Washington earthquakes

M1.7 earthquake 3 km ENE of Entiat, Washington

A magnitude 1.7 earthquake struck 3 km ENE of Entiat, Washington on Wed, Feb 26, 1986, 9:18 AM PST (17:18 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.1 10 km SW of Ellensburg, 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
1.7 (md), micro
Local time
UTC
1986-02-26 17:18:28 UTC
Depth
4.3 km (2.7 mi), shallow
Epicenter
47.684° N, 120.159° 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 0.4 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
63°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.110 km SW of Ellensburg, Washington · 14812 days ago · 4 km deep · 91 km away
  2. 1.58 km S of Chelan Falls, Washington · 14808 days ago · 4 km deep · 13 km away
  3. 1.65 km ENE of Manson, Washington · 14806 days ago · -1 km deep · 24 km away
  4. 1.68 km S of Chelan Falls, Washington · 14805 days ago · 4 km deep · 13 km away
  5. 2.49 km SW of Royal City, Washington · 14802 days ago · 3 km deep · 98 km away
  6. 1.919 km SSW of Disautel, Washington · 14786 days ago · 0 km deep · 85 km away
  7. 1.95 km ENE of Entiat, Washington · 14777 days ago · 4 km deep · 2 km away
  8. 3.310 km N of Entiat, Washington · 14777 days ago · 13 km deep · 11 km away
  9. 1.810 km W of Mansfield, Washington · 14776 days ago · 11 km deep · 33 km away
  10. 2.611 km SW of Quincy, Washington · 14776 days ago · 3 km deep · 60 km away
  11. 2.313 km N of Almira, Washington · 14772 days ago · 6 km deep · 93 km away
  12. 1.52 km WSW of Entiat, Washington · 14768 days ago · 8 km deep · 6 km away

Before

  1. 1.713 km WNW of Leavenworth, Washington · 14837 days ago · 12 km deep · 51 km away
  2. 1.65 km NNE of Waterville, Washington · 14847 days ago · 7 km deep · 8 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10203533. Read Tue, Sep 22, 2026, 11:14 AM UTC.