Washington earthquakes

M1.5 earthquake 2 km NNE of Chelan Falls, Washington

A magnitude 1.5 earthquake struck 2 km NNE of Chelan Falls, Washington on Mon, May 20, 1985, 6:10 PM PDT (01:10 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.1 16 km E of Mansfield, Washington. This one was a foreshock.

Chelan forecastMore in Washington

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
1985-05-21 01:10:42 UTC
Depth
-0.7 km (-0.5 mi), shallow
Epicenter
47.820° N, 119.980° 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, 0.1 km in depth
Magnitude uncertainty
±0.11
Depth from
Operator assigned
Station coverage gap
117°
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: 15 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.116 km E of Mansfield, Washington · 15099 days ago · 1 km deep · 42 km away
  2. 2.413 km NNW of Vantage, Washington · 15096 days ago · 0 km deep · 86 km away
  3. 2.216 km SE of Okanogan, Washington · 15096 days ago · 5 km deep · 65 km away
  4. 1.77 km W of Entiat, Washington · 15088 days ago · 3 km deep · 30 km away
  5. 1.90 km WSW of Quincy, Washington · 15085 days ago · 0 km deep · 66 km away
  6. 1.918 km E of Mansfield, Washington · 15079 days ago · 0 km deep · 45 km away
  7. 3.014 km NNW of Vantage, Washington · 15072 days ago · 0 km deep · 85 km away
  8. 1.810 km NW of Vantage, Washington · 15072 days ago · 0 km deep · 89 km away
  9. 1.511 km NNW of Vantage, Washington · 15072 days ago · 0 km deep · 87 km away
  10. 2.29 km N of Waterville, Washington · 15071 days ago · 3 km deep · 11 km away
  11. 1.73 km NNE of Waterville, Washington · 15068 days ago · 7 km deep · 17 km away
  12. 1.79 km ESE of Chelan Falls, Washington · 15065 days ago · 9 km deep · 10 km away
  13. 2.50 km W of Quincy, Washington · 15063 days ago · 2 km deep · 66 km away
  14. 2.313 km S of Leavenworth, Washington · 15058 days ago · -1 km deep · 64 km away
  15. 1.52 km SW of Entiat, Washington · 15043 days ago · 0 km deep · 26 km away

Before

  1. 1.718 km N of Winthrop, Washington · 15103 days ago · -1 km deep · 93 km away
  2. 1.515 km SW of Disautel, Washington · 15113 days ago · 0 km deep · 67 km away
  3. 2.022 km ESE of Malott, Washington · 15120 days ago · 0 km deep · 57 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10191033. Read Tue, Sep 22, 2026, 10:07 AM UTC.