Washington earthquakes

M2.1 earthquake 0 km NNW of Alger, Washington

A magnitude 2.1 earthquake struck 0 km NNW of Alger, Washington on Mon, Oct 30, 1972, 12:28 PM PST (20:28 UTC), 25 km (15 mi) below the surface.

A larger quake followed: M4.1 3 km SE of Oak Bay, Canada. 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
2.1 (md), micro
Local time
UTC
1972-10-30 20:28:41 UTC
Depth
24.8 km (15.4 mi), shallow
Epicenter
48.626° N, 122.344° 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 1.6 km horizontally, 2.4 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
293°, 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: 18 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.712 km NNE of May Creek, Washington · 19677 days ago · 30 km deep · 91 km away
  2. 4.13 km SE of Oak Bay, Canada · 19675 days ago · 44 km deep · 72 km away
  3. 3.30 km SW of Kenmore, Washington · 19670 days ago · 18 km deep · 97 km away
  4. 1.75 km N of Lofall, Washington · 19666 days ago · 18 km deep · 88 km away
  5. 2.44 km ESE of Acme, Washington · 19662 days ago · 17 km deep · 16 km away
  6. 2.04 km ESE of Acme, Washington · 19662 days ago · 17 km deep · 17 km away
  7. 2.24 km NE of Swede Heaven, Washington · 19661 days ago · -1 km deep · 60 km away
  8. 2.07 km NE of Quilcene, Washington · 19655 days ago · 46 km deep · 91 km away
  9. 2.45 km SSE of Acme, Washington · 19655 days ago · 9 km deep · 14 km away
  10. 1.75 km SW of Verlot, Washington · 19654 days ago · -1 km deep · 73 km away
  11. 2.12 km NW of Clear Lake, Washington · 19652 days ago · 22 km deep · 17 km away
  12. 3.24 km SE of Kingston, Washington · 19648 days ago · 20 km deep · 96 km away
  13. 1.76 km S of Port Hadlock-Irondale, Washington · 19648 days ago · 29 km deep · 80 km away
  14. 3.34 km WSW of Orcas, Washington · 19645 days ago · 5 km deep · 49 km away
  15. 2.03 km WNW of Orcas, Washington · 19645 days ago · 12 km deep · 47 km away
  16. 2.76 km ESE of Deming, Washington · 19645 days ago · 8 km deep · 25 km away
  17. 2.66 km E of Deming, Washington · 19645 days ago · 9 km deep · 27 km away
  18. 1.93 km NNE of Indianola, Washington · 19630 days ago · 15 km deep · 96 km away

Before

  1. 1.72 km ESE of Hansville, Washington · 19693 days ago · 14 km deep · 81 km away
  2. 1.63 km N of Woods Creek, Washington · 19696 days ago · 4 km deep · 86 km away
  3. 3.06 km E of Deming, Washington · 19698 days ago · 11 km deep · 27 km away
  4. 2.07 km WSW of Lofall, Washington · 19702 days ago · 18 km deep · 97 km away
  5. 2.96 km W of Lake Cavanaugh, Washington · 19703 days ago · 14 km deep · 37 km away
  6. 2.40 km NE of Esperance, Washington · 19703 days ago · 19 km deep · 93 km away
  7. 2.73 km W of Sedro-Woolley, Washington · 19705 days ago · 20 km deep · 15 km away
  8. 1.67 km S of Port Hadlock-Irondale, Washington · 19709 days ago · 15 km deep · 80 km away
  9. 3.12 km SSE of Big Lake, Washington · 19711 days ago · 18 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10854683. Read Tue, Sep 22, 2026, 7:23 AM UTC.