Washington earthquakes

M1.5 earthquake 0 km NNW of Dallesport, Washington

A magnitude 1.5 earthquake struck 0 km NNW of Dallesport, Washington on Tue, Mar 17, 1981, 5:40 PM PST (01:40 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M1.8 38 km NE of Amboy, Washington. This one was a foreshock.

Dallesport 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
1.5 (md), micro
Local time
UTC
1981-03-18 01:40:52 UTC
Depth
8.8 km (5.5 mi), shallow
Epicenter
45.625° N, 121.185° 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 1.4 km horizontally
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
177°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.838 km NE of Amboy, Washington · 16622 days ago · 7 km deep · 93 km away
  2. 1.531 km NNE of Idanha, Oregon · 16616 days ago · 15 km deep · 93 km away
  3. 1.737 km NE of Amboy, Washington · 16602 days ago · -1 km deep · 98 km away
  4. 1.737 km NNE of Amboy, Washington · 16602 days ago · 0 km deep · 100 km away
  5. 1.936 km NNE of Amboy, Washington · 16601 days ago · 0 km deep · 100 km away
  6. 2.538 km NNE of Amboy, Washington · 16601 days ago · -1 km deep · 100 km away
  7. 1.634 km NNE of Amboy, Washington · 16601 days ago · -1 km deep · 100 km away
  8. 1.72 km NNE of Centerville, Washington · 16601 days ago · 6 km deep · 28 km away
  9. 1.636 km NNE of Amboy, Washington · 16601 days ago · -1 km deep · 100 km away
  10. 1.712 km SSW of Trout Lake, Washington · 16591 days ago · -1 km deep · 42 km away
  11. 1.9Oregon · 16588 days ago · 6 km deep · 97 km away
  12. 1.818 km ESE of Arlington, Oregon · 16584 days ago · -1 km deep · 95 km away
  13. 1.83 km N of Mount Hood, Oregon · 16582 days ago · 4 km deep · 31 km away
  14. 1.810 km W of Pine Hollow, Oregon · 16579 days ago · 4 km deep · 45 km away
  15. 2.16 km W of Pine Grove, Oregon · 16579 days ago · 5 km deep · 60 km away
  16. 2.137 km SSE of Morton, Washington · 16577 days ago · 10 km deep · 97 km away
  17. 1.734 km NE of Amboy, Washington · 16577 days ago · 5 km deep · 91 km away
  18. 1.57 km NNE of Government Camp, Oregon · 16576 days ago · 3 km deep · 51 km away
  19. 1.537 km SSE of Morton, Washington · 16570 days ago · 10 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10105843. Read Wed, Sep 23, 2026, 3:03 AM UTC.