Washington earthquakes

M2.3 earthquake 1 km WNW of Deming, Washington

A magnitude 2.3 earthquake struck 1 km WNW of Deming, Washington on Thu, Aug 21, 2003, 2:12 PM PDT (21:12 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.5 8 km ESE of Oak Bay, Canada. 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
2.3 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2003-08-21 21:12:51 UTC
Depth
0.5 km (0.3 mi), shallow
Epicenter
48.832° N, 122.240° 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 3.1 km horizontally, 58.2 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
120°
Stations used
14

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 13 in the 30 days before it.

After

  1. 1.519 km NNE of Jamestown, Washington · 8440 days ago · 48 km deep · 83 km away
  2. 1.818 km ESE of Darrington, Washington · 8417 days ago · 9 km deep · 96 km away
  3. 1.618 km ESE of Darrington, Washington · 8416 days ago · 7 km deep · 96 km away
  4. 1.55 km NE of Anacortes, Washington · 8415 days ago · 12 km deep · 39 km away
  5. 1.813 km W of Hope, Canada · 8414 days ago · 0 km deep · 78 km away
  6. 2.214 km NE of Jamestown, Washington · 8411 days ago · 24 km deep · 85 km away
  7. 1.55 km SSE of Lynden, Washington · 8410 days ago · 16 km deep · 15 km away
  8. 2.13 km NE of Anacortes, Washington · 8405 days ago · 16 km deep · 41 km away
  9. 2.010 km NNW of Marblemount, Washington · 8404 days ago · 0 km deep · 58 km away
  10. 1.68 km NNW of Freeland, Washington · 8399 days ago · 57 km deep · 87 km away
  11. 2.58 km ESE of Oak Bay, Canada · 8391 days ago · 44 km deep · 84 km away

Before

  1. 1.64 km WNW of Deming, Washington · 8443 days ago · 13 km deep · 2 km away
  2. 1.911 km SSW of Darrington, Washington · 8443 days ago · 10 km deep · 87 km away
  3. 1.53 km WNW of Deming, Washington · 8444 days ago · 13 km deep · 2 km away
  4. 1.93 km NW of Deming, Washington · 8444 days ago · 16 km deep · 2 km away
  5. 1.6Washington · 8445 days ago · 7 km deep · 47 km away
  6. 1.66 km WNW of Tsawwassen, Canada · 8448 days ago · 25 km deep · 71 km away
  7. 1.95 km WSW of Swede Heaven, Washington · 8450 days ago · 3 km deep · 70 km away
  8. 1.91 km SSE of Port Hadlock-Irondale, Washington · 8452 days ago · 16 km deep · 99 km away
  9. 1.51 km SSW of Oso, Washington · 8456 days ago · 11 km deep · 67 km away
  10. 1.63 km NNW of Big Lake, Washington · 8460 days ago · 7 km deep · 45 km away
  11. 2.443 km NNE of Anmore, Canada · 8460 days ago · 6 km deep · 93 km away
  12. 2.1Washington · 8461 days ago · 26 km deep · 64 km away
  13. 2.54 km SW of Clear Lake, Washington · 8462 days ago · 8 km deep · 44 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10592603. Read Fri, Oct 2, 2026, 2:22 AM UTC.