Washington earthquakes

M1.5 earthquake 4 km SSE of Prosser, Washington

A magnitude 1.5 earthquake struck 4 km SSE of Prosser, Washington on Mon, Apr 3, 1989, 9:43 PM PDT (04:43 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.4 25 km ENE of Burbank, 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
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1989-04-04 04:43:12 UTC
Depth
5.9 km (3.7 mi), shallow
Epicenter
46.175° N, 119.741° 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, 0.4 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
136°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.720 km N of Boardman, Oregon · 13686 days ago · 9 km deep · 17 km away
  2. 1.922 km NNE of Terrace Heights, Washington · 13686 days ago · 2 km deep · 79 km away
  3. 1.9Washington · 13678 days ago · 0 km deep · 81 km away
  4. 1.610 km SE of Connell, Washington · 13677 days ago · 0 km deep · 87 km away
  5. 1.727 km W of Prescott, Washington · 13672 days ago · 0 km deep · 84 km away
  6. 2.25 km SSW of Connell, Washington · 13661 days ago · 1 km deep · 82 km away
  7. 2.35 km S of Connell, Washington · 13650 days ago · 0 km deep · 84 km away
  8. 2.425 km ENE of Burbank, Washington · 13643 days ago · 2 km deep · 80 km away
  9. 1.910 km SW of Royal City, Washington · 13639 days ago · 1 km deep · 75 km away

Before

  1. 2.514 km SW of Basin City, Washington · 13696 days ago · 1 km deep · 51 km away
  2. 1.616 km NNE of West Richland, Washington · 13699 days ago · 0 km deep · 46 km away
  3. 1.917 km SW of Bickleton, Washington · 13702 days ago · 13 km deep · 65 km away
  4. 3.18 km NNW of Roosevelt, Washington · 13703 days ago · 12 km deep · 57 km away
  5. 2.316 km S of White Swan, Washington · 13706 days ago · 3 km deep · 74 km away
  6. 2.114 km SW of Basin City, Washington · 13707 days ago · 1 km deep · 50 km away
  7. 2.122 km WSW of Othello, Washington · 13708 days ago · 0 km deep · 67 km away
  8. 2.222 km NNW of Benton City, Washington · 13710 days ago · 16 km deep · 34 km away
  9. 2.7Washington · 13714 days ago · 1 km deep · 88 km away
  10. 1.69 km NW of Royal City, Washington · 13714 days ago · 2 km deep · 88 km away
  11. 1.86 km W of Mattawa, Washington · 13723 days ago · 5 km deep · 64 km away
  12. 1.711 km NNE of West Richland, Washington · 13724 days ago · 0 km deep · 43 km away
  13. 2.213 km NNE of West Richland, Washington · 13724 days ago · 2 km deep · 44 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10239343. Read Sat, Oct 3, 2026, 2:42 AM UTC.