Washington earthquakes

M2.1 earthquake 17 km ESE of Carbonado, Washington

A magnitude 2.1 earthquake struck 17 km ESE of Carbonado, Washington on Mon, Sep 30, 1985, 9:47 AM PDT (16:47 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M2.7 0 km ENE of Riverbend, Washington. This one was a foreshock.

Carbonado 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
2.1 (md), micro
Local time
UTC
1985-09-30 16:47:21 UTC
Depth
15.7 km (9.7 mi), shallow
Epicenter
46.996° N, 121.864° 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, 0.5 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
48°
Stations used
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 1.5Washington · 14964 days ago · -1 km deep · 17 km away
  2. 2.07 km WNW of Gorst, Washington · 14957 days ago · 21 km deep · 94 km away
  3. 1.523 km E of Castle Rock, Washington · 14953 days ago · 19 km deep · 96 km away
  4. 2.70 km ENE of Riverbend, Washington · 14952 days ago · 15 km deep · 53 km away
  5. 1.64 km SE of Packwood, Washington · 14950 days ago · 0 km deep · 49 km away
  6. 2.69 km W of Belfair, Washington · 14950 days ago · 15 km deep · 96 km away
  7. 2.138 km S of Morton, Washington · 14949 days ago · -2 km deep · 91 km away
  8. 1.810 km ESE of Ashford, Washington · 14942 days ago · 2 km deep · 31 km away
  9. 1.62 km ENE of Keyport, Washington · 14941 days ago · 16 km deep · 97 km away
  10. 1.84 km WSW of Wilderness Rim, Washington · 14940 days ago · 15 km deep · 49 km away
  11. 1.6Washington · 14937 days ago · 16 km deep · 67 km away
  12. 2.62 km ESE of Silverdale, Washington · 14933 days ago · 20 km deep · 93 km away
  13. 2.013 km NNW of Morton, Washington · 14932 days ago · 17 km deep · 53 km away
  14. 1.58 km NW of Greenwater, Washington · 14931 days ago · -1 km deep · 26 km away
  15. 2.038 km S of Morton, Washington · 14930 days ago · -2 km deep · 90 km away
  16. 2.51 km NNE of Klahanie, Washington · 14930 days ago · 6 km deep · 66 km away
  17. 2.313 km NE of Ashford, Washington · 14929 days ago · 7 km deep · 16 km away
  18. 2.921 km S of Morton, Washington · 14919 days ago · 10 km deep · 76 km away
  19. 2.37 km ESE of Riverbend, Washington · 14909 days ago · 11 km deep · 53 km away

Before

  1. 2.02 km NW of Burien, Washington · 14969 days ago · 22 km deep · 67 km away
  2. 2.43 km NW of Burien, Washington · 14969 days ago · 23 km deep · 67 km away
  3. 1.637 km NNE of Amboy, Washington · 14970 days ago · -1 km deep · 92 km away
  4. 1.82 km WNW of Navy Yard City, Washington · 14971 days ago · 13 km deep · 89 km away
  5. 2.23 km S of Issaquah, Washington · 14972 days ago · 0 km deep · 57 km away
  6. 1.53 km S of Monroe, Washington · 14972 days ago · -1 km deep · 92 km away
  7. 2.63 km NW of Redmond, Washington · 14974 days ago · 8 km deep · 81 km away
  8. 1.92 km NNE of Packwood, Washington · 14976 days ago · 3 km deep · 44 km away
  9. 2.03 km SSE of Issaquah, Washington · 14977 days ago · -1 km deep · 57 km away
  10. 1.85 km E of Hobart, Washington · 14981 days ago · 10 km deep · 48 km away
  11. 1.639 km NNE of Amboy, Washington · 14982 days ago · -2 km deep · 91 km away
  12. 3.04 km WSW of Des Moines, Washington · 14983 days ago · 19 km deep · 59 km away
  13. 1.812 km W of Greenwater, Washington · 14984 days ago · 14 km deep · 19 km away
  14. 2.37 km SSE of Carbonado, Washington · 14986 days ago · 14 km deep · 11 km away
  15. 1.829 km S of Morton, Washington · 14986 days ago · 10 km deep · 83 km away
  16. 1.52 km SW of Des Moines, Washington · 14987 days ago · 15 km deep · 57 km away
  17. 2.52 km SW of Des Moines, Washington · 14987 days ago · 14 km deep · 57 km away
  18. 1.65 km NNW of Maplewood, Washington · 14988 days ago · 17 km deep · 73 km away
  19. 1.822 km E of Skykomish, Washington · 14989 days ago · 0 km deep · 97 km away
  20. 2.5Washington · 14992 days ago · 6 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10196788. Read Tue, Sep 22, 2026, 9:39 AM UTC.