Washington earthquakes

M1.9 earthquake 13 km E of Mansfield, Washington

A magnitude 1.9 earthquake struck 13 km E of Mansfield, Washington on Sat, Aug 31, 1985, 1:03 PM PDT (20:03 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.4 15 km ESE of Mansfield, 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
1985-08-31 20:03:16 UTC
Depth
-0.6 km (-0.4 mi), shallow
Epicenter
47.818° N, 119.452° 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 3.3 km horizontally
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
98°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.415 km ESE of Mansfield, Washington · 14998 days ago · -1 km deep · 6 km away
  2. 1.913 km E of Bridgeport, Washington · 14994 days ago · 0 km deep · 22 km away
  3. 1.61 km N of Chelan Falls, Washington · 14991 days ago · 0 km deep · 40 km away
  4. 2.113 km E of Bridgeport, Washington · 14991 days ago · 0 km deep · 20 km away
  5. 1.83 km E of Manson, Washington · 14984 days ago · 0 km deep · 50 km away
  6. 2.10 km E of Entiat, Washington · 14979 days ago · 0 km deep · 58 km away
  7. 2.218 km E of Mansfield, Washington · 14976 days ago · 0 km deep · 4 km away
  8. 2.118 km NNW of Banks Lake South, Washington · 14974 days ago · 0 km deep · 7 km away
  9. 1.61 km NNW of Chelan Falls, Washington · 14972 days ago · 0 km deep · 40 km away
  10. 2.01 km SW of Quincy, Washington · 14971 days ago · 0 km deep · 73 km away
  11. 2.517 km NNW of Banks Lake South, Washington · 14971 days ago · 0 km deep · 7 km away
  12. 1.8Washington · 14968 days ago · 4 km deep · 52 km away
  13. 1.61 km NNW of Chelan Falls, Washington · 14968 days ago · -1 km deep · 40 km away
  14. 1.59 km WNW of Entiat, Washington · 14962 days ago · 4 km deep · 66 km away
  15. 3.29 km NNW of Entiat, Washington · 14959 days ago · 6 km deep · 61 km away
  16. 2.112 km SE of Bridgeport, Washington · 14957 days ago · 0 km deep · 14 km away
  17. 2.417 km NNW of Banks Lake South, Washington · 14956 days ago · 0 km deep · 7 km away
  18. 1.87 km N of Waterville, Washington · 14939 days ago · 5 km deep · 46 km away

Before

  1. 2.1Washington · 15002 days ago · 2 km deep · 65 km away
  2. 1.77 km N of Methow, Washington · 15008 days ago · -1 km deep · 58 km away
  3. 1.61 km N of Chelan Falls, Washington · 15020 days ago · 0 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10197038. Read Thu, Sep 24, 2026, 1:17 AM UTC.