Washington earthquakes

M1.8 earthquake Washington

A magnitude 1.8 earthquake struck in Washington on Mon, Mar 22, 1976, 8:45 PM PST (04:45 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.9 22 km E of Desert Aire, Washington. This one was a foreshock.

Desert Aire 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
1.8 (md), micro
Local time
UTC
1976-03-23 04:45:22 UTC
Depth
0.1 km (0.0 mi), shallow
Epicenter
46.648° N, 119.632° 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 0.4 km horizontally
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
75°
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: 7 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.621 km E of Desert Aire, Washington · 18439 days ago · 3 km deep · 0 km away
  2. 1.922 km E of Desert Aire, Washington · 18418 days ago · 2 km deep · 0 km away
  3. 1.64 km WSW of Connell, Washington · 18417 days ago · 8 km deep · 55 km away
  4. 1.912 km W of Quincy, Washington · 18401 days ago · 0 km deep · 71 km away
  5. 1.617 km ENE of George, Washington · 18395 days ago · 12 km deep · 53 km away
  6. 1.818 km ENE of George, Washington · 18395 days ago · 16 km deep · 55 km away
  7. 1.817 km ENE of George, Washington · 18395 days ago · 4 km deep · 54 km away

Before

  1. 1.8Washington · 18447 days ago · 2 km deep · 38 km away
  2. 1.616 km NNE of West Richland, Washington · 18452 days ago · 0 km deep · 37 km away
  3. 1.621 km E of Desert Aire, Washington · 18453 days ago · 3 km deep · 0 km away
  4. 1.619 km E of Desert Aire, Washington · 18454 days ago · 16 km deep · 3 km away
  5. 1.84 km ENE of Royal City, Washington · 18462 days ago · 16 km deep · 29 km away
  6. 2.113 km NNE of Touchet, Washington · 18467 days ago · 5 km deep · 94 km away
  7. 2.05 km SSE of Vantage, Washington · 18470 days ago · 4 km deep · 37 km away
  8. 2.015 km S of Benton City, Washington · 18474 days ago · 2 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10840978. Read Wed, Sep 23, 2026, 7:31 AM UTC.