Washington earthquakes

M1.5 earthquake 21 km SSE of Marblemount, Washington

A magnitude 1.5 earthquake struck 21 km SSE of Marblemount, Washington on Tue, Jul 13, 1982, 1:42 AM PDT (08:42 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.0 4 km ENE of Sedro-Woolley, Washington. This one was a foreshock.

Darrington 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
1982-07-13 08:42:45 UTC
Depth
1.0 km (0.6 mi), shallow
Epicenter
48.352° N, 121.332° 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 2.0 km horizontally, 3.0 km in depth
Magnitude uncertainty
±0.05
Depth from
Operator assigned
Station coverage gap
163°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 2.04 km ENE of Sedro-Woolley, Washington · 16131 days ago · 15 km deep · 65 km away
  2. 1.72 km NNE of Rockport, Washington · 16131 days ago · 2 km deep · 26 km away
  3. 1.91 km WNW of Rockport, Washington · 16131 days ago · 0 km deep · 26 km away
  4. 2.41 km NE of Bothell West, Washington · 16128 days ago · 22 km deep · 90 km away
  5. 1.543 km WNW of Granite Falls, Washington · 16124 days ago · -1 km deep · 54 km away
  6. 2.010 km SSW of Chilliwack, Canada · 16121 days ago · 2 km deep · 95 km away
  7. 1.72 km E of Maltby, Washington · 16121 days ago · 22 km deep · 82 km away
  8. 2.86 km NNE of Acme, Washington · 16119 days ago · 13 km deep · 76 km away
  9. 1.513 km S of Chilliwack, Canada · 16112 days ago · 3 km deep · 90 km away
  10. 1.71 km NNE of Esperance, Washington · 16111 days ago · 22 km deep · 97 km away
  11. 1.51 km ESE of Edmonds, Washington · 16110 days ago · 18 km deep · 98 km away
  12. 2.66 km ESE of Lake Marcel-Stillwater, Washington · 16105 days ago · 7 km deep · 84 km away
  13. 2.16 km NE of Fall City, Washington · 16105 days ago · 13 km deep · 91 km away
  14. 1.77 km NE of Concrete, Washington · 16101 days ago · -1 km deep · 37 km away
  15. 1.738 km NNW of Leavenworth, Washington · 16095 days ago · 10 km deep · 60 km away
  16. 2.225 km E of Darrington, Washington · 16094 days ago · 2 km deep · 10 km away
  17. 1.614 km NNE of Snoqualmie Pass, Washington · 16093 days ago · 5 km deep · 94 km away
  18. 1.71 km NE of Shoreline, Washington · 16093 days ago · 24 km deep · 99 km away
  19. 1.74 km E of Granite Falls, Washington · 16092 days ago · -1 km deep · 52 km away
  20. 2.11 km S of Sammamish, Washington · 16085 days ago · 12 km deep · 98 km away
  21. 1.91 km S of Sammamish, Washington · 16085 days ago · 11 km deep · 98 km away
  22. 2.18 km SE of Camano, Washington · 16083 days ago · 26 km deep · 87 km away

Before

  1. 1.82 km WNW of Snoqualmie, Washington · 16143 days ago · -1 km deep · 98 km away
  2. 1.710 km SW of Everson, Washington · 16147 days ago · 2 km deep · 98 km away
  3. 1.93 km SE of Lake Roesiger, Washington · 16148 days ago · 19 km deep · 60 km away
  4. 1.91 km SW of Roosevelt, Washington · 16153 days ago · 23 km deep · 73 km away
  5. 1.62 km SE of Ault Field, Washington · 16154 days ago · 15 km deep · 98 km away
  6. 1.54 km N of Bryant, Washington · 16158 days ago · 13 km deep · 61 km away
  7. 1.95 km NW of Edmonds, Washington · 16160 days ago · -1 km deep · 99 km away
  8. 2.5Puget Sound region, Washington · 16161 days ago · 25 km deep · 92 km away
  9. 1.84 km NW of Edmonds, Washington · 16161 days ago · 13 km deep · 100 km away
  10. 1.68 km WNW of Stanwood, Washington · 16162 days ago · 17 km deep · 85 km away
  11. 1.711 km E of Winthrop, Washington · 16163 days ago · -1 km deep · 97 km away
  12. 1.52 km SSE of Lake Bosworth, Washington · 16164 days ago · -1 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10138633. Read Tue, Sep 22, 2026, 5:16 PM UTC.