Washington earthquakes

M1.8 earthquake 5 km WNW of Entiat, Washington

A magnitude 1.8 earthquake struck 5 km WNW of Entiat, Washington on Thu, May 12, 1983, 12:39 PM PDT (19:39 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.8 12 km S of Snoqualmie Pass, Washington. This one was a foreshock.

Entiat 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1983-05-12 19:39:43 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
47.687° N, 120.283° 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 0.0 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
122°
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: 13 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 2.812 km S of Snoqualmie Pass, Washington · 15841 days ago · 11 km deep · 96 km away
  2. 2.124 km NW of Soap Lake, Washington · 15839 days ago · 9 km deep · 45 km away
  3. 2.015 km ENE of Cliffdell, Washington · 15833 days ago · 6 km deep · 87 km away
  4. 1.53 km SW of Baring, Washington · 15825 days ago · 12 km deep · 93 km away
  5. 2.011 km SE of Snoqualmie Pass, Washington · 15822 days ago · 7 km deep · 88 km away
  6. 1.54 km E of Baring, Washington · 15821 days ago · 0 km deep · 86 km away
  7. 2.76 km WSW of Entiat, Washington · 15821 days ago · 4 km deep · 3 km away
  8. 1.512 km NE of Index, Washington · 15817 days ago · 1 km deep · 89 km away
  9. 1.86 km NNW of Waterville, Washington · 15800 days ago · 3 km deep · 15 km away
  10. 2.18 km SSE of Leavenworth, Washington · 15797 days ago · 8 km deep · 30 km away
  11. 1.81 km WSW of Entiat, Washington · 15797 days ago · 4 km deep · 4 km away
  12. 1.74 km NNE of Waterville, Washington · 15795 days ago · 6 km deep · 17 km away
  13. 2.22 km NNE of Entiat, Washington · 15792 days ago · 5 km deep · 7 km away

Before

  1. 2.29 km WNW of Snoqualmie Pass, Washington · 15855 days ago · 9 km deep · 97 km away
  2. 2.017 km ESE of Darrington, Washington · 15864 days ago · 2 km deep · 100 km away
  3. 1.78 km SSW of Baring, Washington · 15871 days ago · 85 km deep · 93 km away
  4. 1.88 km SSE of Leavenworth, Washington · 15879 days ago · 7 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10161643. Read Sat, Oct 3, 2026, 11:42 AM UTC.