Washington earthquakes

M1.9 earthquake 14 km NW of Mattawa, Washington

A magnitude 1.9 earthquake struck 14 km NW of Mattawa, Washington on Sat, Aug 24, 1985, 7:25 PM PDT (02:25 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.0 12 km WNW of Mattawa, 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1985-08-25 02:25:44 UTC
Depth
-0.4 km (-0.3 mi), shallow
Epicenter
46.810° N, 120.056° 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, 0.4 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
78°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.112 km SSW of Toppenish, Washington · 15013 days ago · -1 km deep · 64 km away
  2. 2.1Washington · 15013 days ago · 2 km deep · 97 km away
  3. 2.213 km WNW of Mattawa, Washington · 15004 days ago · 0 km deep · 1 km away
  4. 2.10 km E of Entiat, Washington · 14990 days ago · 0 km deep · 97 km away
  5. 1.913 km WNW of Mattawa, Washington · 14985 days ago · 3 km deep · 1 km away
  6. 1.712 km WNW of Mattawa, Washington · 14984 days ago · 0 km deep · 2 km away
  7. 2.01 km SW of Quincy, Washington · 14982 days ago · 0 km deep · 48 km away
  8. 3.012 km WNW of Mattawa, Washington · 14979 days ago · 1 km deep · 2 km away
  9. 3.012 km WNW of Mattawa, Washington · 14979 days ago · 1 km deep · 2 km away
  10. 2.512 km WNW of Mattawa, Washington · 14979 days ago · 1 km deep · 2 km away
  11. 1.68 km NNE of Selah, Washington · 14972 days ago · 19 km deep · 35 km away
  12. 1.622 km NNE of Terrace Heights, Washington · 14964 days ago · 0 km deep · 18 km away
  13. 2.123 km NNE of Terrace Heights, Washington · 14964 days ago · 2 km deep · 18 km away
  14. 1.711 km S of Toppenish, Washington · 14964 days ago · -1 km deep · 63 km away
  15. 1.822 km NNE of Terrace Heights, Washington · 14959 days ago · 2 km deep · 20 km away
  16. 1.914 km SSW of Vantage, Washington · 14958 days ago · 0 km deep · 1 km away
  17. 1.912 km NW of Mattawa, Washington · 14958 days ago · 4 km deep · 2 km away

Before

  1. 1.811 km SW of Ellensburg, Washington · 15018 days ago · 9 km deep · 47 km away
  2. 2.19 km WSW of Royal City, Washington · 15020 days ago · 0 km deep · 24 km away
  3. 1.88 km SW of Warden, Washington · 15035 days ago · 0 km deep · 72 km away
  4. 1.76 km NW of Tieton, Washington · 15037 days ago · 5 km deep · 58 km away
  5. 1.83 km E of Connell, Washington · 15040 days ago · 2 km deep · 96 km away
  6. 1.711 km SSW of Toppenish, Washington · 15040 days ago · -1 km deep · 63 km away
  7. 2.35 km E of Entiat, Washington · 15042 days ago · 3 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10195958. Read Sun, Oct 4, 2026, 11:52 PM UTC.