Washington earthquakes

M1.7 earthquake 6 km SE of Mineral, Washington

A magnitude 1.7 earthquake struck 6 km SE of Mineral, Washington on Fri, Mar 9, 1973, 12:09 AM PST (08:09 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M2.2 12 km NE 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
1.7 (md), micro
Local time
UTC
1973-03-09 08:09:04 UTC
Depth
16.1 km (10.0 mi), shallow
Epicenter
46.673° N, 122.130° 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 1.2 km horizontally, 3.9 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
222°, poorly surrounded by stations
Stations used
4

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 9 in the 30 days before it.

After

  1. 2.212 km NE of Ashford, Washington · 19550 days ago · 6 km deep · 25 km away
  2. 2.142 km NE of Amboy, Washington · 19549 days ago · 2 km deep · 55 km away
  3. 2.43 km NNE of Dash Point, Washington · 19539 days ago · 24 km deep · 78 km away
  4. 1.93 km ENE of McKenna, Washington · 19538 days ago · 31 km deep · 42 km away
  5. 1.76 km SE of Maplewood, Washington · 19531 days ago · 20 km deep · 81 km away
  6. 1.722 km ENE of Kalama, Washington · 19527 days ago · 32 km deep · 72 km away
  7. 3.029 km S of Morton, Washington · 19526 days ago · 16 km deep · 42 km away
  8. 2.38 km E of Hobart, Washington · 19525 days ago · 9 km deep · 85 km away
  9. 2.110 km SE of Mineral, Washington · 19525 days ago · 26 km deep · 5 km away
  10. 2.414 km NNE of Ashford, Washington · 19518 days ago · 1 km deep · 26 km away
  11. 1.93 km SW of Wilderness Rim, Washington · 19518 days ago · 18 km deep · 87 km away
  12. 2.02 km S of Wilderness Rim, Washington · 19515 days ago · 18 km deep · 88 km away
  13. 3.429 km S of Morton, Washington · 19514 days ago · 13 km deep · 42 km away
  14. 2.21 km N of Issaquah, Washington · 19513 days ago · 20 km deep · 97 km away
  15. 2.62 km SSE of DuPont, Washington · 19509 days ago · 26 km deep · 58 km away
  16. 2.615 km NNE of Ashford, Washington · 19503 days ago · 6 km deep · 28 km away
  17. 1.80 km SSW of Mercer Island, Washington · 19502 days ago · 22 km deep · 99 km away
  18. 2.64 km ENE of Allyn, Washington · 19502 days ago · 8 km deep · 95 km away

Before

  1. 2.77 km SE of Mineral, Washington · 19559 days ago · 19 km deep · 1 km away
  2. 2.531 km S of Mossyrock, Washington · 19565 days ago · 10 km deep · 52 km away
  3. 2.77 km SW of Morton, Washington · 19565 days ago · 15 km deep · 24 km away
  4. 2.11 km NNW of White Center, Washington · 19568 days ago · 24 km deep · 97 km away
  5. 1.62 km NNW of Kapowsin, Washington · 19568 days ago · 67 km deep · 38 km away
  6. 1.67 km SW of North Bend, Washington · 19568 days ago · 20 km deep · 89 km away
  7. 3.87 km W of Home, Washington · 19570 days ago · 21 km deep · 86 km away
  8. 1.65 km WSW of Mercer Island, Washington · 19579 days ago · 17 km deep · 98 km away
  9. 2.815 km SE of Ashford, Washington · 19583 days ago · 7 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10855948. Read Tue, Sep 22, 2026, 11:00 AM UTC.