Washington earthquakes

M1.9 earthquake 21 km E of Morton, Washington

A magnitude 1.9 earthquake struck 21 km E of Morton, Washington on Tue, Jun 26, 1973, 6:58 AM PDT (13:58 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M3.9 17 km ENE of Ashford, 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), micro
Local time
UTC
1973-06-26 13:58:25 UTC
Depth
15.6 km (9.7 mi), shallow
Epicenter
46.531° N, 121.997° 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 6.7 km horizontally, 8.7 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
236°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.73 km N of Fife Heights, Washington · 19439 days ago · 36 km deep · 89 km away
  2. 1.57 km SW of Tampico, Washington · 19435 days ago · 18 km deep · 82 km away
  3. 3.917 km ENE of Ashford, Washington · 19426 days ago · 6 km deep · 36 km away
  4. 2.417 km ENE of Ashford, Washington · 19426 days ago · 10 km deep · 37 km away
  5. 2.917 km ENE of Ashford, Washington · 19426 days ago · 7 km deep · 36 km away
  6. 1.50 km W of Auburn, Washington · 19425 days ago · 25 km deep · 88 km away
  7. 1.91 km ESE of Buckley, Washington · 19418 days ago · -1 km deep · 69 km away
  8. 1.75 km ENE of Sumner, Washington · 19403 days ago · 22 km deep · 79 km away
  9. 1.932 km E of Castle Rock, Washington · 19403 days ago · 19 km deep · 50 km away
  10. 1.97 km NNE of Bonney Lake, Washington · 19402 days ago · 26 km deep · 79 km away
  11. 1.72 km NW of Ravensdale, Washington · 19394 days ago · 5 km deep · 94 km away
  12. 1.913 km ENE of Ashford, Washington · 19392 days ago · 8 km deep · 31 km away

Before

  1. 1.7Washington · 19450 days ago · 13 km deep · 64 km away
  2. 2.05 km N of Ruston, Washington · 19460 days ago · 19 km deep · 98 km away
  3. 2.036 km SSE of Morton, Washington · 19471 days ago · 6 km deep · 33 km away
  4. 1.95 km NW of Dash Point, Washington · 19475 days ago · 12 km deep · 98 km away
  5. 2.812 km E of Wilkeson, Washington · 19477 days ago · 17 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10856483. Read Thu, Sep 24, 2026, 7:22 PM UTC.