Washington earthquakes

M1.5 earthquake 4 km E of Dash Point, Washington

A magnitude 1.5 earthquake struck 4 km E of Dash Point, Washington on Sun, Aug 22, 1999, 11:11 PM PDT (06:11 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M1.7 31 km SSE of Greenwater, Washington. This one was a foreshock.

Dash Point 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
1.5 (md), micro
Local time
UTC
1999-08-23 06:11:23 UTC
Depth
22.5 km (14.0 mi), shallow
Epicenter
47.313° N, 122.371° 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 0.0 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
68°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.731 km SSE of Greenwater, Washington · 9893 days ago · -1 km deep · 81 km away
  2. 1.66 km SW of Lofall, Washington · 9892 days ago · 16 km deep · 58 km away
  3. 2.08 km NNE of Lake Marcel-Stillwater, Washington · 9891 days ago · 7 km deep · 63 km away
  4. 1.69 km NNE of Lake Marcel-Stillwater, Washington · 9889 days ago · 1 km deep · 63 km away
  5. 1.62 km WNW of Mirrormont, Washington · 9889 days ago · 17 km deep · 31 km away
  6. 2.9Olympic Peninsula, Washington · 9883 days ago · -1 km deep · 61 km away
  7. 1.88 km ENE of Duvall, Washington · 9883 days ago · 6 km deep · 63 km away
  8. 1.53 km S of Lake Roesiger, Washington · 9883 days ago · 11 km deep · 79 km away
  9. 1.88 km SSW of Sultan, Washington · 9881 days ago · 7 km deep · 65 km away
  10. 2.85 km SSW of Shelton, Washington · 9880 days ago · 46 km deep · 59 km away
  11. 1.73 km S of Monroe, Washington · 9880 days ago · 2 km deep · 64 km away
  12. 1.628 km ENE of Ashford, Washington · 9879 days ago · -3 km deep · 71 km away
  13. 2.23 km ESE of Indianola, Washington · 9872 days ago · 22 km deep · 48 km away
  14. 1.625 km N of Packwood, Washington · 9869 days ago · -3 km deep · 78 km away
  15. 2.8Washington · 9866 days ago · 16 km deep · 56 km away
  16. 1.79 km NNE of Snoqualmie, Washington · 9866 days ago · 16 km deep · 55 km away
  17. 2.19 km NNE of Snoqualmie, Washington · 9866 days ago · 15 km deep · 56 km away
  18. 2.01 km ENE of Bellevue, Washington · 9860 days ago · 6 km deep · 36 km away
  19. 1.727 km ENE of Ashford, Washington · 9856 days ago · -2 km deep · 72 km away
  20. 1.511 km E of Enumclaw, Washington · 9855 days ago · 2 km deep · 41 km away
  21. 2.512 km WSW of Packwood, Washington · 9853 days ago · 3 km deep · 95 km away
  22. 1.62 km N of Gorst, Washington · 9851 days ago · -1 km deep · 36 km away
  23. 2.120 km ENE of Ashford, Washington · 9845 days ago · -2 km deep · 69 km away
  24. 1.721 km ENE of Ashford, Washington · 9841 days ago · 0 km deep · 69 km away
  25. 1.71 km NNE of Bothell, Washington · 9837 days ago · 27 km deep · 53 km away
  26. 1.63 km NE of Woods Creek, Washington · 9834 days ago · -1 km deep · 75 km away

Before

  1. 2.03 km NNW of Port Townsend, Washington · 9894 days ago · 21 km deep · 98 km away
  2. 3.120 km WSW of Brinnon, Washington · 9898 days ago · 46 km deep · 69 km away
  3. 1.95 km ENE of Bonney Lake, Washington · 9904 days ago · 8 km deep · 23 km away
  4. 1.77 km NNE of Satsop, Washington · 9905 days ago · 40 km deep · 87 km away
  5. 1.516 km SE of Carbonado, Washington · 9912 days ago · 7 km deep · 52 km away
  6. 1.616 km SE of Carbonado, Washington · 9912 days ago · 6 km deep · 52 km away
  7. 2.29 km ENE of Duvall, Washington · 9921 days ago · 4 km deep · 64 km away
  8. 1.99 km ENE of Duvall, Washington · 9921 days ago · 4 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10484493. Read Thu, Sep 24, 2026, 3:51 AM UTC.