Washington earthquakes

M1.7 earthquake 4 km W of Connell, Washington

A magnitude 1.7 earthquake struck 4 km W of Connell, Washington on Fri, Jul 9, 1971, 4:17 PM PDT (23:17 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.9 7 km SSW of Royal City, 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
1971-07-09 23:17:42 UTC
Depth
-0.3 km (-0.2 mi), shallow
Epicenter
46.664° N, 118.915° 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
±0.29
Depth from
Operator assigned
Station coverage gap
214°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 1.57 km SSW of Royal City, Washington · 20164 days ago · 0 km deep · 62 km away
  2. 1.97 km SSW of Royal City, Washington · 20163 days ago · 0 km deep · 62 km away
  3. 2.08 km SW of Royal City, Washington · 20163 days ago · 0 km deep · 62 km away
  4. 2.016 km SW of Othello, Washington · 20154 days ago · 0 km deep · 33 km away
  5. 1.816 km SW of Othello, Washington · 20150 days ago · 3 km deep · 34 km away
  6. 1.815 km SW of Othello, Washington · 20150 days ago · 1 km deep · 33 km away
  7. 1.516 km W of Othello, Washington · 20138 days ago · 0 km deep · 40 km away
  8. 1.615 km SW of Othello, Washington · 20134 days ago · 0 km deep · 34 km away
  9. 2.29 km W of Benton City, Washington · 20122 days ago · 9 km deep · 69 km away
  10. 1.518 km SW of Othello, Washington · 20120 days ago · 0 km deep · 34 km away
  11. 1.611 km ESE of Royal City, Washington · 20117 days ago · 2 km deep · 49 km away
  12. 1.918 km SW of Othello, Washington · 20115 days ago · 1 km deep · 33 km away
  13. 1.518 km SW of Othello, Washington · 20115 days ago · 0 km deep · 33 km away
  14. 1.518 km SW of Othello, Washington · 20115 days ago · 3 km deep · 32 km away
  15. 1.519 km SE of Royal City, Washington · 20115 days ago · 0 km deep · 42 km away
  16. 1.74 km N of Kahlotus, Washington · 20106 days ago · 5 km deep · 28 km away

Before

  1. 1.612 km N of West Richland, Washington · 20174 days ago · 5 km deep · 45 km away
  2. 2.23 km WSW of West Richland, Washington · 20184 days ago · 6 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10839298. Read Tue, Sep 22, 2026, 9:25 PM UTC.