Washington earthquakes

M1.7 earthquake 3 km S of Monroe, Washington

A magnitude 1.7 earthquake struck 3 km S of Monroe, Washington on Sun, Sep 5, 1999, 6:17 PM PDT (01:17 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.8 Washington. This one was a foreshock.

Monroe 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
1999-09-06 01:17:46 UTC
Depth
1.8 km (1.1 mi), shallow
Epicenter
47.824° N, 121.967° 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 0.1 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.05
Depth from
Operator assigned
Station coverage gap
93°
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: 14 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 2.23 km ESE of Indianola, Washington · 9874 days ago · 22 km deep · 40 km away
  2. 2.8Washington · 9868 days ago · 16 km deep · 29 km away
  3. 1.79 km NNE of Snoqualmie, Washington · 9868 days ago · 16 km deep · 28 km away
  4. 2.19 km NNE of Snoqualmie, Washington · 9868 days ago · 15 km deep · 29 km away
  5. 2.01 km ENE of Bellevue, Washington · 9862 days ago · 6 km deep · 28 km away
  6. 1.511 km E of Enumclaw, Washington · 9857 days ago · 2 km deep · 68 km away
  7. 1.62 km N of Gorst, Washington · 9854 days ago · -1 km deep · 64 km away
  8. 1.71 km NNE of Bothell, Washington · 9839 days ago · 27 km deep · 18 km away
  9. 1.60 km NNE of Lyman, Washington · 9838 days ago · -1 km deep · 79 km away
  10. 1.63 km NE of Woods Creek, Washington · 9836 days ago · -1 km deep · 11 km away
  11. 1.64 km NE of North Bend, Washington · 9834 days ago · 16 km deep · 37 km away
  12. 1.610 km NE of Snoqualmie, Washington · 9834 days ago · 14 km deep · 29 km away
  13. 1.51 km WNW of Lea Hill, Washington · 9834 days ago · 63 km deep · 58 km away
  14. 1.50 km W of Lyman, Washington · 9827 days ago · 1 km deep · 78 km away

Before

  1. 1.88 km SSW of Sultan, Washington · 9883 days ago · 7 km deep · 8 km away
  2. 1.53 km S of Lake Roesiger, Washington · 9885 days ago · 11 km deep · 15 km away
  3. 1.88 km ENE of Duvall, Washington · 9885 days ago · 6 km deep · 9 km away
  4. 2.9Olympic Peninsula, Washington · 9885 days ago · -1 km deep · 94 km away
  5. 1.62 km WNW of Mirrormont, Washington · 9891 days ago · 17 km deep · 40 km away
  6. 1.69 km NNE of Lake Marcel-Stillwater, Washington · 9892 days ago · 1 km deep · 11 km away
  7. 2.08 km NNE of Lake Marcel-Stillwater, Washington · 9894 days ago · 7 km deep · 11 km away
  8. 1.66 km SW of Lofall, Washington · 9894 days ago · 16 km deep · 57 km away
  9. 1.54 km E of Dash Point, Washington · 9896 days ago · 22 km deep · 64 km away
  10. 2.03 km NNW of Port Townsend, Washington · 9897 days ago · 21 km deep · 70 km away
  11. 3.120 km WSW of Brinnon, Washington · 9900 days ago · 46 km deep · 92 km away
  12. 1.95 km ENE of Bonney Lake, Washington · 9906 days ago · 8 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10477313. Read Sat, Sep 26, 2026, 9:06 AM UTC.