Washington earthquakes

M2.5 earthquake 18 km E of Packwood, Washington

A magnitude 2.5 earthquake struck 18 km E of Packwood, Washington on Fri, Dec 21, 1973, 8:11 PM PST (04:11 UTC), 3 km (2 mi) below the surface.

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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
2.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1973-12-22 04:11:46 UTC
Depth
2.9 km (1.8 mi), shallow
Epicenter
46.615° N, 121.427° 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 2.9 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
304°, 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: 5 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.110 km NE of Ashford, Washington · 19267 days ago · 11 km deep · 47 km away
  2. 1.78 km ENE of Tanner, Washington · 19258 days ago · 10 km deep · 100 km away
  3. 1.811 km WNW of Snoqualmie Pass, Washington · 19256 days ago · 0 km deep · 90 km away
  4. 1.91 km W of La Grande, Washington · 19242 days ago · 5 km deep · 74 km away
  5. 2.329 km E of Packwood, Washington · 19228 days ago · 6 km deep · 11 km away

Before

  1. 1.618 km SSW of Nile, Washington · 19286 days ago · 23 km deep · 28 km away
  2. 2.812 km NE of Ashford, Washington · 19288 days ago · 8 km deep · 45 km away
  3. 1.839 km SSE of Morton, Washington · 19289 days ago · 10 km deep · 71 km away
  4. 1.85 km SSE of Mossyrock, Washington · 19293 days ago · 8 km deep · 79 km away
  5. 2.415 km NE of Ashford, Washington · 19294 days ago · 4 km deep · 46 km away
  6. 1.925 km ENE of Packwood, Washington · 19296 days ago · 4 km deep · 8 km away
  7. 1.61 km WNW of Auburn, Washington · 19303 days ago · 3 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10857928. Read Fri, Oct 2, 2026, 6:38 AM UTC.