Washington earthquakes

M1.9 earthquake 4 km NW of Connell, Washington

A magnitude 1.9 earthquake struck 4 km NW of Connell, Washington on Sun, Oct 26, 1975, 10:44 AM PST (18:44 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.9 15 km WNW of Othello, Washington. This one was a foreshock.

Connell 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
1.9 (md), micro
Local time
UTC
1975-10-26 18:44:31 UTC
Depth
4.4 km (2.7 mi), shallow
Epicenter
46.693° N, 118.892° 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 0.8 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
197°, poorly surrounded by stations
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.615 km SE of Desert Aire, Washington · 18588 days ago · 20 km deep · 71 km away
  2. 1.619 km NNW of Irrigon, Oregon · 18585 days ago · 18 km deep · 87 km away
  3. 1.914 km NNE of West Richland, Washington · 18585 days ago · 0 km deep · 42 km away
  4. 2.915 km WNW of Othello, Washington · 18583 days ago · 3 km deep · 42 km away
  5. 1.814 km NNE of West Richland, Washington · 18574 days ago · 0 km deep · 42 km away
  6. 1.94 km SSE of Vantage, Washington · 18563 days ago · 6 km deep · 85 km away
  7. 1.914 km NNE of West Richland, Washington · 18561 days ago · 0 km deep · 42 km away
  8. 1.94 km ESE of Vantage, Washington · 18551 days ago · 3 km deep · 83 km away
  9. 1.717 km ENE of George, Washington · 18548 days ago · 14 km deep · 74 km away
  10. 1.514 km SSW of Othello, Washington · 18540 days ago · 24 km deep · 27 km away

Before

  1. 2.43 km NNW of Connell, Washington · 18606 days ago · 5 km deep · 1 km away
  2. 2.24 km WNW of Connell, Washington · 18606 days ago · 12 km deep · 2 km away
  3. 1.714 km NNE of West Richland, Washington · 18607 days ago · 0 km deep · 42 km away
  4. 2.35 km WNW of Connell, Washington · 18610 days ago · 11 km deep · 2 km away
  5. 2.26 km NW of Connell, Washington · 18610 days ago · 10 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10862103. Read Wed, Sep 23, 2026, 5:34 AM UTC.