Washington earthquakes

M1.9 earthquake 4 km SW of Chelan Falls, Washington

A magnitude 1.9 earthquake struck 4 km SW of Chelan Falls, Washington on Sat, Sep 3, 1983, 2:32 AM PDT (09:32 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.4 11 km NW of Entiat, 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
1.9 (md), micro
Local time
UTC
1983-09-03 09:32:16 UTC
Depth
3.3 km (2.0 mi), shallow
Epicenter
47.768° N, 120.022° 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 1.1 km horizontally, 1.7 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
109°
Stations used
9

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 4 in the 30 days before it.

After

  1. 2.411 km NW of Entiat, Washington · 15715 days ago · 3 km deep · 23 km away
  2. 2.56 km NW of Entiat, Washington · 15715 days ago · 4 km deep · 20 km away
  3. 2.66 km NW of Entiat, Washington · 15715 days ago · 4 km deep · 20 km away
  4. 1.55 km WSW of Waterville, Washington · 15709 days ago · 0 km deep · 17 km away
  5. 2.15 km SSE of Entiat, Washington · 15704 days ago · 5 km deep · 20 km away
  6. 1.54 km SSW of West Wenatchee, Washington · 15700 days ago · 8 km deep · 48 km away
  7. 2.013 km N of Quincy, Washington · 15700 days ago · 0 km deep · 47 km away
  8. 1.68 km N of Entiat, Washington · 15700 days ago · 5 km deep · 14 km away
  9. 1.54 km N of Entiat, Washington · 15691 days ago · 0 km deep · 15 km away
  10. 2.023 km E of Mansfield, Washington · 15690 days ago · 3 km deep · 52 km away
  11. 1.69 km NNE of Waterville, Washington · 15684 days ago · 4 km deep · 6 km away
  12. 1.52 km W of Entiat, Washington · 15683 days ago · 0 km deep · 19 km away
  13. 2.13 km E of Cle Elum, Washington · 15681 days ago · -1 km deep · 91 km away
  14. 1.64 km W of Entiat, Washington · 15679 days ago · 5 km deep · 21 km away
  15. 1.65 km NNE of Entiat, Washington · 15673 days ago · 0 km deep · 13 km away
  16. 2.28 km S of Leavenworth, Washington · 15671 days ago · 1 km deep · 54 km away
  17. 1.86 km N of Waterville, Washington · 15666 days ago · 0 km deep · 8 km away

Before

  1. 1.937 km WSW of Winthrop, Washington · 15734 days ago · 5 km deep · 77 km away
  2. 1.640 km WSW of Twisp, Washington · 15734 days ago · 6 km deep · 73 km away
  3. 1.812 km SW of Methow, Washington · 15740 days ago · 19 km deep · 35 km away
  4. 1.64 km S of Entiat, Washington · 15753 days ago · 0 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10159243. Read Wed, Sep 23, 2026, 3:33 AM UTC.