Washington earthquakes

M2.4 earthquake 18 km NNE of Packwood, Washington

A magnitude 2.4 earthquake struck 18 km NNE of Packwood, Washington on Sat, Apr 20, 1974, 11:04 PM PDT (06:04 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M3.5 20 km ENE of Packwood, 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
2.4 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1974-04-21 06:04:00 UTC
Depth
0.6 km (0.4 mi), shallow
Epicenter
46.746° N, 121.551° 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 1.6 km horizontally, 2.3 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
281°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 3.520 km ENE of Packwood, Washington · 19157 days ago · 3 km deep · 11 km away
  2. 1.820 km NE of Packwood, Washington · 19155 days ago · 5 km deep · 3 km away
  3. 2.14 km N of Packwood, Washington · 19152 days ago · 6 km deep · 15 km away
  4. 2.222 km NE of Packwood, Washington · 19152 days ago · 5 km deep · 6 km away
  5. 1.525 km ENE of Ashford, Washington · 19138 days ago · 6 km deep · 22 km away
  6. 2.025 km N of Packwood, Washington · 19131 days ago · 8 km deep · 15 km away
  7. 2.117 km NE of Snoqualmie, Washington · 19129 days ago · 3 km deep · 100 km away
  8. 3.533 km NE of Amboy, Washington · 19127 days ago · 11 km deep · 82 km away
  9. 1.64 km SW of Wilderness Rim, Washington · 19126 days ago · 21 km deep · 78 km away
  10. 1.93 km SW of Wilderness Rim, Washington · 19126 days ago · 18 km deep · 78 km away
  11. 3.03 km WSW of Ravensdale, Washington · 19126 days ago · 18 km deep · 75 km away
  12. 1.93 km NE of Maple Heights-Lake Desire, Washington · 19124 days ago · 11 km deep · 89 km away
  13. 2.22 km WNW of Hobart, Washington · 19124 days ago · 15 km deep · 83 km away
  14. 1.70 km E of Ravensdale, Washington · 19121 days ago · 16 km deep · 75 km away
  15. 1.61 km SSW of Ravensdale, Washington · 19121 days ago · 18 km deep · 74 km away
  16. 2.26 km NW of Roy, Washington · 19114 days ago · 12 km deep · 86 km away
  17. 1.516 km WSW of Alder, Washington · 19109 days ago · 28 km deep · 71 km away
  18. 1.813 km NE of Ashford, Washington · 19107 days ago · 5 km deep · 31 km away
  19. 2.114 km NE of Ashford, Washington · 19106 days ago · 12 km deep · 28 km away
  20. 1.711 km SE of Ashford, Washington · 19105 days ago · 7 km deep · 29 km away
  21. 1.90 km SW of Lakeland South, Washington · 19103 days ago · 8 km deep · 81 km away
  22. 1.94 km SW of Wilderness Rim, Washington · 19099 days ago · 17 km deep · 77 km away

Before

  1. 1.65 km WSW of Wilderness Rim, Washington · 19158 days ago · 16 km deep · 80 km away
  2. 1.50 km WNW of Maple Valley, Washington · 19158 days ago · 2 km deep · 82 km away
  3. 2.321 km NE of Packwood, Washington · 19159 days ago · 4 km deep · 4 km away
  4. 4.719 km NE of Packwood, Washington · 19159 days ago · 4 km deep · 7 km away
  5. 1.922 km NE of Packwood, Washington · 19159 days ago · -1 km deep · 10 km away
  6. 1.58 km NNE of Ashford, Washington · 19161 days ago · 7 km deep · 33 km away
  7. 2.4Washington · 19163 days ago · 24 km deep · 27 km away
  8. 1.88 km E of Ashford, Washington · 19163 days ago · 19 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10858513. Read Fri, Oct 2, 2026, 3:52 PM UTC.