deep · 32 km away
  54. 1.53 km NNE of Royal City, Washington · 17072 days ago · 0 km deep · 32 km away
  55. 1.618 km SW of Othello, Washington · 17072 days ago · 0 km deep · 63 km away

Before

  1. 2.04 km ENE of Royal City, Washington · 17132 days ago · 3 km deep · 34 km away
  2. 1.76 km NE of Royal City, Washington · 17153 days ago · 0 km deep · 32 km away
  3. 1.66 km ENE of Royal City, Washington · 17153 days ago · 4 km deep · 33 km away
  4. 1.65 km NE of Royal City, Washington · 17154 days ago · 0 km deep · 33 km away
  5. 2.13 km NNE of Royal City, Washington · 17154 days ago · 5 km deep · 32 km away
  6. 1.95 km NE of Royal City, Washington · 17154 days ago · 5 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10850913. Read Tue, Sep 22, 2026, 3:08 PM UTC.