Washington earthquakes

M1.6 earthquake 7 km NNE of Richland, Washington

A magnitude 1.6 earthquake struck 7 km NNE of Richland, Washington on Thu, Dec 3, 1987, 9:58 AM PST (17:58 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.2 17 km WSW of Othello, Washington. This one was a foreshock.

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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
1987-12-03 17:58:29 UTC
Depth
-0.4 km (-0.3 mi), shallow
Epicenter
46.352° N, 119.262° 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 0.1 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
154°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 28 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.217 km WSW of Othello, Washington · 14172 days ago · 0 km deep · 46 km away
  2. 1.97 km NNE of Richland, Washington · 14170 days ago · 0 km deep · 1 km away
  3. 1.817 km WSW of Othello, Washington · 14165 days ago · 1 km deep · 45 km away
  4. 2.16 km NNE of Milton-Freewater, Oregon · 14163 days ago · 2 km deep · 80 km away
  5. 1.815 km E of Mattawa, Washington · 14162 days ago · 17 km deep · 55 km away
  6. 1.917 km WSW of Othello, Washington · 14156 days ago · 0 km deep · 45 km away
  7. 2.05 km SSW of Connell, Washington · 14155 days ago · 1 km deep · 42 km away
  8. 1.616 km WSW of Othello, Washington · 14151 days ago · 0 km deep · 45 km away
  9. 2.117 km WSW of Othello, Washington · 14150 days ago · 1 km deep · 44 km away
  10. 1.517 km SW of Othello, Washington · 14150 days ago · 2 km deep · 44 km away
  11. 1.516 km WSW of Othello, Washington · 14150 days ago · 0 km deep · 44 km away
  12. 1.717 km WSW of Othello, Washington · 14149 days ago · 0 km deep · 44 km away
  13. 2.219 km SW of Othello, Washington · 14146 days ago · 1 km deep · 41 km away
  14. 1.917 km WSW of Othello, Washington · 14144 days ago · 0 km deep · 45 km away
  15. 1.717 km WSW of Othello, Washington · 14141 days ago · 1 km deep · 44 km away
  16. 1.716 km WSW of Othello, Washington · 14139 days ago · 0 km deep · 45 km away
  17. 1.69 km SE of Bickleton, Washington · 14138 days ago · 8 km deep · 87 km away
  18. 1.516 km S of Prosser, Washington · 14135 days ago · 8 km deep · 49 km away
  19. 2.15 km SW of Connell, Washington · 14131 days ago · 2 km deep · 40 km away
  20. 2.415 km WSW of Othello, Washington · 14130 days ago · 0 km deep · 45 km away
  21. 2.616 km WSW of Othello, Washington · 14128 days ago · 0 km deep · 44 km away
  22. 2.016 km SW of Othello, Washington · 14127 days ago · 0 km deep · 44 km away
  23. 1.716 km SW of Othello, Washington · 14126 days ago · 0 km deep · 44 km away
  24. 1.519 km WSW of Othello, Washington · 14124 days ago · 0 km deep · 45 km away
  25. 1.73 km SSE of Grandview, Washington · 14123 days ago · 12 km deep · 50 km away
  26. 2.13 km SSE of Grandview, Washington · 14123 days ago · 12 km deep · 51 km away
  27. 1.53 km S of Grandview, Washington · 14123 days ago · 11 km deep · 51 km away
  28. 2.14 km NE of Prosser, Washington · 14120 days ago · -1 km deep · 38 km away

Before

  1. 1.518 km SW of Othello, Washington · 14176 days ago · 0 km deep · 41 km away
  2. 1.77 km SSW of Desert Aire, Washington · 14184 days ago · 9 km deep · 60 km away
  3. 1.917 km WSW of Othello, Washington · 14184 days ago · 0 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10226943. Read Tue, Sep 22, 2026, 12:13 PM UTC.