Washington earthquakes

M1.6 earthquake 2 km ESE of Okanogan, Washington

A magnitude 1.6 earthquake struck 2 km ESE of Okanogan, Washington on Thu, Nov 28, 2002, 5:17 PM PST (01:17 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.8 28 km W of Curlew, Washington. 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
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2002-11-29 01:17:40 UTC
Depth
-0.9 km (-0.6 mi), shallow
Epicenter
48.355° N, 119.558° 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 0.4 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.02
Depth from
Operator assigned
Station coverage gap
289°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.77 km SW of Chelan Falls, Washington · 8696 days ago · 1 km deep · 76 km away
  2. 1.615 km NNW of Banks Lake South, Washington · 8680 days ago · 0 km deep · 68 km away
  3. 2.828 km W of Curlew, Washington · 8680 days ago · -1 km deep · 70 km away
  4. 1.77 km SSW of Chelan Falls, Washington · 8669 days ago · 2 km deep · 76 km away
  5. 2.610 km WSW of Chelan Falls, Washington · 8662 days ago · 3 km deep · 77 km away
  6. 1.615 km NNW of Banks Lake South, Washington · 8660 days ago · 0 km deep · 68 km away
  7. 2.340 km WSW of Twisp, Washington · 8656 days ago · 5 km deep · 82 km away
  8. 1.613 km ESE of Mansfield, Washington · 8650 days ago · -1 km deep · 67 km away

Before

  1. 2.17 km SW of Chelan Falls, Washington · 8718 days ago · -1 km deep · 77 km away
  2. 1.510 km N of Keller, Washington · 8729 days ago · 7 km deep · 69 km away
  3. 2.210 km WNW of Oliver, Canada · 8732 days ago · 9 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10584578. Read Thu, Oct 1, 2026, 5:11 PM UTC.