Washington earthquakes

M1.7 earthquake 3 km NW of Connell, Washington

A magnitude 1.7 earthquake struck 3 km NW of Connell, Washington on Mon, Mar 22, 1971, 6:38 PM PST (02:38 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.8 13 km SSW of Vantage, 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
1.7 (md), micro
Local time
UTC
1971-03-23 02:38:06 UTC
Depth
-0.2 km (-0.2 mi), shallow
Epicenter
46.686° N, 118.898° 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 0.1 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.30
Depth from
Operator assigned
Station coverage gap
232°, 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: 15 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.53 km NNW of Connell, Washington · 20271 days ago · 0 km deep · 1 km away
  2. 1.813 km SSW of Vantage, Washington · 20271 days ago · 0 km deep · 87 km away
  3. 1.812 km SE of Royal City, Washington · 20261 days ago · 2 km deep · 49 km away
  4. 1.611 km SSE of Royal City, Washington · 20259 days ago · 3 km deep · 52 km away
  5. 1.814 km W of Othello, Washington · 20259 days ago · 0 km deep · 39 km away
  6. 1.93 km NW of Connell, Washington · 20253 days ago · 1 km deep · 0 km away
  7. 2.33 km NW of Connell, Washington · 20252 days ago · 2 km deep · 0 km away
  8. 1.93 km NW of Connell, Washington · 20252 days ago · 2 km deep · 0 km away
  9. 1.53 km NW of Connell, Washington · 20251 days ago · 0 km deep · 0 km away
  10. 1.816 km WNW of Othello, Washington · 20240 days ago · 3 km deep · 43 km away
  11. 1.73 km NNW of Connell, Washington · 20236 days ago · 0 km deep · 1 km away
  12. 1.711 km SSW of Benton City, Washington · 20235 days ago · 6 km deep · 77 km away
  13. 1.922 km E of Desert Aire, Washington · 20231 days ago · 6 km deep · 56 km away
  14. 1.913 km N of Pasco, Washington · 20223 days ago · 4 km deep · 39 km away
  15. 1.914 km N of Pasco, Washington · 20223 days ago · 5 km deep · 38 km away

Before

  1. 2.35 km WNW of Garrett, Washington · 20274 days ago · 0 km deep · 75 km away
  2. 2.36 km NW of Garrett, Washington · 20274 days ago · 0 km deep · 75 km away
  3. 2.33 km NW of Connell, Washington · 20275 days ago · 3 km deep · 0 km away
  4. 1.93 km NW of Connell, Washington · 20275 days ago · 1 km deep · 1 km away
  5. 1.53 km NW of Connell, Washington · 20275 days ago · 0 km deep · 1 km away
  6. 1.83 km WNW of Connell, Washington · 20276 days ago · 1 km deep · 1 km away
  7. 2.83 km NW of Connell, Washington · 20278 days ago · 1 km deep · 0 km away
  8. 1.611 km SW of Cascade Valley, Washington · 20285 days ago · 0 km deep · 60 km away
  9. 2.316 km S of La Crosse, Washington · 20286 days ago · 0 km deep · 76 km away
  10. 1.511 km NNW of Basin City, Washington · 20293 days ago · 3 km deep · 23 km away
  11. 1.725 km E of Desert Aire, Washington · 20297 days ago · 4 km deep · 52 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10838778. Read Tue, Sep 22, 2026, 2:38 PM UTC.