Washington earthquakes

M1.8 earthquake 8 km SSE of Leavenworth, Washington

A magnitude 1.8 earthquake struck 8 km SSE of Leavenworth, Washington on Tue, Apr 12, 1983, 4:24 PM PST (00:24 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M1.9 21 km SSE of Greenwater, Washington. This one was a foreshock.

Leavenworth 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
1.8 (md), micro
Local time
UTC
1983-04-13 00:24:57 UTC
Depth
7.2 km (4.5 mi), shallow
Epicenter
47.525° N, 120.635° 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 1.0 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
85°
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: 20 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.78 km SSW of Baring, Washington · 15860 days ago · 85 km deep · 70 km away
  2. 1.716 km SSW of Greenwater, Washington · 15859 days ago · -1 km deep · 98 km away
  3. 1.921 km SSE of Greenwater, Washington · 15853 days ago · 6 km deep · 88 km away
  4. 2.017 km ESE of Darrington, Washington · 15853 days ago · 2 km deep · 94 km away
  5. 2.014 km NNE of May Creek, Washington · 15851 days ago · 12 km deep · 85 km away
  6. 1.521 km SE of Greenwater, Washington · 15851 days ago · 6 km deep · 86 km away
  7. 1.74 km SSE of Carnation, Washington · 15846 days ago · 14 km deep · 95 km away
  8. 2.29 km WNW of Snoqualmie Pass, Washington · 15844 days ago · 9 km deep · 67 km away
  9. 2.022 km SE of Greenwater, Washington · 15842 days ago · 6 km deep · 87 km away
  10. 1.711 km WSW of Tieton, Washington · 15839 days ago · 0 km deep · 97 km away
  11. 1.85 km WNW of Entiat, Washington · 15839 days ago · 5 km deep · 32 km away
  12. 2.812 km S of Snoqualmie Pass, Washington · 15830 days ago · 11 km deep · 65 km away
  13. 2.124 km NW of Soap Lake, Washington · 15828 days ago · 9 km deep · 68 km away
  14. 3.08 km SW of Index, Washington · 15826 days ago · 10 km deep · 80 km away
  15. 2.00 km W of Fall City, Washington · 15825 days ago · 2 km deep · 95 km away
  16. 2.015 km ENE of Cliffdell, Washington · 15822 days ago · 6 km deep · 60 km away
  17. 1.53 km SW of Baring, Washington · 15814 days ago · 12 km deep · 72 km away
  18. 2.011 km SE of Snoqualmie Pass, Washington · 15811 days ago · 7 km deep · 56 km away
  19. 1.54 km E of Baring, Washington · 15810 days ago · 0 km deep · 65 km away
  20. 2.76 km WSW of Entiat, Washington · 15810 days ago · 4 km deep · 30 km away

Before

  1. 1.78 km S of Leavenworth, Washington · 15869 days ago · 1 km deep · 1 km away
  2. 1.97 km NE of North Bend, Washington · 15875 days ago · -1 km deep · 82 km away
  3. 2.26 km SSW of Chelan Falls, Washington · 15875 days ago · 4 km deep · 53 km away
  4. 1.52 km N of Skykomish, Washington · 15875 days ago · 1 km deep · 59 km away
  5. 2.710 km NNE of Snoqualmie, Washington · 15878 days ago · 12 km deep · 85 km away
  6. 2.32 km S of Chelan, Washington · 15885 days ago · 7 km deep · 57 km away
  7. 2.11 km S of Lake Marcel-Stillwater, Washington · 15887 days ago · 12 km deep · 98 km away
  8. 1.82 km ESE of Wilderness Rim, Washington · 15888 days ago · 2 km deep · 83 km away
  9. 1.83 km ESE of Wilderness Rim, Washington · 15888 days ago · 1 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10157613. Read Tue, Sep 22, 2026, 10:55 AM UTC.