Washington earthquakes

M1.5 earthquake 8 km SSW of Chelan Falls, Washington

A magnitude 1.5 earthquake struck 8 km SSW of Chelan Falls, Washington on Fri, Jul 27, 1984, 12:18 PM PDT (19:18 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.0 22 km WNW of Leavenworth, 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
1.5 (md), micro
Local time
UTC
1984-07-27 19:18:19 UTC
Depth
3.2 km (2.0 mi), shallow
Epicenter
47.731° N, 120.034° 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 2.1 km horizontally, 5.8 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
125°
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: 14 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.99 km SSE of Leavenworth, Washington · 15400 days ago · 0 km deep · 50 km away
  2. 1.812 km NNE of Sunnyslope, Washington · 15382 days ago · 6 km deep · 26 km away
  3. 1.919 km WSW of Electric City, Washington · 15382 days ago · 5 km deep · 58 km away
  4. 1.732 km NNW of Leavenworth, Washington · 15382 days ago · 8 km deep · 58 km away
  5. 1.66 km SSW of Disautel, Washington · 15376 days ago · 17 km deep · 85 km away
  6. 3.022 km WNW of Leavenworth, Washington · 15374 days ago · 0 km deep · 70 km away
  7. 1.77 km NNE of Entiat, Washington · 15369 days ago · 0 km deep · 12 km away
  8. 1.918 km W of Entiat, Washington · 15367 days ago · 19 km deep · 31 km away
  9. 2.3Washington · 15364 days ago · 0 km deep · 50 km away
  10. 1.89 km N of Banks Lake South, Washington · 15364 days ago · 10 km deep · 56 km away
  11. 1.714 km SW of Cascade Valley, Washington · 15357 days ago · 0 km deep · 89 km away
  12. 2.13 km SE of Entiat, Washington · 15353 days ago · -1 km deep · 13 km away
  13. 1.72 km SE of Entiat, Washington · 15352 days ago · 0 km deep · 14 km away
  14. 2.12 km SSW of Entiat, Washington · 15344 days ago · 2 km deep · 17 km away

Before

  1. 1.513 km SSE of Chelan Falls, Washington · 15406 days ago · 0 km deep · 11 km away
  2. 1.74 km W of Waterville, Washington · 15406 days ago · 0 km deep · 12 km away
  3. 2.121 km ENE of Moses Lake, Washington · 15411 days ago · 0 km deep · 98 km away
  4. 2.03 km SSE of Entiat, Washington · 15413 days ago · 0 km deep · 16 km away
  5. 1.95 km ENE of Entiat, Washington · 15413 days ago · 0 km deep · 9 km away
  6. 2.06 km N of Entiat, Washington · 15414 days ago · 0 km deep · 14 km away
  7. 1.98 km N of Waterville, Washington · 15421 days ago · 3 km deep · 3 km away
  8. 2.421 km ENE of Moses Lake, Washington · 15427 days ago · 9 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10178613. Read Sat, Sep 26, 2026, 8:45 PM UTC.