Washington earthquakes

M1.6 earthquake 8 km NNW of Chelan, Washington

A magnitude 1.6 earthquake struck 8 km NNW of Chelan, Washington on Thu, Nov 24, 1988, 12:29 PM PST (20:29 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.9 13 km WSW of Conconully, Washington. This one was a foreshock.

Chelan 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
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1988-11-24 20:29:10 UTC
Depth
-1.0 km (-0.6 mi), shallow
Epicenter
47.916° N, 120.041° 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 0.0 km horizontally, 0.0 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
129°
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: 13 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.58 km NNW of Chelan, Washington · 13826 days ago · -1 km deep · 0 km away
  2. 1.911 km ESE of Okanogan, Washington · 13820 days ago · -1 km deep · 63 km away
  3. 1.67 km ESE of Omak, Washington · 13815 days ago · -1 km deep · 68 km away
  4. 1.711 km ESE of Okanogan, Washington · 13811 days ago · -1 km deep · 62 km away
  5. 1.58 km SSE of Leavenworth, Washington · 13809 days ago · 0 km deep · 61 km away
  6. 1.67 km SSE of Leavenworth, Washington · 13808 days ago · 0 km deep · 62 km away
  7. 1.66 km W of Entiat, Washington · 13802 days ago · 6 km deep · 32 km away
  8. 1.711 km ESE of Okanogan, Washington · 13801 days ago · -1 km deep · 63 km away
  9. 2.011 km ESE of Okanogan, Washington · 13789 days ago · -1 km deep · 63 km away
  10. 2.913 km WSW of Conconully, Washington · 13778 days ago · -1 km deep · 67 km away
  11. 2.212 km ESE of Okanogan, Washington · 13772 days ago · -1 km deep · 62 km away
  12. 2.313 km W of Wilson Creek, Washington · 13769 days ago · 11 km deep · 77 km away
  13. 1.522 km WNW of Entiat, Washington · 13769 days ago · 11 km deep · 36 km away

Before

  1. 1.78 km NNW of Chelan, Washington · 13831 days ago · 0 km deep · 1 km away
  2. 2.88 km NNW of Chelan, Washington · 13831 days ago · 0 km deep · 0 km away
  3. 1.714 km NE of Winthrop, Washington · 13832 days ago · -1 km deep · 73 km away
  4. 1.65 km NW of Okanogan, Washington · 13837 days ago · 6 km deep · 60 km away
  5. 1.543 km WNW of Granite Falls, Washington · 13840 days ago · 0 km deep · 55 km away
  6. 1.611 km ESE of Okanogan, Washington · 13846 days ago · 0 km deep · 61 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10237573. Read Fri, Oct 2, 2026, 10:55 PM UTC.