Washington earthquakes

M1.5 earthquake 12 km ENE of Mansfield, Washington

A magnitude 1.5 earthquake struck 12 km ENE of Mansfield, Washington on Thu, Aug 1, 1985, 12:41 PM PDT (19:41 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.6 1 km N of Chelan Falls, 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
1.5 (md), micro
Local time
UTC
1985-08-01 19:41:14 UTC
Depth
-0.2 km (-0.1 mi), shallow
Epicenter
47.840° N, 119.476° 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 2.9 km horizontally
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
107°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.61 km N of Chelan Falls, Washington · 15019 days ago · 0 km deep · 38 km away
  2. 1.77 km N of Methow, Washington · 15006 days ago · -1 km deep · 55 km away
  3. 2.1Washington · 15000 days ago · 2 km deep · 64 km away
  4. 1.913 km E of Mansfield, Washington · 14997 days ago · -1 km deep · 3 km away
  5. 2.415 km ESE of Mansfield, Washington · 14996 days ago · -1 km deep · 8 km away
  6. 1.913 km E of Bridgeport, Washington · 14993 days ago · 0 km deep · 19 km away
  7. 1.61 km N of Chelan Falls, Washington · 14990 days ago · 0 km deep · 38 km away
  8. 2.113 km E of Bridgeport, Washington · 14990 days ago · 0 km deep · 18 km away
  9. 1.83 km E of Manson, Washington · 14982 days ago · 0 km deep · 48 km away
  10. 2.10 km E of Entiat, Washington · 14977 days ago · 0 km deep · 57 km away
  11. 2.218 km E of Mansfield, Washington · 14974 days ago · 0 km deep · 7 km away
  12. 2.118 km NNW of Banks Lake South, Washington · 14972 days ago · 0 km deep · 10 km away
  13. 1.61 km NNW of Chelan Falls, Washington · 14971 days ago · 0 km deep · 39 km away
  14. 2.01 km SW of Quincy, Washington · 14970 days ago · 0 km deep · 74 km away
  15. 2.517 km NNW of Banks Lake South, Washington · 14970 days ago · 0 km deep · 10 km away
  16. 1.8Washington · 14967 days ago · 4 km deep · 51 km away

Before

  1. 2.35 km E of Entiat, Washington · 15029 days ago · 3 km deep · 53 km away
  2. 2.110 km WNW of Entiat, Washington · 15031 days ago · 6 km deep · 65 km away
  3. 1.5Washington · 15034 days ago · 0 km deep · 38 km away
  4. 2.714 km ESE of Mansfield, Washington · 15035 days ago · -1 km deep · 8 km away
  5. 2.514 km ESE of Mansfield, Washington · 15037 days ago · 0 km deep · 8 km away
  6. 1.58 km WSW of Entiat, Washington · 15039 days ago · -1 km deep · 66 km away
  7. 1.721 km NW of Granite Falls, Washington · 15039 days ago · 0 km deep · 72 km away
  8. 1.52 km SW of Entiat, Washington · 15044 days ago · 0 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10191823. Read Tue, Sep 22, 2026, 3:09 PM UTC.