Washington earthquakes

M1.8 earthquake 22 km S of Morton, Washington

A magnitude 1.8 earthquake struck 22 km S of Morton, Washington on Fri, Jan 20, 1989, 6:19 AM PST (14:19 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M2.7 33 km WSW of Tampico, 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
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1989-01-20 14:19:26 UTC
Depth
8.7 km (5.4 mi), shallow
Epicenter
46.358° N, 122.232° 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 0.3 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
50°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.733 km WSW of Tampico, Washington · 13769 days ago · 2 km deep · 74 km away
  2. 1.538 km NNE of Amboy, Washington · 13768 days ago · -1 km deep · 18 km away
  3. 2.78 km N of Packwood, Washington · 13766 days ago · 3 km deep · 55 km away
  4. 1.66 km WSW of Packwood, Washington · 13766 days ago · 9 km deep · 44 km away
  5. 1.738 km SSE of Morton, Washington · 13764 days ago · 8 km deep · 17 km away
  6. 1.814 km E of Wilkeson, Washington · 13747 days ago · 3 km deep · 87 km away
  7. 1.737 km NNE of Amboy, Washington · 13743 days ago · 3 km deep · 18 km away
  8. 2.238 km NNE of Amboy, Washington · 13742 days ago · 3 km deep · 17 km away
  9. 1.638 km NNE of Amboy, Washington · 13742 days ago · 3 km deep · 17 km away
  10. 2.44 km E of McKenna, Washington · 13736 days ago · 22 km deep · 67 km away
  11. 1.64 km E of McKenna, Washington · 13736 days ago · 21 km deep · 67 km away
  12. 1.63 km E of McKenna, Washington · 13735 days ago · 22 km deep · 67 km away
  13. 1.53 km E of McKenna, Washington · 13734 days ago · 20 km deep · 68 km away
  14. 2.013 km ESE of Enumclaw, Washington · 13732 days ago · 13 km deep · 94 km away
  15. 1.638 km NNE of Amboy, Washington · 13731 days ago · -1 km deep · 18 km away
  16. 1.617 km SSE of Packwood, Washington · 13715 days ago · -1 km deep · 49 km away
  17. 2.125 km ENE of Ashford, Washington · 13713 days ago · -1 km deep · 68 km away
  18. 2.24 km SE of Skamokawa Valley, Washington · 13713 days ago · 22 km deep · 86 km away

Before

  1. 2.712 km WSW of Packwood, Washington · 13778 days ago · 3 km deep · 39 km away
  2. 3.012 km WSW of Packwood, Washington · 13778 days ago · 3 km deep · 38 km away
  3. 2.911 km NNE of Ashford, Washington · 13792 days ago · 8 km deep · 59 km away
  4. 1.535 km NNE of Amboy, Washington · 13792 days ago · 9 km deep · 18 km away
  5. 1.621 km SSE of Mossyrock, Washington · 13796 days ago · 7 km deep · 13 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10242188. Read Sun, Oct 4, 2026, 9:51 PM UTC.