Washington earthquakes

M2.4 earthquake 4 km SW of Anacortes, Washington

A magnitude 2.4 earthquake struck 4 km SW of Anacortes, Washington on Tue, Apr 21, 1992, 5:59 AM PDT (12:59 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M2.5 8 km SSW of Sultan, 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
2.4 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1992-04-21 12:59:39 UTC
Depth
23.7 km (14.7 mi), shallow
Epicenter
48.490° N, 122.660° 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, 2.5 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
90°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.94 km S of Marietta, Washington · 12574 days ago · 13 km deep · 29 km away
  2. 2.58 km SSW of Sultan, Washington · 12569 days ago · 17 km deep · 99 km away
  3. 1.511 km W of Ault Field, Washington · 12560 days ago · 16 km deep · 21 km away
  4. 1.95 km S of Lake Roesiger, Washington · 12557 days ago · 14 km deep · 82 km away
  5. 2.44 km SW of Darrington, Washington · 12543 days ago · 1 km deep · 80 km away
  6. 2.32 km W of Bainbridge Island, Washington · 12532 days ago · 19 km deep · 97 km away
  7. 2.114 km SW of Marietta, Washington · 12530 days ago · 18 km deep · 22 km away
  8. 1.75 km E of Granite Falls, Washington · 12530 days ago · -1 km deep · 72 km away
  9. 1.98 km W of Coupeville, Washington · 12527 days ago · 15 km deep · 32 km away
  10. 1.611 km W of Ault Field, Washington · 12524 days ago · 15 km deep · 20 km away

Before

  1. 1.9Puget Sound region, Washington · 12583 days ago · 20 km deep · 71 km away
  2. 2.76 km ENE of Deming, Washington · 12585 days ago · 1 km deep · 56 km away
  3. 1.60 km WSW of Brier, Washington · 12591 days ago · 24 km deep · 84 km away
  4. 1.94 km SW of Darrington, Washington · 12597 days ago · 3 km deep · 80 km away
  5. 1.62 km NW of Rockport, Washington · 12599 days ago · -1 km deep · 76 km away
  6. 1.54 km NE of Conway, Washington · 12602 days ago · 16 km deep · 30 km away
  7. 1.64 km SW of Anacortes, Washington · 12605 days ago · 25 km deep · 0 km away
  8. 2.0Washington · 12606 days ago · 8 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10289478. Read Fri, Oct 2, 2026, 12:47 PM UTC.