Washington earthquakes

M2.0 earthquake 4 km E of Mossyrock, Washington

A magnitude 2.0 earthquake struck 4 km E of Mossyrock, Washington on Sun, Sep 9, 1990, 5:39 AM PDT (12:39 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M3.0 3 km S of Shelton, 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.

Open the live map with earthquakes

The earthquake

Magnitude
2.0 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-09-09 12:39:48 UTC
Depth
20.4 km (12.7 mi), shallow
Epicenter
46.527° N, 122.423° 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, 0.5 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
44°
Stations used
42

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.717 km ENE of Ashford, Washington · 13171 days ago · -1 km deep · 57 km away
  2. 1.524 km ENE of Ashford, Washington · 13171 days ago · -2 km deep · 64 km away
  3. 1.537 km NNE of Amboy, Washington · 13170 days ago · 5 km deep · 41 km away
  4. 3.03 km S of Shelton, Washington · 13170 days ago · 17 km deep · 89 km away
  5. 2.7Washington · 13166 days ago · 20 km deep · 54 km away
  6. 2.237 km NNE of Amboy, Washington · 13164 days ago · -2 km deep · 41 km away
  7. 1.525 km ENE of Ashford, Washington · 13162 days ago · -2 km deep · 64 km away
  8. 1.614 km NNW of Amboy, Washington · 13159 days ago · 19 km deep · 56 km away
  9. 2.638 km NNE of Amboy, Washington · 13156 days ago · 0 km deep · 40 km away
  10. 1.638 km NE of Amboy, Washington · 13156 days ago · -1 km deep · 42 km away
  11. 2.93 km ENE of Kelso, Washington · 13152 days ago · 22 km deep · 53 km away
  12. 2.63 km ENE of Kelso, Washington · 13152 days ago · 21 km deep · 53 km away
  13. 1.65 km ESE of West Side Highway, Washington · 13151 days ago · 19 km deep · 51 km away
  14. 2.019 km S of Morton, Washington · 13148 days ago · 19 km deep · 20 km away
  15. 2.027 km ENE of Ashford, Washington · 13139 days ago · -2 km deep · 67 km away
  16. 1.55 km NW of Federal Way, Washington · 13133 days ago · 18 km deep · 93 km away
  17. 1.724 km SE of Carbonado, Washington · 13125 days ago · -1 km deep · 66 km away
  18. 1.736 km NNE of Amboy, Washington · 13125 days ago · -2 km deep · 42 km away
  19. 1.738 km NNE of Amboy, Washington · 13125 days ago · -2 km deep · 40 km away
  20. 2.315 km ESE of Kapowsin, Washington · 13121 days ago · 6 km deep · 51 km away
  21. 1.615 km ESE of Kapowsin, Washington · 13121 days ago · 6 km deep · 51 km away
  22. 1.926 km ENE of Ashford, Washington · 13118 days ago · -2 km deep · 66 km away
  23. 2.036 km S of Morton, Washington · 13114 days ago · 0 km deep · 37 km away

Before

  1. 2.337 km NNE of Amboy, Washington · 13172 days ago · -1 km deep · 41 km away
  2. 1.537 km NE of Amboy, Washington · 13176 days ago · 14 km deep · 56 km away
  3. 1.637 km NNE of Amboy, Washington · 13176 days ago · 0 km deep · 41 km away
  4. 1.838 km NNE of Amboy, Washington · 13179 days ago · 0 km deep · 40 km away
  5. 2.138 km NNE of Amboy, Washington · 13179 days ago · 0 km deep · 40 km away
  6. 1.537 km NNE of Amboy, Washington · 13179 days ago · 1 km deep · 40 km away
  7. 2.224 km N of Packwood, Washington · 13179 days ago · -1 km deep · 64 km away
  8. 1.95 km WSW of Black Diamond, Washington · 13181 days ago · 20 km deep · 88 km away
  9. 1.538 km NNE of Amboy, Washington · 13182 days ago · 2 km deep · 41 km away
  10. 1.723 km N of Packwood, Washington · 13186 days ago · 3 km deep · 62 km away
  11. 1.537 km NNE of Amboy, Washington · 13186 days ago · 3 km deep · 41 km away
  12. 1.61 km S of Normandy Park, Washington · 13188 days ago · 15 km deep · 99 km away
  13. 2.038 km NNE of Amboy, Washington · 13194 days ago · -2 km deep · 41 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10262468. Read Fri, Oct 2, 2026, 4:10 AM UTC.