Washington earthquakes

M1.5 earthquake 23 km S of Morton, Washington

A magnitude 1.5 earthquake struck 23 km S of Morton, Washington on Tue, Oct 15, 1974, 11:26 PM PDT (06:26 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.8 5 km SE of Bucoda, Washington. This one was a foreshock.

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
1.5 (md), micro
Local time
UTC
1974-10-16 06:26:46 UTC
Depth
5.9 km (3.7 mi), shallow
Epicenter
46.350° N, 122.282° 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 2.0 km horizontally, 5.5 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
132°
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.08 km NNE of Pe Ell, Washington · 18974 days ago · 5 km deep · 80 km away
  2. 2.126 km W of Trout Lake, Washington · 18972 days ago · -1 km deep · 47 km away
  3. 1.83 km E of Battle Ground, Washington · 18972 days ago · 13 km deep · 65 km away
  4. 1.96 km WSW of La Grande, Washington · 18969 days ago · 62 km deep · 53 km away
  5. 1.96 km SSE of Carbonado, Washington · 18962 days ago · -1 km deep · 78 km away
  6. 1.97 km WNW of Ryderwood, Washington · 18962 days ago · 18 km deep · 66 km away
  7. 2.218 km SSE of Carbonado, Washington · 18957 days ago · 3 km deep · 68 km away
  8. 1.67 km ESE of Enumclaw, Washington · 18957 days ago · 1 km deep · 97 km away
  9. 2.214 km N of Onalaska, Washington · 18957 days ago · -1 km deep · 50 km away
  10. 1.930 km SSE of Mossyrock, Washington · 18955 days ago · 36 km deep · 9 km away
  11. 2.85 km SE of Bucoda, Washington · 18954 days ago · 3 km deep · 62 km away
  12. 2.010 km SE of Ashford, Washington · 18949 days ago · 30 km deep · 48 km away
  13. 1.67 km WSW of Mineral, Washington · 18948 days ago · 25 km deep · 37 km away
  14. 2.213 km W of Packwood, Washington · 18948 days ago · 5 km deep · 43 km away
  15. 1.89 km ESE of Enumclaw, Washington · 18944 days ago · 8 km deep · 98 km away
  16. 2.120 km ENE of Ashford, Washington · 18943 days ago · 5 km deep · 67 km away
  17. 2.021 km NNE of Packwood, Washington · 18939 days ago · 3 km deep · 73 km away
  18. 1.819 km WSW of Packwood, Washington · 18935 days ago · 5 km deep · 35 km away
  19. 1.514 km SW of Alder, Washington · 18933 days ago · 26 km deep · 42 km away
  20. 1.721 km S of Morton, Washington · 18931 days ago · 8 km deep · 4 km away
  21. 1.512 km S of Pe Ell, Washington · 18927 days ago · -1 km deep · 77 km away
  22. 1.911 km ENE of Ashford, Washington · 18923 days ago · 3 km deep · 58 km away
  23. 2.11 km NW of Bethany, Oregon · 18922 days ago · 17 km deep · 98 km away

Before

  1. 1.630 km S of Morton, Washington · 18978 days ago · 32 km deep · 8 km away
  2. 2.45 km SE of Rainier, Washington · 18980 days ago · -1 km deep · 62 km away
  3. 2.520 km S of Morton, Washington · 18987 days ago · 8 km deep · 4 km away
  4. 2.234 km SSE of Morton, Washington · 18991 days ago · 5 km deep · 19 km away
  5. 2.47 km N of Lewisville, Washington · 19000 days ago · 2 km deep · 56 km away
  6. 1.911 km SE of Ashford, Washington · 19004 days ago · 2 km deep · 48 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10859608. Read Wed, Sep 30, 2026, 6:13 PM UTC.