Washington earthquakes

M1.5 earthquake 13 km WSW of Alder, Washington

A magnitude 1.5 earthquake struck 13 km WSW of Alder, Washington on Thu, Nov 18, 1976, 4:20 PM PST (00:20 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.7 23 km N of Amboy, 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
1.5 (md), micro
Local time
UTC
1976-11-19 00:20:57 UTC
Depth
-1.1 km (-0.7 mi), shallow
Epicenter
46.733° N, 122.444° 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, 0.2 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
135°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.723 km N of Amboy, Washington · 18198 days ago · 4 km deep · 68 km away
  2. 1.69 km WSW of Mineral, Washington · 18184 days ago · 17 km deep · 11 km away
  3. 1.84 km NNW of Dash Point, Washington · 18182 days ago · 6 km deep · 69 km away
  4. 1.65 km WNW of Wauna, Washington · 18181 days ago · 19 km deep · 77 km away
  5. 1.62 km W of Wilderness Rim, Washington · 18180 days ago · 10 km deep · 93 km away
  6. 2.313 km ENE of Ashford, Washington · 18171 days ago · 13 km deep · 45 km away
  7. 2.511 km NW of Belfair, Washington · 18170 days ago · 46 km deep · 94 km away
  8. 2.25 km W of Gorst, Washington · 18162 days ago · 19 km deep · 92 km away
  9. 1.93 km WSW of White Center, Washington · 18161 days ago · 29 km deep · 85 km away
  10. 2.39 km N of Greenwater, Washington · 18158 days ago · 14 km deep · 82 km away
  11. 2.57 km S of Morton, Washington · 18157 days ago · 8 km deep · 29 km away
  12. 2.13 km W of Mineral, Washington · 18155 days ago · 10 km deep · 17 km away
  13. 1.92 km SW of Mineral, Washington · 18155 days ago · 5 km deep · 18 km away
  14. 1.73 km W of Mineral, Washington · 18155 days ago · 10 km deep · 16 km away

Before

  1. 1.61 km ENE of Riverton, Washington · 18214 days ago · 23 km deep · 85 km away
  2. 2.924 km ENE of Ashford, Washington · 18219 days ago · 4 km deep · 54 km away
  3. 3.122 km ENE of Ashford, Washington · 18219 days ago · -1 km deep · 53 km away
  4. 1.86 km SSW of Southworth, Washington · 18225 days ago · 23 km deep · 82 km away
  5. 2.211 km S of Greenwater, Washington · 18235 days ago · 4 km deep · 69 km away
  6. 1.96 km N of Packwood, Washington · 18237 days ago · 1 km deep · 59 km away
  7. 1.84 km S of Orting, Washington · 18241 days ago · -1 km deep · 40 km away
  8. 1.91 km W of Hobart, Washington · 18241 days ago · 18 km deep · 84 km away
  9. 1.97 km ENE of Hobart, Washington · 18241 days ago · 22 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10842578. Read Tue, Sep 29, 2026, 9:48 AM UTC.