Washington earthquakes

M1.9 earthquake 2 km NNE of Mesa, Washington

A magnitude 1.9 earthquake struck 2 km NNE of Mesa, Washington on Sat, Feb 6, 1988, 4:29 PM PST (00:29 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.6 7 km NNE of Richland, 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
1.9 (md), micro
Local time
UTC
1988-02-07 00:29:58 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
46.596° N, 118.988° 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 1.5 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
123°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 2.35 km SW of Connell, Washington · 14112 days ago · 2 km deep · 7 km away
  2. 1.722 km WSW of Othello, Washington · 14111 days ago · 0 km deep · 38 km away
  3. 1.518 km WSW of Othello, Washington · 14104 days ago · 0 km deep · 35 km away
  4. 2.313 km SSW of Cascade Valley, Washington · 14098 days ago · 0 km deep · 59 km away
  5. 1.715 km SW of Cascade Valley, Washington · 14098 days ago · 1 km deep · 59 km away
  6. 1.825 km WSW of Othello, Washington · 14090 days ago · 0 km deep · 38 km away
  7. 1.525 km WSW of Othello, Washington · 14085 days ago · 0 km deep · 38 km away
  8. 2.67 km NNE of Richland, Washington · 14075 days ago · 0 km deep · 35 km away
  9. 2.57 km N of Richland, Washington · 14075 days ago · 0 km deep · 35 km away
  10. 1.57 km N of Richland, Washington · 14075 days ago · 0 km deep · 35 km away
  11. 1.88 km SW of Warden, Washington · 14072 days ago · 3 km deep · 37 km away
  12. 2.16 km SW of Warden, Washington · 14068 days ago · 2 km deep · 37 km away
  13. 2.67 km SW of Warden, Washington · 14061 days ago · 3 km deep · 37 km away

Before

  1. 2.119 km WSW of Othello, Washington · 14117 days ago · 0 km deep · 35 km away
  2. 1.919 km WSW of Othello, Washington · 14119 days ago · 1 km deep · 35 km away
  3. 1.919 km WSW of Othello, Washington · 14119 days ago · 1 km deep · 35 km away
  4. 2.919 km WSW of Othello, Washington · 14119 days ago · 2 km deep · 35 km away
  5. 2.119 km WSW of Othello, Washington · 14120 days ago · 0 km deep · 35 km away
  6. 2.919 km WSW of Othello, Washington · 14120 days ago · 0 km deep · 35 km away
  7. 2.14 km NE of Prosser, Washington · 14128 days ago · -1 km deep · 70 km away
  8. 1.53 km S of Grandview, Washington · 14131 days ago · 11 km deep · 81 km away
  9. 2.13 km SSE of Grandview, Washington · 14131 days ago · 12 km deep · 81 km away
  10. 1.73 km SSE of Grandview, Washington · 14131 days ago · 12 km deep · 81 km away
  11. 1.519 km WSW of Othello, Washington · 14132 days ago · 0 km deep · 36 km away
  12. 1.716 km SW of Othello, Washington · 14134 days ago · 0 km deep · 32 km away
  13. 2.016 km SW of Othello, Washington · 14135 days ago · 0 km deep · 32 km away
  14. 2.616 km WSW of Othello, Washington · 14136 days ago · 0 km deep · 32 km away
  15. 2.415 km WSW of Othello, Washington · 14138 days ago · 0 km deep · 33 km away
  16. 2.15 km SW of Connell, Washington · 14139 days ago · 2 km deep · 7 km away
  17. 1.516 km S of Prosser, Washington · 14143 days ago · 8 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10228298. Read Wed, Sep 30, 2026, 4:42 PM UTC.