Washington earthquakes

M1.9 earthquake 12 km NW of Basin City, Washington

A magnitude 1.9 earthquake struck 12 km NW of Basin City, Washington on Sat, Sep 25, 1971, 11:47 PM PDT (06:47 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.8 22 km SSE of Royal City, Washington. This one was a foreshock.

Basin City 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
1971-09-26 06:47:02 UTC
Depth
0.9 km (0.6 mi), shallow
Epicenter
46.685° N, 119.245° 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 0.2 km horizontally, 1.7 km in depth
Magnitude uncertainty
±0.28
Depth from
From location
Station coverage gap
69°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.712 km NW of Basin City, Washington · 20085 days ago · 1 km deep · 1 km away
  2. 1.51 km SSE of Wapato, Washington · 20076 days ago · 18 km deep · 94 km away
  3. 1.53 km SE of Wapato, Washington · 20076 days ago · 8 km deep · 92 km away
  4. 3.822 km SSE of Royal City, Washington · 20061 days ago · 4 km deep · 23 km away
  5. 2.010 km NNW of Basin City, Washington · 20059 days ago · 0 km deep · 2 km away
  6. 1.613 km E of Moses Lake, Washington · 20050 days ago · 0 km deep · 48 km away
  7. 1.919 km SW of Othello, Washington · 20043 days ago · 0 km deep · 10 km away
  8. 1.919 km SW of Othello, Washington · 20039 days ago · 0 km deep · 10 km away
  9. 2.35 km NW of Kahlotus, Washington · 20038 days ago · 6 km deep · 49 km away
  10. 1.520 km SW of Othello, Washington · 20038 days ago · 2 km deep · 10 km away
  11. 1.518 km SW of Othello, Washington · 20031 days ago · 0 km deep · 9 km away

Before

  1. 1.611 km NNW of Basin City, Washington · 20092 days ago · 2 km deep · 1 km away
  2. 1.512 km NNW of Basin City, Washington · 20095 days ago · 1 km deep · 0 km away
  3. 2.7Washington · 20095 days ago · 2 km deep · 1 km away
  4. 1.618 km SE of Royal City, Washington · 20107 days ago · 0 km deep · 19 km away
  5. 1.74 km N of Kahlotus, Washington · 20110 days ago · 5 km deep · 53 km away
  6. 1.519 km SE of Royal City, Washington · 20120 days ago · 0 km deep · 19 km away
  7. 1.518 km SW of Othello, Washington · 20120 days ago · 3 km deep · 7 km away
  8. 1.518 km SW of Othello, Washington · 20120 days ago · 0 km deep · 8 km away
  9. 1.918 km SW of Othello, Washington · 20120 days ago · 1 km deep · 8 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10839823. Read Sun, Sep 27, 2026, 7:09 PM UTC.