Washington earthquakes

M1.5 earthquake 38 km NNE of Amboy, Washington

A magnitude 1.5 earthquake struck 38 km NNE of Amboy, Washington on Tue, Sep 9, 2003, 11:56 PM PDT (06:56 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.0 24 km E of Castle Rock, Washington. This one was a foreshock.

Amboy 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
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2003-09-10 06:56:59 UTC
Depth
0.4 km (0.3 mi), shallow
Epicenter
46.202° N, 122.187° 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 0.3 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
59°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.54 km SSE of La Center, Washington · 8419 days ago · 9 km deep · 55 km away
  2. 1.5Washington · 8412 days ago · 18 km deep · 61 km away
  3. 1.94 km WNW of North Portland, Oregon · 8408 days ago · 16 km deep · 77 km away
  4. 1.66 km NNE of North Plains, Oregon · 8403 days ago · 6 km deep · 86 km away
  5. 2.024 km E of Castle Rock, Washington · 8399 days ago · 18 km deep · 32 km away
  6. 1.727 km SW of White Swan, Washington · 8398 days ago · -1 km deep · 92 km away
  7. 1.710 km SSE of Mineral, Washington · 8395 days ago · 16 km deep · 48 km away
  8. 1.729 km NNW of Goldendale, Washington · 8392 days ago · 5 km deep · 99 km away
  9. 1.830 km NNW of Goldendale, Washington · 8392 days ago · 4 km deep · 99 km away
  10. 1.65 km WSW of Deer Island, Oregon · 8388 days ago · 22 km deep · 64 km away
  11. 1.543 km WNW of Trout Lake, Washington · 8382 days ago · 7 km deep · 13 km away
  12. 1.715 km SSW of Morton, Washington · 8380 days ago · 18 km deep · 28 km away

Before

  1. 1.72 km NW of North Portland, Oregon · 8426 days ago · 16 km deep · 77 km away
  2. 2.43 km NW of North Portland, Oregon · 8426 days ago · 17 km deep · 76 km away
  3. 1.73 km ESE of Trout Lake, Washington · 8429 days ago · -1 km deep · 59 km away
  4. 1.615 km S of Morton, Washington · 8433 days ago · 7 km deep · 25 km away
  5. 1.811 km SSE of Mineral, Washington · 8444 days ago · 15 km deep · 47 km away
  6. 1.823 km ENE of Ashford, Washington · 8449 days ago · -2 km deep · 81 km away
  7. 2.28 km S of Morton, Washington · 8452 days ago · 17 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10594548. Read Thu, Oct 1, 2026, 1:48 PM UTC.