Washington earthquakes

M2.1 earthquake 3 km NNE of Packwood, Washington

A magnitude 2.1 earthquake struck 3 km NNE of Packwood, Washington on Sun, Jul 31, 1983, 1:27 PM PDT (20:27 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.1 7 km ENE of Tanner, 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
2.1 (md), micro
Local time
UTC
1983-07-31 20:27:17 UTC
Depth
4.2 km (2.6 mi), shallow
Epicenter
46.633° N, 121.656° 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 0.4 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
56°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.838 km NNE of Amboy, Washington · 15755 days ago · -2 km deep · 62 km away
  2. 3.17 km ENE of Tanner, Washington · 15747 days ago · 12 km deep · 96 km away
  3. 1.539 km S of Morton, Washington · 15743 days ago · -2 km deep · 62 km away
  4. 2.238 km NNE of Amboy, Washington · 15733 days ago · -1 km deep · 62 km away
  5. 1.615 km NNE of Packwood, Washington · 15732 days ago · 2 km deep · 13 km away
  6. 1.920 km ENE of Ashford, Washington · 15732 days ago · 0 km deep · 24 km away
  7. 1.91 km WNW of Federal Way, Washington · 15726 days ago · 16 km deep · 93 km away
  8. 2.227 km S of Greenwater, Washington · 15724 days ago · -1 km deep · 31 km away
  9. 2.238 km S of Morton, Washington · 15717 days ago · -1 km deep · 62 km away
  10. 1.823 km ESE of Packwood, Washington · 15716 days ago · -1 km deep · 24 km away
  11. 2.211 km ESE of Carbonado, Washington · 15714 days ago · 18 km deep · 49 km away
  12. 2.310 km SE of Mossyrock, Washington · 15713 days ago · 14 km deep · 59 km away
  13. 1.638 km NNE of Amboy, Washington · 15709 days ago · -1 km deep · 63 km away
  14. 2.025 km SSE of Packwood, Washington · 15704 days ago · -1 km deep · 28 km away
  15. 2.125 km SSE of Packwood, Washington · 15702 days ago · 0 km deep · 28 km away
  16. 1.625 km SSE of Packwood, Washington · 15701 days ago · 0 km deep · 28 km away

Before

  1. 1.82 km SSW of Browns Point, Washington · 15760 days ago · 8 km deep · 94 km away
  2. 1.62 km WSW of Wilderness Rim, Washington · 15761 days ago · 19 km deep · 90 km away
  3. 2.210 km N of Mossyrock, Washington · 15764 days ago · 17 km deep · 63 km away
  4. 1.838 km NNE of Amboy, Washington · 15770 days ago · -2 km deep · 63 km away
  5. 2.212 km SW of Nile, Washington · 15770 days ago · 4 km deep · 49 km away
  6. 1.612 km SSW of Packwood, Washington · 15773 days ago · 1 km deep · 16 km away
  7. 1.538 km NNE of Amboy, Washington · 15778 days ago · -2 km deep · 62 km away
  8. 1.72 km SSE of Browns Point, Washington · 15780 days ago · 3 km deep · 93 km away
  9. 1.638 km NNE of Amboy, Washington · 15782 days ago · -2 km deep · 63 km away
  10. 2.45 km ENE of Chehalis, Washington · 15783 days ago · 52 km deep · 95 km away
  11. 2.020 km SW of Tampico, Washington · 15784 days ago · -1 km deep · 53 km away
  12. 1.838 km S of Morton, Washington · 15784 days ago · -2 km deep · 61 km away
  13. 1.739 km NNE of Amboy, Washington · 15785 days ago · 0 km deep · 62 km away
  14. 1.738 km NNE of Amboy, Washington · 15785 days ago · -2 km deep · 63 km away
  15. 2.138 km NNE of Amboy, Washington · 15786 days ago · -2 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10164163. Read Tue, Sep 22, 2026, 10:01 AM UTC.