Washington earthquakes

M2.0 earthquake 19 km SSE of Prosser, Washington

A magnitude 2.0 earthquake struck 19 km SSE of Prosser, Washington on Sat, Dec 29, 1973, 1:51 AM PST (09:51 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.7 14 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), micro
Local time
UTC
1973-12-29 09:51:35 UTC
Depth
9.9 km (6.2 mi), shallow
Epicenter
46.040° N, 119.673° 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 1.1 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
248°, poorly surrounded by stations
Stations used
17

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 6 in the 30 days before it.

After

  1. 1.819 km SSE of Prosser, Washington · 19266 days ago · 10 km deep · 0 km away
  2. 2.319 km SSE of Prosser, Washington · 19266 days ago · 10 km deep · 0 km away
  3. 1.612 km NNE of Basin City, Washington · 19259 days ago · 1 km deep · 85 km away
  4. 2.714 km WNW of Othello, Washington · 19256 days ago · 0 km deep · 96 km away
  5. 1.516 km WNW of Othello, Washington · 19256 days ago · 0 km deep · 94 km away
  6. 1.614 km WSW of Othello, Washington · 19255 days ago · 1 km deep · 87 km away
  7. 2.013 km NNE of Basin City, Washington · 19242 days ago · 3 km deep · 86 km away
  8. 1.815 km WNW of Othello, Washington · 19241 days ago · 2 km deep · 95 km away
  9. 1.66 km S of Royal City, Washington · 19228 days ago · 0 km deep · 89 km away
  10. 1.614 km WNW of Othello, Washington · 19225 days ago · 0 km deep · 96 km away
  11. 2.34 km NE of Prosser, Washington · 19217 days ago · 0 km deep · 22 km away
  12. 2.24 km NE of Prosser, Washington · 19212 days ago · 0 km deep · 22 km away

Before

  1. 2.819 km SSE of Prosser, Washington · 19266 days ago · 11 km deep · 2 km away
  2. 1.820 km SSE of Prosser, Washington · 19266 days ago · 9 km deep · 0 km away
  3. 1.714 km WNW of Othello, Washington · 19273 days ago · 3 km deep · 95 km away
  4. 2.014 km WNW of Othello, Washington · 19275 days ago · 1 km deep · 95 km away
  5. 4.414 km WNW of Othello, Washington · 19275 days ago · 3 km deep · 95 km away
  6. 1.83 km SW of West Richland, Washington · 19290 days ago · 0 km deep · 35 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10858028. Read Mon, Sep 28, 2026, 5:31 AM UTC.