M2.6 earthquake 13 km E of Arlington, Oregon
A magnitude 2.6 earthquake struck 13 km E of Arlington, Oregon on Tue, Feb 21, 1989, 11:48 AM PST (19:48 UTC), -1 km (0 mi) below the surface.
A larger quake followed: M3.1 8 km NNW of Roosevelt, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.6 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1989-02-21 19:48:26 UTC
- Depth
- -0.6 km (-0.4 mi), shallow
- Epicenter
- 45.739° N, 120.031° 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 0.1 km horizontally, 0.4 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- Operator assigned
- Station coverage gap
- 70°
- Stations used
- 26
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 5 in the 30 days before it.
After
- 2.213 km NNE of West Richland, Washington · 13725 days ago · 2 km deep · 95 km away
- 1.711 km NNE of West Richland, Washington · 13725 days ago · 0 km deep · 93 km away
- 2.222 km NNW of Benton City, Washington · 13712 days ago · 16 km deep · 87 km away
- 2.316 km S of White Swan, Washington · 13707 days ago · 3 km deep · 76 km away
- 3.18 km NNW of Roosevelt, Washington · 13704 days ago · 12 km deep · 20 km away
- 1.917 km SW of Bickleton, Washington · 13703 days ago · 13 km deep · 39 km away
- 1.616 km NNE of West Richland, Washington · 13700 days ago · 0 km deep · 97 km away
- 1.54 km SSE of Prosser, Washington · 13697 days ago · 6 km deep · 53 km away
- 1.720 km N of Boardman, Oregon · 13687 days ago · 9 km deep · 42 km away
Before
- 2.2Washington · 13748 days ago · 0 km deep · 98 km away
- 2.611 km S of Mabton, Washington · 13750 days ago · -1 km deep · 42 km away
- 1.717 km NNE of West Richland, Washington · 13755 days ago · 0 km deep · 97 km away
- 1.626 km S of Echo, Oregon · 13762 days ago · 10 km deep · 68 km away
- 1.517 km NNE of West Richland, Washington · 13768 days ago · 0 km deep · 98 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10242383. Read Sun, Oct 4, 2026, 5:54 AM UTC.