Washington earthquakes

M2.1 earthquake 27 km ESE of Glacier, Washington

A magnitude 2.1 earthquake struck 27 km ESE of Glacier, Washington on Thu, Jun 30, 1983, 6:39 PM PDT (01:39 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.5 4 km NNW of Verlot, Washington. This one was a foreshock.

Concrete 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
2.1 (md), micro
Local time
UTC
1983-07-01 01:39:02 UTC
Depth
-1.0 km (-0.6 mi), shallow
Epicenter
48.804° N, 121.595° 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 0.9 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
238°, poorly surrounded by stations
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.89 km S of Anacortes, Washington · 15786 days ago · 21 km deep · 86 km away
  2. 1.95 km ENE of Verlot, Washington · 15783 days ago · 13 km deep · 77 km away
  3. 1.78 km N of Sedro-Woolley, Washington · 15783 days ago · 12 km deep · 52 km away
  4. 2.54 km NNW of Verlot, Washington · 15777 days ago · 14 km deep · 77 km away
  5. 1.87 km SSE of Verlot, Washington · 15772 days ago · -1 km deep · 86 km away
  6. 2.217 km NNE of May Creek, Washington · 15769 days ago · 0 km deep · 89 km away
  7. 1.55 km SSE of Swede Heaven, Washington · 15758 days ago · 9 km deep · 63 km away
  8. 1.76 km WNW of La Conner, Washington · 15755 days ago · 22 km deep · 84 km away
  9. 1.640 km WSW of Twisp, Washington · 15734 days ago · 6 km deep · 91 km away
  10. 1.937 km WSW of Winthrop, Washington · 15734 days ago · 5 km deep · 89 km away
  11. 1.73 km ENE of Granite Falls, Washington · 15732 days ago · -1 km deep · 83 km away

Before

  1. 1.57 km ENE of Verlot, Washington · 15793 days ago · 8 km deep · 77 km away
  2. 2.113 km S of Chilliwack, Canada · 15795 days ago · -1 km deep · 36 km away
  3. 2.010 km NW of Concrete, Washington · 15804 days ago · 0 km deep · 27 km away
  4. 1.65 km E of Ault Field, Washington · 15805 days ago · 23 km deep · 90 km away
  5. 1.64 km N of Bryant, Washington · 15812 days ago · 16 km deep · 71 km away
  6. 2.03 km NE of Lake Roesiger, Washington · 15815 days ago · 14 km deep · 91 km away
  7. 2.14 km NE of Lake Roesiger, Washington · 15815 days ago · 14 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10154728. Read Tue, Sep 22, 2026, 3:14 PM UTC.