Washington earthquakes

M1.9 earthquake 36 km S of Morton, Washington

A magnitude 1.9 earthquake struck 36 km S of Morton, Washington on Wed, Apr 12, 1989, 3:21 PM PDT (22:21 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.1 17 km SW of Packwood, 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
1.9 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1989-04-12 22:21:04 UTC
Depth
0.5 km (0.3 mi), shallow
Epicenter
46.239° N, 122.183° 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 1.0 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
235°, poorly surrounded by stations
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.79 km SE of Kapowsin, Washington · 13685 days ago · 4 km deep · 76 km away
  2. 1.613 km NNE of Ashford, Washington · 13685 days ago · 10 km deep · 72 km away
  3. 1.738 km NNE of Amboy, Washington · 13681 days ago · 4 km deep · 4 km away
  4. 1.837 km NNE of Amboy, Washington · 13654 days ago · 4 km deep · 4 km away
  5. 1.623 km S of Morton, Washington · 13648 days ago · 10 km deep · 13 km away
  6. 1.821 km NNW of Amboy, Washington · 13644 days ago · 18 km deep · 31 km away
  7. 1.56 km NE of Amboy, Washington · 13643 days ago · 14 km deep · 36 km away
  8. 1.637 km NNE of Amboy, Washington · 13642 days ago · 5 km deep · 5 km away
  9. 2.117 km SW of Packwood, Washington · 13637 days ago · 8 km deep · 39 km away
  10. 2.13 km NNW of Packwood, Washington · 13628 days ago · 0 km deep · 58 km away

Before

  1. 2.220 km S of Morton, Washington · 13688 days ago · 11 km deep · 16 km away
  2. 1.93 km E of McKenna, Washington · 13690 days ago · 22 km deep · 81 km away
  3. 1.76 km WNW of Packwood, Washington · 13692 days ago · 10 km deep · 54 km away
  4. 1.538 km NNE of Amboy, Washington · 13692 days ago · 3 km deep · 4 km away
  5. 1.737 km NNE of Amboy, Washington · 13693 days ago · 5 km deep · 5 km away
  6. 1.5Washington · 13697 days ago · 22 km deep · 81 km away
  7. 2.05 km SSE of Mill Plain, Washington · 13697 days ago · 9 km deep · 75 km away
  8. 1.514 km NE of Ashford, Washington · 13705 days ago · 8 km deep · 72 km away
  9. 2.514 km NE of Ashford, Washington · 13705 days ago · 11 km deep · 72 km away
  10. 2.24 km SE of Skamokawa Valley, Washington · 13710 days ago · 22 km deep · 90 km away
  11. 2.125 km ENE of Ashford, Washington · 13710 days ago · -1 km deep · 78 km away
  12. 1.617 km SSE of Packwood, Washington · 13712 days ago · -1 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10241198. Read Fri, Oct 2, 2026, 6:04 AM UTC.