Washington earthquakes

M1.7 earthquake 10 km E of Kelso, Washington

A magnitude 1.7 earthquake struck 10 km E of Kelso, Washington on Thu, Apr 3, 2008, 11:23 PM PDT (06:23 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M2.6 18 km ENE of Kalama, Washington. This one was a foreshock.

Kelso 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
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2008-04-04 06:23:20 UTC
Depth
18.5 km (11.5 mi), shallow
Epicenter
46.162° N, 122.780° 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
±0.06
Depth from
From location
Station coverage gap
90°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.511 km E of Kelso, Washington · 6758 days ago · 18 km deep · 1 km away
  2. 1.74 km ESE of Mossyrock, Washington · 6747 days ago · 19 km deep · 48 km away
  3. 1.712 km SSE of Morton, Washington · 6740 days ago · 4 km deep · 54 km away
  4. 1.511 km NNE of Ashford, Washington · 6740 days ago · 6 km deep · 98 km away
  5. 1.70 km E of Salmon Creek, Washington · 6738 days ago · 19 km deep · 51 km away
  6. 2.618 km ENE of Kalama, Washington · 6736 days ago · 17 km deep · 17 km away
  7. 2.29 km E of Ashford, Washington · 6728 days ago · 1 km deep · 94 km away
  8. 1.69 km NE of Kalama, Washington · 6717 days ago · -1 km deep · 10 km away
  9. 1.94 km W of Deer Island, Oregon · 6717 days ago · 26 km deep · 27 km away
  10. 2.021 km NNE of Amboy, Washington · 6716 days ago · 0 km deep · 34 km away
  11. 2.19 km E of Kelso, Washington · 6713 days ago · 19 km deep · 0 km away
  12. 2.111 km NE of Ashford, Washington · 6708 days ago · 7 km deep · 99 km away
  13. 1.611 km NE of Ashford, Washington · 6707 days ago · 8 km deep · 99 km away
  14. 2.013 km WSW of Packwood, Washington · 6705 days ago · 1 km deep · 85 km away
  15. 1.53 km W of West Linn, Oregon · 6704 days ago · 22 km deep · 89 km away
  16. 1.837 km NNE of Amboy, Washington · 6700 days ago · 1 km deep · 45 km away
  17. 2.24 km ESE of Mossyrock, Washington · 6699 days ago · 19 km deep · 48 km away

Before

  1. 1.74 km ESE of Mossyrock, Washington · 6760 days ago · 20 km deep · 48 km away
  2. 2.510 km NE of Ashford, Washington · 6760 days ago · 5 km deep · 99 km away
  3. 1.59 km ESE of Onalaska, Washington · 6772 days ago · 17 km deep · 43 km away
  4. 2.59 km W of Mossyrock, Washington · 6773 days ago · 19 km deep · 43 km away
  5. 1.79 km NE of North Plains, Oregon · 6781 days ago · 18 km deep · 57 km away
  6. 1.75 km ENE of Prescott, Oregon · 6782 days ago · 7 km deep · 11 km away
  7. 1.64 km ESE of Mossyrock, Washington · 6782 days ago · 18 km deep · 47 km away
  8. 1.737 km NNE of Amboy, Washington · 6787 days ago · 1 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10739918. Read Sun, Oct 4, 2026, 11:08 PM UTC.