Washington earthquakes

M1.6 earthquake 1 km SSW of Ames Lake, Washington

A magnitude 1.6 earthquake struck 1 km SSW of Ames Lake, Washington on Sat, Apr 17, 2004, 9:20 PM PDT (04:20 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.5 5 km SW of Sultan, Washington. This one was a foreshock.

Ames Lake 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
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2004-04-18 04:20:06 UTC
Depth
3.8 km (2.4 mi), shallow
Epicenter
47.623° N, 121.970° 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 1.6 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
111°
Stations used
14

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 6 in the 30 days before it.

After

  1. 1.64 km ESE of Elbe, Washington · 8203 days ago · 16 km deep · 98 km away
  2. 1.92 km WNW of Ashford, Washington · 8198 days ago · 14 km deep · 95 km away
  3. 2.55 km SW of Sultan, Washington · 8196 days ago · 17 km deep · 24 km away
  4. 2.32 km SSE of Maple Heights-Lake Desire, Washington · 8192 days ago · 22 km deep · 24 km away
  5. 1.94 km ESE of Lake Marcel-Stillwater, Washington · 8191 days ago · 13 km deep · 10 km away
  6. 1.50 km WNW of Oso, Washington · 8170 days ago · 14 km deep · 72 km away
  7. 1.90 km W of Mountlake Terrace, Washington · 8167 days ago · 28 km deep · 32 km away
  8. 2.019 km ENE of Darrington, Washington · 8163 days ago · 9 km deep · 88 km away
  9. 1.72 km SE of Browns Point, Washington · 8160 days ago · 21 km deep · 50 km away
  10. 1.78 km E of Ashford, Washington · 8159 days ago · 3 km deep · 96 km away
  11. 1.53 km ESE of Oso, Washington · 8157 days ago · 13 km deep · 71 km away
  12. 1.53 km E of Dash Point, Washington · 8153 days ago · 28 km deep · 46 km away
  13. 2.33 km ESE of Dash Point, Washington · 8149 days ago · 25 km deep · 46 km away
  14. 1.53 km W of Gorst, Washington · 8148 days ago · 21 km deep · 60 km away
  15. 1.53 km E of Dash Point, Washington · 8145 days ago · 23 km deep · 46 km away

Before

  1. 1.83 km WSW of Des Moines, Washington · 8206 days ago · 23 km deep · 39 km away
  2. 2.316 km SSE of Carbonado, Washington · 8206 days ago · 11 km deep · 76 km away
  3. 2.15 km SW of Woodway, Washington · 8216 days ago · 26 km deep · 39 km away
  4. 1.63 km SW of Lake Marcel-Stillwater, Washington · 8219 days ago · 2 km deep · 5 km away
  5. 2.25 km SW of Rockport, Washington · 8231 days ago · -1 km deep · 95 km away
  6. 1.917 km SSE of Carbonado, Washington · 8233 days ago · -2 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10610848. Read Sat, Oct 3, 2026, 12:12 PM UTC.