Washington earthquakes

M1.7 earthquake 1 km W of Mount Vernon, Washington

A magnitude 1.7 earthquake struck 1 km W of Mount Vernon, Washington on Sun, Dec 16, 1990, 6:34 AM PST (14:34 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.8 5 km ENE of Deming, Washington. This one was a foreshock.

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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
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-12-16 14:34:10 UTC
Depth
7.2 km (4.5 mi), shallow
Epicenter
48.420° N, 122.360° 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
±0.05
Depth from
Operator assigned
Station coverage gap
90°
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: 13 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.76 km NNE of Port Townsend, Washington · 13068 days ago · 53 km deep · 39 km away
  2. 2.66 km SW of Deming, Washington · 13063 days ago · -1 km deep · 41 km away
  3. 1.61 km NNW of Brier, Washington · 13062 days ago · 20 km deep · 70 km away
  4. 2.32 km W of Chilliwack, Canada · 13054 days ago · 3 km deep · 87 km away
  5. 2.44 km NE of Blyn, Washington · 13050 days ago · 13 km deep · 60 km away
  6. 1.64 km WNW of Chico, Washington · 13049 days ago · 21 km deep · 93 km away
  7. 2.34 km SW of Anacortes, Washington · 13044 days ago · 23 km deep · 23 km away
  8. 1.54 km NW of Bryant, Washington · 13044 days ago · 9 km deep · 20 km away
  9. 1.92 km NE of Keyport, Washington · 13041 days ago · 14 km deep · 80 km away
  10. 2.33 km ENE of Bainbridge Island, Washington · 13034 days ago · 18 km deep · 88 km away
  11. 2.85 km ENE of Deming, Washington · 13034 days ago · 1 km deep · 49 km away
  12. 1.90 km NNE of Clyde Hill, Washington · 13026 days ago · 24 km deep · 88 km away
  13. 2.01 km S of Anacortes, Washington · 13022 days ago · 10 km deep · 20 km away

Before

  1. 1.813 km ENE of North Saanich, Canada · 13079 days ago · 22 km deep · 73 km away
  2. 2.51 km NW of Brier, Washington · 13079 days ago · 18 km deep · 70 km away
  3. 2.01 km SW of Meadowdale, Washington · 13090 days ago · 24 km deep · 64 km away
  4. 1.64 km SE of Freeland, Washington · 13095 days ago · 23 km deep · 49 km away
  5. 2.618 km NNE of Hamilton, Washington · 13098 days ago · -1 km deep · 44 km away
  6. 2.65 km S of Port Hadlock-Irondale, Washington · 13099 days ago · 16 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10269588. Read Fri, Oct 2, 2026, 9:54 AM UTC.