Washington earthquakes

M2.4 earthquake 4 km S of Mount Vernon, Washington

A magnitude 2.4 earthquake struck 4 km S of Mount Vernon, Washington on Thu, Apr 8, 1982, 10:09 PM PST (06:09 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M2.6 2 km SSE of Mount Vernon, Washington. This one was a foreshock.

Mount Vernon 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
2.4 (md), micro
Local time
UTC
1982-04-09 06:09:44 UTC
Depth
15.2 km (9.5 mi), shallow
Epicenter
48.381° N, 122.333° 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, 2.0 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
140°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.62 km SSE of Mount Vernon, Washington · 16237 days ago · 19 km deep · 2 km away
  2. 3.40 km NNE of Bainbridge Island, Washington · 16232 days ago · 27 km deep · 84 km away
  3. 1.90 km N of Bainbridge Island, Washington · 16232 days ago · 27 km deep · 84 km away
  4. 2.11 km NNE of Bainbridge Island, Washington · 16232 days ago · 27 km deep · 84 km away
  5. 2.40 km ESE of Bainbridge Island, Washington · 16230 days ago · 22 km deep · 85 km away
  6. 2.010 km N of Quilcene, Washington · 16226 days ago · 18 km deep · 66 km away
  7. 1.518 km S of Point Roberts, Washington · 16214 days ago · 74 km deep · 74 km away
  8. 1.84 km SSW of Clinton, Washington · 16211 days ago · 28 km deep · 49 km away
  9. 2.010 km SSE of Victoria, Canada · 16208 days ago · 39 km deep · 70 km away
  10. 1.65 km N of White Center, Washington · 16191 days ago · 16 km deep · 91 km away
  11. 1.61 km SSE of Inglewood-Finn Hill, Washington · 16188 days ago · 22 km deep · 75 km away
  12. 1.81 km ENE of Mercer Island, Washington · 16187 days ago · 20 km deep · 90 km away
  13. 1.55 km NNW of Friday Harbor, Washington · 16183 days ago · 52 km deep · 57 km away
  14. 2.84 km S of Cottage Lake, Washington · 16181 days ago · 1 km deep · 77 km away
  15. 3.03 km S of Cottage Lake, Washington · 16181 days ago · 6 km deep · 77 km away
  16. 1.82 km WSW of Cottage Lake, Washington · 16181 days ago · 16 km deep · 74 km away
  17. 2.73 km S of Cottage Lake, Washington · 16180 days ago · 7 km deep · 77 km away
  18. 1.92 km W of Manchester, Washington · 16179 days ago · 23 km deep · 94 km away

Before

  1. 1.73 km S of Lake Cavanaugh, Washington · 16238 days ago · 10 km deep · 25 km away
  2. 1.52 km WSW of Monroe, Washington · 16239 days ago · 22 km deep · 64 km away
  3. 1.51 km SSE of Parkwood, Washington · 16247 days ago · 22 km deep · 98 km away
  4. 2.04 km S of Shoreline, Washington · 16251 days ago · 21 km deep · 74 km away
  5. 1.93 km ESE of Indianola, Washington · 16252 days ago · 20 km deep · 73 km away
  6. 1.95 km SSE of Concrete, Washington · 16255 days ago · -1 km deep · 48 km away
  7. 1.82 km S of Issaquah, Washington · 16257 days ago · -1 km deep · 100 km away
  8. 2.16 km WNW of Chilliwack, Canada · 16263 days ago · -1 km deep · 93 km away
  9. 2.10 km ENE of Lake Marcel-Stillwater, Washington · 16264 days ago · 6 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10127543. Read Tue, Sep 22, 2026, 11:35 AM UTC.