Washington earthquakes

M1.5 earthquake 4 km NNE of Cathan, Washington

A magnitude 1.5 earthquake struck 4 km NNE of Cathan, Washington on Sat, Sep 18, 1982, 4:46 AM PDT (11:46 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M1.9 0 km N of Lakeland South, Washington. This one was a foreshock.

Cathan 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
1982-09-18 11:46:15 UTC
Depth
17.6 km (11.0 mi), shallow
Epicenter
48.153° N, 122.261° 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 2.3 km horizontally, 3.0 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
224°, poorly surrounded by stations
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: 29 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 1.90 km N of Lakeland South, Washington · 16072 days ago · 7 km deep · 97 km away
  2. 1.74 km NNE of Brinnon, Washington · 16070 days ago · 48 km deep · 67 km away
  3. 1.87 km NW of Kingston, Washington · 16068 days ago · 19 km deep · 40 km away
  4. 2.18 km SSE of Victoria, Canada · 16063 days ago · -1 km deep · 81 km away
  5. 2.05 km WNW of Gorst, Washington · 16060 days ago · 18 km deep · 78 km away
  6. 1.71 km S of Erlands Point-Kitsap Lake, Washington · 16060 days ago · 19 km deep · 72 km away
  7. 3.02 km W of Manchester, Washington · 16048 days ago · 27 km deep · 70 km away
  8. 1.65 km ENE of Fall City, Washington · 16048 days ago · 15 km deep · 72 km away
  9. 2.63 km SW of Darrington, Washington · 16047 days ago · 1 km deep · 47 km away
  10. 1.76 km SSW of Wilderness Rim, Washington · 16045 days ago · 19 km deep · 91 km away
  11. 2.04 km N of Woods Creek, Washington · 16044 days ago · 15 km deep · 37 km away
  12. 2.01 km ENE of Keyport, Washington · 16043 days ago · 21 km deep · 56 km away
  13. 2.014 km N of May Creek, Washington · 16040 days ago · -1 km deep · 50 km away
  14. 2.14 km ESE of Lake Roesiger, Washington · 16039 days ago · 17 km deep · 36 km away
  15. 1.69 km SW of Everson, Washington · 16039 days ago · 10 km deep · 79 km away
  16. 1.98 km ENE of Manchester, Washington · 16036 days ago · 18 km deep · 66 km away
  17. 1.84 km SE of Port Ludlow, Washington · 16035 days ago · 18 km deep · 39 km away
  18. 1.50 km SSW of Fall City, Washington · 16033 days ago · 6 km deep · 72 km away
  19. 1.74 km ENE of Southworth, Washington · 16032 days ago · 17 km deep · 72 km away
  20. 1.75 km ESE of Carnation, Washington · 16027 days ago · -1 km deep · 66 km away
  21. 1.97 km SE of Wilderness Rim, Washington · 16026 days ago · -1 km deep · 94 km away
  22. 1.72 km NE of Keyport, Washington · 16025 days ago · 19 km deep · 55 km away
  23. 1.97 km NE of North Bend, Washington · 16022 days ago · -1 km deep · 78 km away
  24. 2.84 km NNE of Tracyton, Washington · 16020 days ago · 24 km deep · 63 km away
  25. 1.84 km ESE of Lake Roesiger, Washington · 16019 days ago · 17 km deep · 36 km away
  26. 2.38 km SE of Wilderness Rim, Washington · 16019 days ago · -1 km deep · 95 km away
  27. 1.61 km NNW of Port Orchard, Washington · 16018 days ago · 23 km deep · 73 km away
  28. 2.23 km ESE of Lake Marcel-Stillwater, Washington · 16017 days ago · 9 km deep · 60 km away
  29. 1.6Washington · 16016 days ago · 25 km deep · 40 km away

Before

  1. 2.92 km NE of Union Hill-Novelty Hill, Washington · 16078 days ago · 5 km deep · 55 km away
  2. 2.03 km WSW of Mercer Island, Washington · 16081 days ago · 21 km deep · 65 km away
  3. 2.18 km SE of Camano, Washington · 16082 days ago · 26 km deep · 15 km away
  4. 1.91 km S of Sammamish, Washington · 16085 days ago · 11 km deep · 60 km away
  5. 1.79 km ESE of Orcas, Washington · 16085 days ago · 54 km deep · 62 km away
  6. 2.11 km S of Sammamish, Washington · 16085 days ago · 12 km deep · 60 km away
  7. 1.74 km E of Granite Falls, Washington · 16092 days ago · -1 km deep · 27 km away
  8. 1.71 km NE of Shoreline, Washington · 16093 days ago · 24 km deep · 44 km away
  9. 2.05 km N of Friday Harbor, Washington · 16093 days ago · 6 km deep · 73 km away
  10. 1.91 km WNW of Orcas, Washington · 16093 days ago · 12 km deep · 72 km away
  11. 2.225 km E of Darrington, Washington · 16094 days ago · 2 km deep · 75 km away
  12. 1.61 km ENE of Bangor Trident Base, Washington · 16100 days ago · 13 km deep · 57 km away
  13. 1.77 km NE of Concrete, Washington · 16101 days ago · -1 km deep · 65 km away
  14. 2.13 km SSW of Shoreline, Washington · 16102 days ago · 23 km deep · 48 km away
  15. 2.33 km NW of Bainbridge Island, Washington · 16102 days ago · 18 km deep · 60 km away
  16. 2.02 km WSW of Belfair, Washington · 16103 days ago · 3 km deep · 91 km away
  17. 2.21 km SSE of Newport, Washington · 16104 days ago · 0 km deep · 66 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10145063. Read Tue, Sep 22, 2026, 2:33 PM UTC.