Washington earthquakes

M1.8 earthquake 3 km ENE of Deming, Washington

A magnitude 1.8 earthquake struck 3 km ENE of Deming, Washington on Tue, Jul 9, 1991, 3:57 PM PDT (22:57 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.5 17 km S of Glacier, 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
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1991-07-09 22:57:23 UTC
Depth
0.7 km (0.4 mi), shallow
Epicenter
48.841° N, 122.169° 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 1.5 km horizontally, 8.0 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
94°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.03 km WSW of Langley, Canada · 12858 days ago · 12 km deep · 48 km away
  2. 2.14 km NNW of Hamilton, Washington · 12853 days ago · -1 km deep · 34 km away
  3. 2.07 km W of Aldergrove, Canada · 12836 days ago · 71 km deep · 37 km away
  4. 1.56 km ESE of Alger, Washington · 12835 days ago · -1 km deep · 28 km away
  5. 1.55 km NE of Marrowstone, Washington · 12831 days ago · 26 km deep · 91 km away
  6. 2.517 km S of Glacier, Washington · 12831 days ago · -1 km deep · 21 km away
  7. 2.021 km ESE of Darrington, Washington · 12830 days ago · 0 km deep · 94 km away
  8. 2.022 km E of Darrington, Washington · 12830 days ago · 0 km deep · 94 km away
  9. 1.52 km SSE of Orcas, Washington · 12828 days ago · 56 km deep · 63 km away
  10. 2.04 km N of Friday Harbor, Washington · 12827 days ago · 54 km deep · 70 km away
  11. 2.21 km NNW of Lake Roesiger, Washington · 12826 days ago · 11 km deep · 96 km away
  12. 1.91 km NW of Lake Roesiger, Washington · 12824 days ago · 11 km deep · 96 km away
  13. 1.81 km N of Lake Roesiger, Washington · 12823 days ago · 11 km deep · 96 km away
  14. 1.98 km SSE of Coupeville, Washington · 12823 days ago · 20 km deep · 84 km away
  15. 2.25 km ESE of Alger, Washington · 12822 days ago · 2 km deep · 28 km away
  16. 1.724 km NNE of Concrete, Washington · 12819 days ago · -1 km deep · 41 km away
  17. 2.01 km NW of Lake Roesiger, Washington · 12818 days ago · 11 km deep · 96 km away

Before

  1. 1.79 km ENE of Maple Ridge, Canada · 12873 days ago · 8 km deep · 52 km away
  2. 3.06 km ENE of Maple Ridge, Canada · 12876 days ago · 5 km deep · 51 km away
  3. 1.50 km NE of Ferndale, Washington · 12889 days ago · 7 km deep · 30 km away
  4. 1.53 km WNW of Deming, Washington · 12892 days ago · 12 km deep · 7 km away
  5. 1.93 km N of Rockport, Washington · 12894 days ago · 1 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10276753. Read Sat, Oct 3, 2026, 11:41 AM UTC.