Washington earthquakes

M1.8 earthquake 4 km SSE of Monroe, Washington

A magnitude 1.8 earthquake struck 4 km SSE of Monroe, Washington on Sat, Jul 19, 1975, 9:40 PM PDT (04:40 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M2.0 9 km N of Hamilton, 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.

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1975-07-20 04:40:38 UTC
Depth
12.1 km (7.5 mi), shallow
Epicenter
47.814° N, 121.954° 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 1.0 km horizontally, 2.3 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
92°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 40 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 2.09 km N of Hamilton, Washington · 18691 days ago · 7 km deep · 88 km away
  2. 3.42 km NE of Dash Point, Washington · 18688 days ago · 7 km deep · 63 km away
  3. 1.82 km NNE of Bay View, Washington · 18679 days ago · 24 km deep · 85 km away
  4. 1.82 km ESE of Silverdale, Washington · 18676 days ago · 21 km deep · 57 km away
  5. 1.87 km NE of Brinnon, Washington · 18669 days ago · 14 km deep · 67 km away
  6. 1.93 km E of Keyport, Washington · 18669 days ago · 14 km deep · 48 km away
  7. 1.83 km E of Keyport, Washington · 18668 days ago · 15 km deep · 48 km away
  8. 1.53 km NW of Chico, Washington · 18668 days ago · 8 km deep · 62 km away
  9. 1.74 km NW of Oso, Washington · 18668 days ago · 8 km deep · 53 km away
  10. 1.59 km SSW of Seabeck, Washington · 18665 days ago · 14 km deep · 76 km away
  11. 1.915 km SSW of Blyn, Washington · 18659 days ago · 39 km deep · 88 km away
  12. 2.42 km W of Fall City, Washington · 18659 days ago · 5 km deep · 28 km away
  13. 2.22 km N of Union Hill-Novelty Hill, Washington · 18658 days ago · 18 km deep · 14 km away
  14. 2.04 km WSW of Snoqualmie, Washington · 18656 days ago · 22 km deep · 34 km away
  15. 2.36 km E of Marrowstone, Washington · 18656 days ago · 24 km deep · 55 km away
  16. 2.36 km SSE of Baring, Washington · 18655 days ago · 15 km deep · 39 km away
  17. 2.14 km NE of Carnation, Washington · 18655 days ago · 9 km deep · 17 km away
  18. 2.02 km SW of Snoqualmie, Washington · 18653 days ago · -1 km deep · 35 km away
  19. 1.613 km NNE of Greenwater, Washington · 18652 days ago · 16 km deep · 65 km away
  20. 2.53 km N of Kingston, Washington · 18651 days ago · 23 km deep · 41 km away
  21. 2.24 km SSW of Snoqualmie, Washington · 18648 days ago · 14 km deep · 37 km away
  22. 2.61 km WNW of Crocker, Washington · 18648 days ago · 7 km deep · 82 km away
  23. 2.81 km NNE of Ravensdale, Washington · 18647 days ago · -1 km deep · 50 km away
  24. 2.68 km W of Gorst, Washington · 18644 days ago · 21 km deep · 72 km away
  25. 2.18 km E of Snoqualmie Pass, Washington · 18643 days ago · 0 km deep · 69 km away
  26. 2.61 km WNW of Mirrormont, Washington · 18642 days ago · 11 km deep · 39 km away
  27. 2.02 km SW of Lake Forest Park, Washington · 18641 days ago · 14 km deep · 27 km away
  28. 1.731 km N of Leavenworth, Washington · 18641 days ago · -1 km deep · 98 km away
  29. 1.92 km WNW of Bryn Mawr-Skyway, Washington · 18640 days ago · 24 km deep · 42 km away
  30. 2.00 km NNE of Bellevue, Washington · 18640 days ago · 16 km deep · 29 km away
  31. 2.03 km WSW of Woodway, Washington · 18640 days ago · 11 km deep · 35 km away
  32. 1.83 km SSE of La Conner, Washington · 18637 days ago · -1 km deep · 72 km away
  33. 2.56 km WSW of Lake Cavanaugh, Washington · 18635 days ago · 3 km deep · 55 km away
  34. 1.923 km SE of Greenwater, Washington · 18635 days ago · 2 km deep · 98 km away
  35. 1.98 km W of Snoqualmie Pass, Washington · 18634 days ago · 12 km deep · 57 km away
  36. 1.51 km NNW of Tukwila, Washington · 18634 days ago · 23 km deep · 43 km away
  37. 2.66 km WSW of Lake Cavanaugh, Washington · 18634 days ago · 7 km deep · 55 km away
  38. 2.06 km SW of Lake Cavanaugh, Washington · 18634 days ago · 11 km deep · 54 km away
  39. 1.96 km WSW of Lake Cavanaugh, Washington · 18633 days ago · 9 km deep · 55 km away
  40. 1.74 km NNE of Ravensdale, Washington · 18632 days ago · 7 km deep · 48 km away

Before

  1. 2.22 km S of Startup, Washington · 18692 days ago · -1 km deep · 16 km away
  2. 1.92 km ENE of Dash Point, Washington · 18698 days ago · 8 km deep · 64 km away
  3. 3.42 km E of Dash Point, Washington · 18698 days ago · 7 km deep · 64 km away
  4. 1.56 km NE of Bryant, Washington · 18699 days ago · 11 km deep · 53 km away
  5. 2.07 km SSW of Wilderness Rim, Washington · 18700 days ago · 13 km deep · 50 km away
  6. 2.63 km SE of Southworth, Washington · 18700 days ago · 47 km deep · 52 km away
  7. 2.27 km N of Brinnon, Washington · 18702 days ago · 14 km deep · 72 km away
  8. 2.113 km SE of Verlot, Washington · 18703 days ago · -1 km deep · 32 km away
  9. 2.25 km WSW of North Bend, Washington · 18704 days ago · 8 km deep · 38 km away
  10. 2.62 km E of Dash Point, Washington · 18708 days ago · 16 km deep · 65 km away
  11. 2.12 km NNE of Riverton, Washington · 18709 days ago · 27 km deep · 42 km away
  12. 2.0Puget Sound region, Washington · 18711 days ago · 11 km deep · 65 km away
  13. 1.92 km S of Lake Marcel-Stillwater, Washington · 18711 days ago · 18 km deep · 16 km away
  14. 2.10 km NE of Navy Yard City, Washington · 18711 days ago · 22 km deep · 60 km away
  15. 2.52 km W of North Bend, Washington · 18712 days ago · 16 km deep · 37 km away
  16. 2.02 km ESE of Duvall, Washington · 18712 days ago · 16 km deep · 9 km away
  17. 2.3Puget Sound region, Washington · 18712 days ago · 18 km deep · 51 km away
  18. 1.90 km E of Gorst, Washington · 18712 days ago · 18 km deep · 64 km away
  19. 1.94 km ENE of Hobart, Washington · 18716 days ago · 15 km deep · 42 km away
  20. 1.92 km NW of Carlsborg, Washington · 18719 days ago · 45 km deep · 98 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10861338. Read Tue, Sep 22, 2026, 9:09 AM UTC.