Washington earthquakes

M1.7 earthquake 4 km W of Waterville, Washington

A magnitude 1.7 earthquake struck 4 km W of Waterville, Washington on Sun, Jul 22, 1984, 4:46 AM PDT (11:46 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.9 8 km SW of Royal City, Washington. This one was a foreshock.

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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
1984-07-22 11:46:39 UTC
Depth
-0.2 km (-0.1 mi), shallow
Epicenter
47.642° N, 120.133° 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 0.5 km horizontally
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
104°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.98 km SW of Royal City, Washington · 15402 days ago · 0 km deep · 95 km away
  2. 1.513 km SSE of Chelan Falls, Washington · 15401 days ago · 0 km deep · 19 km away
  3. 1.58 km SSW of Chelan Falls, Washington · 15397 days ago · 3 km deep · 12 km away
  4. 1.99 km SSE of Leavenworth, Washington · 15396 days ago · 0 km deep · 39 km away
  5. 1.812 km NNE of Sunnyslope, Washington · 15378 days ago · 6 km deep · 14 km away
  6. 1.919 km WSW of Electric City, Washington · 15378 days ago · 5 km deep · 68 km away
  7. 1.732 km NNW of Leavenworth, Washington · 15378 days ago · 8 km deep · 55 km away
  8. 1.66 km SSW of Disautel, Washington · 15372 days ago · 17 km deep · 97 km away
  9. 3.022 km WNW of Leavenworth, Washington · 15370 days ago · 0 km deep · 62 km away
  10. 1.77 km NNE of Entiat, Washington · 15365 days ago · 0 km deep · 12 km away
  11. 1.918 km W of Entiat, Washington · 15362 days ago · 19 km deep · 24 km away
  12. 2.3Washington · 15360 days ago · 0 km deep · 59 km away
  13. 1.89 km N of Banks Lake South, Washington · 15360 days ago · 10 km deep · 64 km away
  14. 1.714 km SW of Cascade Valley, Washington · 15353 days ago · 0 km deep · 85 km away
  15. 2.13 km SE of Entiat, Washington · 15349 days ago · -1 km deep · 3 km away
  16. 1.72 km SE of Entiat, Washington · 15348 days ago · 0 km deep · 4 km away

Before

  1. 1.77 km S of Easton, Washington · 15405 days ago · -1 km deep · 95 km away
  2. 2.121 km ENE of Moses Lake, Washington · 15407 days ago · 0 km deep · 99 km away
  3. 2.03 km SSE of Entiat, Washington · 15409 days ago · 0 km deep · 5 km away
  4. 1.95 km ENE of Entiat, Washington · 15409 days ago · 0 km deep · 6 km away
  5. 2.06 km N of Entiat, Washington · 15409 days ago · 0 km deep · 12 km away
  6. 1.98 km N of Waterville, Washington · 15417 days ago · 3 km deep · 10 km away
  7. 1.87 km SW of Royal City, Washington · 15418 days ago · 0 km deep · 95 km away
  8. 2.421 km ENE of Moses Lake, Washington · 15423 days ago · 9 km deep · 98 km away
  9. 1.94 km NNE of Chelan Falls, Washington · 15428 days ago · 0 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10177643. Read Tue, Sep 22, 2026, 5:16 PM UTC.