Washington earthquakes

M1.6 earthquake 2 km E of Mukilteo, Washington

A magnitude 1.6 earthquake struck 2 km E of Mukilteo, Washington on Fri, Mar 30, 1979, 3:43 PM PST (23:43 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M1.8 2 km NE of Hansville, Washington. This one was a foreshock.

Mukilteo 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
1.6 (md), micro
Local time
UTC
1979-03-30 23:43:55 UTC
Depth
15.1 km (9.4 mi), shallow
Epicenter
47.940° N, 122.268° 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 0.0 km horizontally, 0.0 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
174°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.56 km NW of La Conner, Washington · 17336 days ago · 22 km deep · 59 km away
  2. 1.82 km NE of Hansville, Washington · 17336 days ago · 51 km deep · 19 km away
  3. 1.5Washington · 17334 days ago · 21 km deep · 63 km away
  4. 1.74 km NNE of Snoqualmie, Washington · 17333 days ago · 17 km deep · 55 km away
  5. 1.56 km NE of Fall City, Washington · 17327 days ago · 18 km deep · 51 km away
  6. 1.55 km SW of Coupeville, Washington · 17322 days ago · 16 km deep · 45 km away
  7. 1.94 km SSW of Hansville, Washington · 17322 days ago · 9 km deep · 24 km away
  8. 1.55 km W of Burley, Washington · 17311 days ago · 23 km deep · 66 km away
  9. 1.84 km SSW of Des Moines, Washington · 17309 days ago · 10 km deep · 64 km away

Before

  1. 2.519 km SSE of Oak Bay, Canada · 17350 days ago · 44 km deep · 78 km away
  2. 1.516 km W of Marietta, Washington · 17356 days ago · 12 km deep · 100 km away
  3. 2.52 km W of Boulevard Park, Washington · 17359 days ago · 24 km deep · 51 km away
  4. 3.86 km WSW of Coupeville, Washington · 17361 days ago · 23 km deep · 47 km away
  5. 1.517 km SE of Glacier, Washington · 17362 days ago · -1 km deep · 98 km away
  6. 1.54 km NW of Chico, Washington · 17366 days ago · 23 km deep · 49 km away
  7. 1.63 km SW of Wilderness Rim, Washington · 17369 days ago · 17 km deep · 67 km away
  8. 1.69 km NNE of Snoqualmie, Washington · 17372 days ago · 7 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10849358. Read Tue, Sep 22, 2026, 8:06 AM UTC.