Washington earthquakes

M1.6 earthquake 4 km SW of Anacortes, Washington

A magnitude 1.6 earthquake struck 4 km SW of Anacortes, Washington on Sun, Mar 29, 1992, 12:02 PM PST (20:02 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M2.7 6 km ENE of Deming, Washington. This one was a foreshock.

Anacortes 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1992-03-29 20:02:35 UTC
Depth
25.2 km (15.7 mi), shallow
Epicenter
48.489° N, 122.659° 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 0.6 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
33°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.54 km NE of Conway, Washington · 12602 days ago · 16 km deep · 30 km away
  2. 1.62 km NW of Rockport, Washington · 12599 days ago · -1 km deep · 76 km away
  3. 1.94 km SW of Darrington, Washington · 12597 days ago · 3 km deep · 80 km away
  4. 1.60 km WSW of Brier, Washington · 12591 days ago · 24 km deep · 83 km away
  5. 2.76 km ENE of Deming, Washington · 12585 days ago · 1 km deep · 56 km away
  6. 1.9Puget Sound region, Washington · 12583 days ago · 20 km deep · 71 km away
  7. 2.44 km SW of Anacortes, Washington · 12582 days ago · 24 km deep · 0 km away
  8. 1.94 km S of Marietta, Washington · 12574 days ago · 13 km deep · 29 km away
  9. 2.58 km SSW of Sultan, Washington · 12569 days ago · 17 km deep · 99 km away
  10. 1.511 km W of Ault Field, Washington · 12560 days ago · 16 km deep · 21 km away
  11. 1.95 km S of Lake Roesiger, Washington · 12557 days ago · 14 km deep · 82 km away

Before

  1. 2.0Washington · 12606 days ago · 8 km deep · 54 km away
  2. 2.115 km NNE of May Creek, Washington · 12613 days ago · 8 km deep · 98 km away
  3. 1.511 km W of Ault Field, Washington · 12614 days ago · 17 km deep · 20 km away
  4. 2.018 km W of Brinnon, Washington · 12616 days ago · 12 km deep · 100 km away
  5. 3.510 km W of Ault Field, Washington · 12622 days ago · 18 km deep · 20 km away
  6. 2.47 km NW of Lofall, Washington · 12623 days ago · 54 km deep · 70 km away
  7. 2.38 km SSW of Camano, Washington · 12625 days ago · 13 km deep · 44 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10290848. Read Fri, Oct 2, 2026, 4:05 PM UTC.