Washington earthquakes

M2.5 earthquake 6 km N of Waterville, Washington

A magnitude 2.5 earthquake struck 6 km N of Waterville, Washington on Sun, Feb 3, 1991, 3:43 PM PST (23:43 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.3 8 km W of Entiat, Washington. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1991-02-03 23:43:01 UTC
Depth
3.8 km (2.3 mi), shallow
Epicenter
47.709° N, 120.088° 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, 1.6 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
70°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 3.110 km SW of Pateros, Washington · 13013 days ago · 7 km deep · 30 km away
  2. 1.78 km N of Entiat, Washington · 13013 days ago · 0 km deep · 10 km away
  3. 1.911 km SW of Ellensburg, Washington · 13004 days ago · 7 km deep · 97 km away
  4. 1.89 km SW of Royal City, Washington · 12985 days ago · 3 km deep · 99 km away
  5. 1.610 km SW of Royal City, Washington · 12985 days ago · 2 km deep · 100 km away
  6. 1.89 km WSW of Royal City, Washington · 12984 days ago · 0 km deep · 98 km away
  7. 2.39 km SW of Royal City, Washington · 12981 days ago · 3 km deep · 100 km away
  8. 3.38 km W of Entiat, Washington · 12972 days ago · -1 km deep · 18 km away
  9. 2.713 km W of Mansfield, Washington · 12966 days ago · 0 km deep · 24 km away

Before

  1. 2.59 km WSW of Chelan Falls, Washington · 13028 days ago · 6 km deep · 6 km away
  2. 2.413 km W of Entiat, Washington · 13041 days ago · -1 km deep · 22 km away
  3. 2.44 km W of Entiat, Washington · 13048 days ago · 3 km deep · 14 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10268948. Read Thu, Oct 1, 2026, 10:07 PM UTC.