Washington earthquakes

M2.9 earthquake 6 km SW of Morton, Washington

A magnitude 2.9 earthquake struck 6 km SW of Morton, Washington on Fri, Feb 25, 1977, 11:09 AM PST (19:09 UTC), 20 km (12 mi) below the surface.

Morton 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
2.9 (md), micro
Local time
UTC
1977-02-25 19:09:40 UTC
Depth
19.7 km (12.2 mi), shallow
Epicenter
46.507° N, 122.327° 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, 1.5 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
122°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.94 km SW of Morton, Washington · 18105 days ago · 22 km deep · 2 km away
  2. 2.315 km WSW of Greenwater, Washington · 18098 days ago · 8 km deep · 76 km away
  3. 2.54 km WSW of Onalaska, Washington · 18097 days ago · 28 km deep · 35 km away
  4. 2.6Puget Sound region, Washington · 18096 days ago · 21 km deep · 92 km away
  5. 1.71 km SSW of Federal Way, Washington · 18090 days ago · 20 km deep · 89 km away
  6. 2.1Puget Sound region, Washington · 18088 days ago · 64 km deep · 92 km away
  7. 2.316 km SE of Carbonado, Washington · 18084 days ago · 16 km deep · 62 km away
  8. 2.12 km SSE of Dash Point, Washington · 18081 days ago · 14 km deep · 89 km away
  9. 1.9Puget Sound region, Washington · 18080 days ago · 25 km deep · 92 km away
  10. 2.312 km SW of Mossyrock, Washington · 18078 days ago · -1 km deep · 22 km away
  11. 2.33 km NNE of Bonney Lake, Washington · 18077 days ago · 8 km deep · 78 km away
  12. 2.82 km N of Bonney Lake, Washington · 18076 days ago · 13 km deep · 78 km away
  13. 2.02 km SSW of Bonney Lake, Washington · 18076 days ago · 25 km deep · 73 km away
  14. 2.24 km ENE of Bonney Lake, WA · 18069 days ago · 24 km deep · 78 km away
  15. 2.42 km NNE of Bonney Lake, Washington · 18068 days ago · 18 km deep · 78 km away
  16. 2.2Washington · 18066 days ago · 19 km deep · 96 km away
  17. 1.94 km NE of Bonney Lake, Washington · 18061 days ago · 24 km deep · 78 km away
  18. 2.12 km E of Dash Point, Washington · 18053 days ago · 12 km deep · 91 km away
  19. 1.92 km ESE of Dash Point, Washington · 18053 days ago · 12 km deep · 90 km away

Before

  1. 2.412 km N of Ashford, Washington · 18112 days ago · 1 km deep · 47 km away
  2. 2.411 km SSW of Alder, Washington · 18116 days ago · 15 km deep · 22 km away
  3. 2.110 km ENE of Kalama, Washington · 18120 days ago · 0 km deep · 59 km away
  4. 2.510 km E of Kalama, Washington · 18120 days ago · 16 km deep · 61 km away
  5. 2.115 km SSE of Ashford, Washington · 18130 days ago · 42 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10843233. Read Tue, Sep 22, 2026, 7:08 AM UTC.