Washington earthquakes

M1.7 earthquake 12 km NW of Basin City, Washington

A magnitude 1.7 earthquake struck 12 km NW of Basin City, Washington on Fri, Oct 1, 1971, 3:48 AM PDT (10:48 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
1.7 (md), micro
Local time
UTC
1971-10-01 10:48:47 UTC
Depth
0.8 km (0.5 mi), shallow
Epicenter
46.686° N, 119.253° 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 0.3 km horizontally, 2.8 km in depth
Magnitude uncertainty
±0.30
Depth from
From location
Station coverage gap
68°
Stations used
12

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 6 in the 30 days before it.

After

  1. 1.51 km SSE of Wapato, Washington · 20076 days ago · 18 km deep · 93 km away
  2. 1.53 km SE of Wapato, Washington · 20076 days ago · 8 km deep · 91 km away
  3. 3.822 km SSE of Royal City, Washington · 20061 days ago · 4 km deep · 23 km away
  4. 2.010 km NNW of Basin City, Washington · 20059 days ago · 0 km deep · 2 km away
  5. 1.613 km E of Moses Lake, Washington · 20051 days ago · 0 km deep · 48 km away
  6. 1.919 km SW of Othello, Washington · 20043 days ago · 0 km deep · 10 km away
  7. 1.919 km SW of Othello, Washington · 20039 days ago · 0 km deep · 9 km away
  8. 2.35 km NW of Kahlotus, Washington · 20038 days ago · 6 km deep · 50 km away
  9. 1.520 km SW of Othello, Washington · 20038 days ago · 2 km deep · 10 km away
  10. 1.518 km SW of Othello, Washington · 20032 days ago · 0 km deep · 9 km away

Before

  1. 1.912 km NW of Basin City, Washington · 20091 days ago · 1 km deep · 1 km away
  2. 1.611 km NNW of Basin City, Washington · 20092 days ago · 2 km deep · 2 km away
  3. 1.512 km NNW of Basin City, Washington · 20095 days ago · 1 km deep · 1 km away
  4. 2.7Washington · 20095 days ago · 2 km deep · 1 km away
  5. 1.618 km SE of Royal City, Washington · 20107 days ago · 0 km deep · 19 km away
  6. 1.74 km N of Kahlotus, Washington · 20111 days ago · 5 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10839843. Read Sun, Sep 27, 2026, 10:49 PM UTC.