Washington earthquakes

M1.7 earthquake 15 km ESE of Royal City, Washington

A magnitude 1.7 earthquake struck 15 km ESE of Royal City, Washington on Tue, Jun 6, 1978, 6:22 PM PDT (01:22 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.0 14 km SE of Royal City, Washington. This one was a foreshock.

Royal 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
1978-06-07 01:22:33 UTC
Depth
0.3 km (0.2 mi), shallow
Epicenter
46.830° N, 119.463° 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 0.4 km horizontally
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
167°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.014 km SE of Royal City, Washington · 17640 days ago · 0 km deep · 1 km away
  2. 2.015 km ESE of Royal City, Washington · 17640 days ago · 3 km deep · 0 km away
  3. 1.513 km ESE of Royal City, Washington · 17640 days ago · 0 km deep · 2 km away
  4. 1.616 km ESE of Royal City, Washington · 17639 days ago · 1 km deep · 1 km away
  5. 1.715 km ESE of Royal City, Washington · 17639 days ago · 2 km deep · 1 km away
  6. 1.721 km E of Desert Aire, Washington · 17638 days ago · 2 km deep · 24 km away
  7. 1.96 km SW of Connell, Washington · 17603 days ago · 8 km deep · 47 km away
  8. 2.214 km W of Othello, Washington · 17600 days ago · 0 km deep · 7 km away

Before

  1. 1.516 km ESE of Royal City, Washington · 17647 days ago · 2 km deep · 1 km away
  2. 1.516 km ESE of Royal City, Washington · 17647 days ago · 0 km deep · 1 km away
  3. 1.515 km ESE of Royal City, Washington · 17648 days ago · 0 km deep · 1 km away
  4. 1.815 km ESE of Royal City, Washington · 17648 days ago · 0 km deep · 1 km away
  5. 1.714 km ESE of Royal City, Washington · 17649 days ago · 0 km deep · 1 km away
  6. 1.516 km ESE of Royal City, Washington · 17649 days ago · 3 km deep · 2 km away
  7. 1.615 km ESE of Royal City, Washington · 17649 days ago · 0 km deep · 1 km away
  8. 1.815 km ESE of Royal City, Washington · 17649 days ago · 0 km deep · 1 km away
  9. 2.010 km SSE of Royal City, Washington · 17650 days ago · 4 km deep · 8 km away
  10. 1.515 km ESE of Royal City, Washington · 17656 days ago · 0 km deep · 1 km away
  11. 1.521 km WSW of Basin City, Washington · 17662 days ago · 17 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10847113. Read Tue, Sep 22, 2026, 8:50 PM UTC.