Washington earthquakes

M2.0 earthquake 11 km SE of Prosser, Washington

A magnitude 2.0 earthquake struck 11 km SE of Prosser, Washington on Mon, Sep 8, 1975, 3:44 AM PDT (10:44 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M2.9 15 km WNW of Othello, Washington. This one was a foreshock.

Prosser 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
2.0 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1975-09-08 10:44:44 UTC
Depth
18.8 km (11.7 mi), shallow
Epicenter
46.133° N, 119.663° 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 0.7 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
205°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.94 km N of Connell, Washington · 18644 days ago · 5 km deep · 88 km away
  2. 1.98 km NW of Connell, Washington · 18635 days ago · 7 km deep · 87 km away
  3. 2.26 km NW of Connell, Washington · 18620 days ago · 10 km deep · 85 km away
  4. 2.35 km WNW of Connell, Washington · 18620 days ago · 11 km deep · 84 km away
  5. 1.714 km NNE of West Richland, Washington · 18617 days ago · 0 km deep · 44 km away
  6. 2.24 km WNW of Connell, Washington · 18616 days ago · 12 km deep · 84 km away
  7. 2.43 km NNW of Connell, Washington · 18616 days ago · 5 km deep · 86 km away
  8. 1.94 km NW of Connell, Washington · 18605 days ago · 4 km deep · 86 km away
  9. 1.615 km SE of Desert Aire, Washington · 18599 days ago · 20 km deep · 50 km away
  10. 1.619 km NNW of Irrigon, Oregon · 18596 days ago · 18 km deep · 11 km away
  11. 1.914 km NNE of West Richland, Washington · 18595 days ago · 0 km deep · 44 km away
  12. 2.915 km WNW of Othello, Washington · 18593 days ago · 3 km deep · 86 km away

Before

  1. 1.611 km SE of Prosser, Washington · 18653 days ago · 17 km deep · 1 km away
  2. 2.02 km SSW of Benton City, Washington · 18656 days ago · 0 km deep · 18 km away
  3. 1.715 km ESE of Desert Aire, Washington · 18661 days ago · 16 km deep · 56 km away
  4. 2.113 km SE of Desert Aire, Washington · 18662 days ago · 12 km deep · 54 km away
  5. 1.513 km SE of Desert Aire, Washington · 18662 days ago · 9 km deep · 54 km away
  6. 1.513 km SE of Desert Aire, Washington · 18662 days ago · 9 km deep · 54 km away
  7. 2.313 km SE of Desert Aire, Washington · 18662 days ago · 12 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10861693. Read Sat, Oct 3, 2026, 12:05 PM UTC.