Oregon earthquakes

M2.5 earthquake 4 km ENE of Echo, Oregon

A magnitude 2.5 earthquake struck 4 km ENE of Echo, Oregon on Tue, Sep 29, 1970, 10:50 AM PDT (17:50 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M2.9 16 km NNE of West Richland, Washington. This one was a foreshock.

Echo forecastMore in Oregon

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.5 (md), micro
Local time
UTC
1970-09-29 17:50:13 UTC
Depth
19.4 km (12.0 mi), shallow
Epicenter
45.761° N, 119.145° W
Region
Oregon
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 2.0 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.26
Depth from
From location
Station coverage gap
323°, poorly surrounded by stations
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.810 km E of Prosser, Washington · 20439 days ago · 12 km deep · 61 km away
  2. 2.08 km NNW of Mesa, Washington · 20433 days ago · 5 km deep · 99 km away
  3. 1.57 km NE of Basin City, Washington · 20431 days ago · 4 km deep · 99 km away
  4. 1.86 km NE of Basin City, Washington · 20431 days ago · 3 km deep · 98 km away
  5. 1.86 km NE of Basin City, Washington · 20431 days ago · 3 km deep · 98 km away
  6. 1.86 km NE of Basin City, Washington · 20426 days ago · 3 km deep · 98 km away
  7. 1.77 km NE of Basin City, Washington · 20425 days ago · 0 km deep · 98 km away
  8. 1.66 km NE of Basin City, Washington · 20416 days ago · 0 km deep · 98 km away
  9. 1.513 km NNE of West Richland, Washington · 20408 days ago · 0 km deep · 75 km away
  10. 2.916 km NNE of West Richland, Washington · 20408 days ago · 0 km deep · 77 km away
  11. 1.613 km NNE of West Richland, Washington · 20408 days ago · 0 km deep · 75 km away
  12. 2.014 km NNE of West Richland, Washington · 20408 days ago · 0 km deep · 75 km away
  13. 2.019 km S of Mesa, Washington · 20407 days ago · 0 km deep · 72 km away
  14. 2.914 km NNE of West Richland, Washington · 20401 days ago · 1 km deep · 75 km away
  15. 1.87 km NE of Basin City, Washington · 20396 days ago · 4 km deep · 98 km away
  16. 2.114 km NNE of West Richland, Washington · 20393 days ago · 0 km deep · 75 km away
  17. 1.816 km NNE of West Richland, Washington · 20388 days ago · 0 km deep · 76 km away
  18. 2.016 km NNE of West Richland, Washington · 20388 days ago · 1 km deep · 76 km away
  19. 2.316 km NNE of West Richland, Washington · 20388 days ago · 2 km deep · 76 km away
  20. 1.914 km NNE of West Richland, Washington · 20388 days ago · 3 km deep · 74 km away

Before

  1. 1.63 km WNW of Benton City, Washington · 20456 days ago · 8 km deep · 64 km away
  2. 1.814 km NNE of West Richland, Washington · 20457 days ago · 0 km deep · 74 km away
  3. 1.510 km SW of Benton City, Washington · 20462 days ago · 21 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10837018. Read Tue, Sep 22, 2026, 11:33 AM UTC.