Washington earthquakes

M2.4 earthquake 3 km N of Hamilton, Washington

A magnitude 2.4 earthquake struck 3 km N of Hamilton, Washington on Fri, Sep 26, 1986, 4:34 PM PDT (23:34 UTC), -1 km (0 mi) below the surface.

Concrete 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
1986-09-26 23:34:54 UTC
Depth
-0.6 km (-0.4 mi), shallow
Epicenter
48.553° N, 121.989° 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, 0.1 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
93°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.23 km N of Hamilton, Washington · 14603 days ago · -1 km deep · 0 km away
  2. 1.72 km E of Kirkland, Washington · 14601 days ago · 14 km deep · 98 km away
  3. 2.215 km ESE of Acme, Washington · 14599 days ago · -1 km deep · 15 km away
  4. 2.320 km SSE of Marblemount, Washington · 14593 days ago · 9 km deep · 52 km away
  5. 1.53 km NNW of Custer, Washington · 14579 days ago · 6 km deep · 66 km away
  6. 1.617 km ESE of Verlot, Washington · 14574 days ago · 7 km deep · 64 km away

Before

  1. 2.417 km ESE of Verlot, Washington · 14615 days ago · 7 km deep · 64 km away
  2. 2.820 km E of Verlot, Washington · 14615 days ago · 5 km deep · 65 km away
  3. 1.64 km SW of Darrington, Washington · 14615 days ago · 1 km deep · 45 km away
  4. 2.3Puget Sound region, Washington · 14625 days ago · 13 km deep · 93 km away
  5. 2.4Washington-British Columbia border region · 14626 days ago · 48 km deep · 96 km away
  6. 1.60 km S of Oak Harbor, Washington · 14628 days ago · 19 km deep · 57 km away
  7. 2.317 km E of Verlot, Washington · 14630 days ago · 6 km deep · 64 km away
  8. 1.514 km ESE of Verlot, Washington · 14630 days ago · 9 km deep · 62 km away
  9. 1.8Washington · 14631 days ago · -1 km deep · 66 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10213068. Read Tue, Sep 22, 2026, 10:41 AM UTC.