Washington earthquakes

M1.8 earthquake 15 km ENE of Kalama, Washington

A magnitude 1.8 earthquake struck 15 km ENE of Kalama, Washington on Tue, Jan 20, 2004, 9:42 AM PST (17:42 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.0 5 km NW of North Portland, Oregon. This one was a foreshock.

Kalama forecastMore in Washington

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2004-01-20 17:42:12 UTC
Depth
8.0 km (5.0 mi), shallow
Epicenter
46.047° N, 122.659° 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, 0.0 km in depth
Magnitude uncertainty
±0.03
Depth from
Operator assigned
Station coverage gap
153°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.52 km SE of Portland, Oregon · 8271 days ago · 18 km deep · 60 km away
  2. 2.44 km ENE of Molalla, Oregon · 8267 days ago · 21 km deep · 98 km away
  3. 1.75 km ENE of Molalla, Oregon · 8267 days ago · 20 km deep · 98 km away
  4. 3.05 km NW of North Portland, Oregon · 8254 days ago · 19 km deep · 45 km away · felt by 51
  5. 2.06 km NW of North Portland, Oregon · 8253 days ago · 19 km deep · 45 km away
  6. 1.513 km ESE of Pe Ell, Washington · 8243 days ago · 51 km deep · 64 km away
  7. 1.720 km S of Morton, Washington · 8236 days ago · 10 km deep · 47 km away

Before

  1. 2.15 km WNW of North Portland, Oregon · 8301 days ago · 17 km deep · 47 km away
  2. 2.337 km NNE of Amboy, Washington · 8312 days ago · 0 km deep · 40 km away
  3. 1.822 km S of Morton, Washington · 8316 days ago · 6 km deep · 48 km away
  4. 1.838 km NNE of Amboy, Washington · 8318 days ago · 0 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10601908. Read Thu, Oct 1, 2026, 6:50 PM UTC.