Washington earthquakes

M2.2 earthquake 4 km SW of Entiat, Washington

A magnitude 2.2 earthquake struck 4 km SW of Entiat, Washington on Sat, Aug 8, 1987, 6:32 AM PDT (13:32 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.6 16 km NNW of Vantage, 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
2.2 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1987-08-08 13:32:36 UTC
Depth
-0.7 km (-0.4 mi), shallow
Epicenter
47.649° N, 120.247° 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
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
50°
Stations used
26

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 6 in the 30 days before it.

After

  1. 2.010 km WNW of Entiat, Washington · 14292 days ago · -1 km deep · 10 km away
  2. 2.06 km NE of Thorp, Washington · 14288 days ago · 8 km deep · 65 km away
  3. 2.27 km SSE of Okanogan, Washington · 14281 days ago · 0 km deep · 90 km away
  4. 2.136 km NE of Skykomish, Washington · 14275 days ago · 0 km deep · 68 km away
  5. 1.736 km NE of Skykomish, Washington · 14275 days ago · 0 km deep · 68 km away
  6. 1.75 km NNE of Entiat, Washington · 14262 days ago · -1 km deep · 10 km away
  7. 1.54 km N of Waterville, Washington · 14256 days ago · 2 km deep · 13 km away
  8. 1.513 km NE of Cliffdell, Washington · 14255 days ago · -1 km deep · 86 km away
  9. 2.09 km SSW of Chelan Falls, Washington · 14251 days ago · 2 km deep · 18 km away
  10. 2.041 km W of Winthrop, Washington · 14251 days ago · 4 km deep · 93 km away
  11. 2.112 km SSE of Okanogan, Washington · 14250 days ago · -1 km deep · 87 km away
  12. 1.516 km NNW of Vantage, Washington · 14246 days ago · 0 km deep · 65 km away
  13. 2.616 km NNW of Vantage, Washington · 14242 days ago · 0 km deep · 65 km away

Before

  1. 1.66 km WSW of Easton, Washington · 14304 days ago · 20 km deep · 90 km away
  2. 1.52 km SE of Entiat, Washington · 14315 days ago · 3 km deep · 5 km away
  3. 1.822 km ENE of Mansfield, Washington · 14318 days ago · 8 km deep · 71 km away
  4. 1.69 km N of Naches, Washington · 14319 days ago · 9 km deep · 98 km away
  5. 2.37 km N of Naches, Washington · 14320 days ago · 11 km deep · 100 km away
  6. 2.12 km W of Kittitas, Washington · 14324 days ago · 11 km deep · 76 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10221798. Read Sat, Oct 3, 2026, 9:27 AM UTC.