Washington earthquakes

M2.4 earthquake 12 km SE of Mossyrock, Washington

A magnitude 2.4 earthquake struck 12 km SE of Mossyrock, Washington on Fri, Jul 11, 1986, 8:35 PM PDT (03:35 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.7 14 km NNW of Carson, Washington. This one was a foreshock.

Mossyrock 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
2.4 (md), micro
Local time
UTC
1986-07-12 03:35:52 UTC
Depth
10.4 km (6.5 mi), shallow
Epicenter
46.437° N, 122.383° 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 0.4 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
44°
Stations used
41

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.77 km NNW of Tenino, Washington · 14669 days ago · 52 km deep · 66 km away
  2. 1.538 km NNE of Amboy, Washington · 14658 days ago · -1 km deep · 30 km away
  3. 2.714 km NNW of Carson, Washington · 14657 days ago · 9 km deep · 76 km away
  4. 1.736 km SSE of Morton, Washington · 14657 days ago · 9 km deep · 32 km away
  5. 1.537 km NNE of Amboy, Washington · 14648 days ago · -1 km deep · 30 km away
  6. 2.38 km NNW of Onalaska, Washington · 14640 days ago · 57 km deep · 38 km away
  7. 2.07 km NE of Ashford, Washington · 14637 days ago · 4 km deep · 52 km away
  8. 1.68 km S of Rainier, Washington · 14636 days ago · 7 km deep · 47 km away
  9. 2.810 km NE of Ashford, Washington · 14636 days ago · 11 km deep · 56 km away
  10. 2.714 km NNW of Carson, Washington · 14636 days ago · 8 km deep · 76 km away
  11. 1.538 km NNE of Amboy, Washington · 14635 days ago · -2 km deep · 30 km away
  12. 1.637 km NNE of Amboy, Washington · 14625 days ago · -2 km deep · 30 km away
  13. 1.738 km NNE of Amboy, Washington · 14624 days ago · -2 km deep · 30 km away
  14. 1.538 km NNE of Amboy, Washington · 14624 days ago · -2 km deep · 30 km away
  15. 2.138 km NNE of Amboy, Washington · 14623 days ago · -2 km deep · 30 km away

Before

  1. 1.828 km S of Mossyrock, Washington · 14684 days ago · 14 km deep · 18 km away
  2. 2.037 km NNE of Amboy, Washington · 14685 days ago · -1 km deep · 30 km away
  3. 1.538 km NNE of Amboy, Washington · 14693 days ago · -2 km deep · 30 km away
  4. 2.238 km NNE of Amboy, Washington · 14696 days ago · 0 km deep · 30 km away
  5. 2.29 km E of McKenna, Washington · 14707 days ago · 20 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10210683. Read Tue, Sep 22, 2026, 8:50 PM UTC.