Washington earthquakes

M3.7 earthquake 27 km E of Darrington, Washington

A magnitude 3.7 earthquake struck 27 km E of Darrington, Washington on Tue, Sep 4, 1973, 10:56 AM PDT (17:56 UTC), 4 km (2 mi) below the surface.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.7 (md), minor
Local time
UTC
1973-09-04 17:56:50 UTC
Depth
3.7 km (2.3 mi), shallow
Epicenter
48.233° N, 121.227° 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, 2.3 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
232°, poorly surrounded by stations
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 2.44 km NW of Swede Heaven, Washington · 19374 days ago · -1 km deep · 41 km away
  2. 2.41 km NE of Shoreline, Washington · 19364 days ago · 23 km deep · 97 km away
  3. 2.29 km ENE of Snoqualmie, Washington · 19358 days ago · 81 km deep · 83 km away
  4. 1.64 km WSW of Wilderness Rim, Washington · 19345 days ago · 18 km deep · 99 km away
  5. 1.64 km S of Lake Cavanaugh, Washington · 19336 days ago · 13 km deep · 58 km away
  6. 1.76 km E of Issaquah, Washington · 19325 days ago · 10 km deep · 95 km away
  7. 1.814 km E of Carnation, Washington · 19318 days ago · 8 km deep · 73 km away

Before

  1. 2.311 km SW of Concrete, Washington · 19376 days ago · 0 km deep · 52 km away
  2. 2.012 km SE of Hamilton, Washington · 19378 days ago · -1 km deep · 54 km away
  3. 1.61 km ESE of Clyde Hill, Washington · 19381 days ago · 25 km deep · 99 km away
  4. 1.81 km ENE of Silver Firs, Washington · 19384 days ago · 23 km deep · 79 km away
  5. 1.70 km E of Mill Creek East, Washington · 19386 days ago · 16 km deep · 83 km away
  6. 1.90 km NW of Edmonds, Washington · 19392 days ago · 23 km deep · 98 km away
  7. 2.71 km NNE of Woods Creek, Washington · 19399 days ago · 12 km deep · 62 km away
  8. 1.511 km S of Darrington, Washington · 19404 days ago · 1 km deep · 29 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10856918 (also filed as usp00003az). Read Tue, Sep 22, 2026, 6:34 AM UTC.