Washington earthquakes

M1.5 earthquake 1 km W of Monroe, Washington

A magnitude 1.5 earthquake struck 1 km W of Monroe, Washington on Fri, Nov 15, 1974, 1:30 PM PST (21:30 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M1.9 4 km ESE of Cathcart, 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
1.5 (md), micro
Local time
UTC
1974-11-15 21:30:38 UTC
Depth
-0.8 km (-0.5 mi), shallow
Epicenter
47.855° N, 121.990° 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, 0.2 km in depth
Magnitude uncertainty
±0.24
Depth from
Operator assigned
Station coverage gap
155°
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 1.511 km N of Quilcene, Washington · 18939 days ago · 23 km deep · 66 km away
  2. 1.94 km ESE of Cathcart, Washington · 18938 days ago · 16 km deep · 4 km away
  3. 1.89 km ESE of Enumclaw, Washington · 18937 days ago · 8 km deep · 75 km away
  4. 1.80 km W of Fobes Hill, Washington · 18928 days ago · 9 km deep · 15 km away
  5. 1.52 km NNW of Gorst, Washington · 18925 days ago · 17 km deep · 65 km away
  6. 1.63 km NNW of Bryn Mawr-Skyway, Washington · 18924 days ago · 30 km deep · 42 km away
  7. 1.92 km NE of Riverton, Washington · 18924 days ago · 25 km deep · 45 km away
  8. 2.90 km NNE of Seattle, Washington · 18924 days ago · -1 km deep · 37 km away
  9. 1.62 km WNW of Bryn Mawr-Skyway, Washington · 18922 days ago · 27 km deep · 45 km away
  10. 1.84 km E of Big Lake, Washington · 18917 days ago · 19 km deep · 63 km away
  11. 2.83 km SW of Hamilton, Washington · 18909 days ago · 1 km deep · 72 km away
  12. 3.13 km SSW of Lyman, Washington · 18909 days ago · 1 km deep · 72 km away
  13. 2.14 km SW of Hamilton, Washington · 18909 days ago · 0 km deep · 71 km away
  14. 1.51 km NNE of Riverton, Washington · 18896 days ago · 25 km deep · 45 km away
  15. 2.42 km W of Wauna, Washington · 18895 days ago · 33 km deep · 74 km away
  16. 1.93 km WSW of Wilderness Rim, Washington · 18891 days ago · 20 km deep · 48 km away
  17. 1.54 km WSW of Keyport, Washington · 18891 days ago · 17 km deep · 55 km away
  18. 2.52 km SW of Kenmore, Washington · 18888 days ago · 15 km deep · 24 km away
  19. 2.85 km WSW of Mount Vernon, Washington · 18887 days ago · 19 km deep · 69 km away
  20. 2.01 km N of Riverton, Washington · 18886 days ago · 21 km deep · 45 km away

Before

  1. 2.21 km NNW of Hamilton, Washington · 18940 days ago · 2 km deep · 75 km away
  2. 1.82 km ESE of Snoqualmie, Washington · 18940 days ago · 10 km deep · 40 km away
  3. 1.98 km ESE of Lake Roesiger, Washington · 18941 days ago · 8 km deep · 18 km away
  4. 2.03 km W of Belfair, Washington · 18941 days ago · -1 km deep · 80 km away
  5. 2.33 km SSE of Issaquah, Washington · 18943 days ago · 21 km deep · 39 km away
  6. 2.4Washington · 18947 days ago · -1 km deep · 76 km away
  7. 2.31 km W of Hobart, Washington · 18949 days ago · 19 km deep · 48 km away
  8. 1.67 km ESE of Enumclaw, Washington · 18949 days ago · 1 km deep · 75 km away
  9. 1.71 km SSE of Lynnwood, Washington · 18951 days ago · 17 km deep · 24 km away
  10. 2.21 km WNW of Beaux Arts Village, Washington · 18951 days ago · 14 km deep · 34 km away
  11. 1.96 km SSE of Carbonado, Washington · 18954 days ago · -1 km deep · 92 km away
  12. 1.74 km WNW of Lofall, Washington · 18955 days ago · 19 km deep · 55 km away
  13. 2.04 km SSW of Ault Field, Washington · 18957 days ago · 27 km deep · 73 km away
  14. 2.03 km ESE of Lake Roesiger, Washington · 18957 days ago · 18 km deep · 14 km away
  15. 2.0Puget Sound region, Washington · 18961 days ago · 7 km deep · 61 km away
  16. 1.75 km SSW of Seabeck, Washington · 18962 days ago · 20 km deep · 71 km away
  17. 1.83 km NE of North Bend, Washington · 18962 days ago · 19 km deep · 42 km away
  18. 2.08 km ENE of Tanner, Washington · 18963 days ago · -1 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10859868. Read Wed, Sep 23, 2026, 3:20 AM UTC.