Washington earthquakes

M2.2 earthquake 8 km S of Morton, Washington

A magnitude 2.2 earthquake struck 8 km S of Morton, Washington on Mon, Aug 11, 2003, 10:22 AM PDT (17:22 UTC), 17 km (10 mi) below the surface.

Morton 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
2.2 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2003-08-11 17:22:16 UTC
Depth
16.6 km (10.3 mi), shallow
Epicenter
46.478° N, 122.265° 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 0.5 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
41°
Stations used
40

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 4 in the 30 days before it.

After

  1. 1.823 km ENE of Ashford, Washington · 8449 days ago · -2 km deep · 58 km away
  2. 1.811 km SSE of Mineral, Washington · 8444 days ago · 15 km deep · 19 km away
  3. 1.512 km WSW of Greenwater, Washington · 8439 days ago · 5 km deep · 80 km away
  4. 1.615 km S of Morton, Washington · 8433 days ago · 7 km deep · 6 km away
  5. 1.73 km ESE of Trout Lake, Washington · 8429 days ago · -1 km deep · 81 km away
  6. 1.538 km NNE of Amboy, Washington · 8422 days ago · 0 km deep · 31 km away
  7. 1.54 km SSE of La Center, Washington · 8419 days ago · 9 km deep · 78 km away
  8. 1.5Washington · 8412 days ago · 18 km deep · 30 km away
  9. 2.024 km E of Castle Rock, Washington · 8399 days ago · 18 km deep · 37 km away
  10. 1.61 km NNW of Gig Harbor, Washington · 8398 days ago · 29 km deep · 99 km away
  11. 1.710 km SSE of Mineral, Washington · 8394 days ago · 16 km deep · 20 km away

Before

  1. 1.710 km E of Kalama, Washington · 8458 days ago · 13 km deep · 62 km away
  2. 2.110 km E of Kalama, Washington · 8465 days ago · 19 km deep · 64 km away
  3. 3.04 km NW of North Portland, Oregon · 8469 days ago · 17 km deep · 100 km away · felt by 149
  4. 2.130 km ESE of Packwood, Washington · 8471 days ago · 0 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10590708. Read Thu, Oct 1, 2026, 12:04 PM UTC.