Washington earthquakes

M2.7 earthquake Washington

A magnitude 2.7 earthquake struck in Washington on Tue, Sep 21, 1971, 6:16 AM PDT (13:16 UTC), 2 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.

Open the live map with earthquakes

The earthquake

Magnitude
2.7 (md), micro
Local time
UTC
1971-09-21 13:16:25 UTC
Depth
2.0 km (1.2 mi), shallow
Epicenter
46.685° N, 119.234° 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, 1.1 km in depth
Magnitude uncertainty
±0.29
Depth from
From location
Station coverage gap
70°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.512 km NNW of Basin City, Washington · 20091 days ago · 1 km deep · 1 km away
  2. 1.611 km NNW of Basin City, Washington · 20087 days ago · 2 km deep · 0 km away
  3. 1.912 km NW of Basin City, Washington · 20086 days ago · 1 km deep · 1 km away
  4. 1.712 km NW of Basin City, Washington · 20081 days ago · 1 km deep · 1 km away
  5. 1.51 km SSE of Wapato, Washington · 20071 days ago · 18 km deep · 95 km away
  6. 1.53 km SE of Wapato, Washington · 20071 days ago · 8 km deep · 93 km away
  7. 3.822 km SSE of Royal City, Washington · 20057 days ago · 4 km deep · 24 km away
  8. 2.010 km NNW of Basin City, Washington · 20055 days ago · 0 km deep · 1 km away
  9. 1.613 km E of Moses Lake, Washington · 20046 days ago · 0 km deep · 48 km away
  10. 1.919 km SW of Othello, Washington · 20039 days ago · 0 km deep · 11 km away
  11. 1.919 km SW of Othello, Washington · 20035 days ago · 0 km deep · 11 km away
  12. 2.35 km NW of Kahlotus, Washington · 20033 days ago · 6 km deep · 48 km away
  13. 1.520 km SW of Othello, Washington · 20033 days ago · 2 km deep · 11 km away

Before

  1. 1.618 km SE of Royal City, Washington · 20103 days ago · 0 km deep · 20 km away
  2. 1.74 km N of Kahlotus, Washington · 20106 days ago · 5 km deep · 52 km away
  3. 1.519 km SE of Royal City, Washington · 20115 days ago · 0 km deep · 19 km away
  4. 1.518 km SW of Othello, Washington · 20115 days ago · 3 km deep · 8 km away
  5. 1.518 km SW of Othello, Washington · 20116 days ago · 0 km deep · 9 km away
  6. 1.918 km SW of Othello, Washington · 20116 days ago · 1 km deep · 9 km away
  7. 1.611 km ESE of Royal City, Washington · 20117 days ago · 2 km deep · 28 km away
  8. 1.518 km SW of Othello, Washington · 20120 days ago · 0 km deep · 10 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10839773. Read Wed, Sep 23, 2026, 7:45 AM UTC.