Washington earthquakes

M2.4 earthquake 15 km ESE of Mansfield, Washington

A magnitude 2.4 earthquake struck 15 km ESE of Mansfield, Washington on Sun, Sep 1, 1985, 2:45 AM PDT (09:45 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.5 17 km NNW of Banks Lake South, 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
2.4 (md), micro
Local time
UTC
1985-09-01 09:45:27 UTC
Depth
-0.8 km (-0.5 mi), shallow
Epicenter
47.769° N, 119.445° 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 0.2 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
94°
Stations used
21

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 5 in the 30 days before it.

After

  1. 1.913 km E of Bridgeport, Washington · 14993 days ago · 0 km deep · 27 km away
  2. 1.61 km N of Chelan Falls, Washington · 14990 days ago · 0 km deep · 41 km away
  3. 2.113 km E of Bridgeport, Washington · 14990 days ago · 0 km deep · 26 km away
  4. 1.83 km E of Manson, Washington · 14983 days ago · 0 km deep · 51 km away
  5. 2.10 km E of Entiat, Washington · 14977 days ago · 0 km deep · 57 km away
  6. 2.218 km E of Mansfield, Washington · 14974 days ago · 0 km deep · 6 km away
  7. 2.118 km NNW of Banks Lake South, Washington · 14973 days ago · 0 km deep · 4 km away
  8. 1.61 km NNW of Chelan Falls, Washington · 14971 days ago · 0 km deep · 41 km away
  9. 2.01 km SW of Quincy, Washington · 14970 days ago · 0 km deep · 68 km away
  10. 2.517 km NNW of Banks Lake South, Washington · 14970 days ago · 0 km deep · 4 km away
  11. 1.8Washington · 14967 days ago · 4 km deep · 52 km away
  12. 1.61 km NNW of Chelan Falls, Washington · 14967 days ago · -1 km deep · 41 km away
  13. 1.59 km WNW of Entiat, Washington · 14961 days ago · 4 km deep · 66 km away
  14. 3.29 km NNW of Entiat, Washington · 14957 days ago · 6 km deep · 61 km away
  15. 2.112 km SE of Bridgeport, Washington · 14956 days ago · 0 km deep · 19 km away
  16. 2.417 km NNW of Banks Lake South, Washington · 14955 days ago · 0 km deep · 3 km away
  17. 1.87 km N of Waterville, Washington · 14938 days ago · 5 km deep · 46 km away

Before

  1. 1.913 km E of Mansfield, Washington · 14997 days ago · -1 km deep · 6 km away
  2. 2.1Washington · 15001 days ago · 2 km deep · 65 km away
  3. 1.77 km N of Methow, Washington · 15006 days ago · -1 km deep · 63 km away
  4. 1.61 km N of Chelan Falls, Washington · 15019 days ago · 0 km deep · 41 km away
  5. 1.88 km SW of Warden, Washington · 15023 days ago · 0 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10191633. Read Tue, Sep 22, 2026, 7:46 PM UTC.