Washington earthquakes

M1.9 earthquake 26 km SE of Morton, Washington

A magnitude 1.9 earthquake struck 26 km SE of Morton, Washington on Tue, Oct 17, 1972, 5:13 PM PDT (00:13 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.1 17 km WSW 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
1.9 (md), micro
Local time
UTC
1972-10-18 00:13:58 UTC
Depth
12.7 km (7.9 mi), shallow
Epicenter
46.371° N, 122.058° 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, 6.3 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
283°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 2.117 km WSW of Packwood, Washington · 19695 days ago · 6 km deep · 23 km away
  2. 2.03 km ENE of Sumner, Washington · 19693 days ago · 13 km deep · 94 km away
  3. 2.416 km NNE of Ashford, Washington · 19691 days ago · 0 km deep · 58 km away
  4. 2.16 km NNE of Mossyrock, Washington · 19689 days ago · 32 km deep · 37 km away
  5. 1.816 km SSW of Morton, Washington · 19681 days ago · 19 km deep · 21 km away
  6. 2.010 km W of Odell, Oregon · 19680 days ago · 43 km deep · 90 km away
  7. 2.127 km S of Morton, Washington · 19674 days ago · 1 km deep · 15 km away
  8. 1.88 km ESE of Enumclaw, Washington · 19670 days ago · 16 km deep · 91 km away
  9. 3.12 km NE of Felida, Washington · 19668 days ago · 10 km deep · 87 km away
  10. 2.5Washington · 19662 days ago · 2 km deep · 13 km away
  11. 2.335 km SSE of Morton, Washington · 19661 days ago · 3 km deep · 12 km away
  12. 1.98 km E of Ashford, Washington · 19653 days ago · -1 km deep · 45 km away
  13. 2.59 km W of Packwood, Washington · 19645 days ago · 7 km deep · 32 km away
  14. 2.89 km ESE of Ashford, Washington · 19642 days ago · 9 km deep · 41 km away

Before

  1. 2.218 km ESE of Greenwater, Washington · 19702 days ago · 20 km deep · 97 km away
  2. 2.620 km SSE of Mossyrock, Washington · 19702 days ago · 15 km deep · 26 km away
  3. 2.421 km SSE of Mossyrock, Washington · 19702 days ago · 13 km deep · 26 km away
  4. 2.516 km SE of Carbonado, Washington · 19705 days ago · 7 km deep · 67 km away
  5. 2.213 km WSW of Greenwater, Washington · 19706 days ago · 8 km deep · 83 km away
  6. 2.019 km SSE of Mossyrock, Washington · 19708 days ago · 17 km deep · 26 km away
  7. 2.523 km S of Mossyrock, Washington · 19709 days ago · 39 km deep · 35 km away
  8. 1.64 km N of Bonney Lake, Washington · 19727 days ago · 12 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10854493. Read Tue, Sep 22, 2026, 8:22 PM UTC.