M1.8 earthquake 11 km NNE of Selah, Washington
A magnitude 1.8 earthquake struck 11 km NNE of Selah, Washington on Sat, May 20, 2006, 3:35 PM PDT (22:35 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M2.9 17 km ENE of Packwood, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2006-05-20 22:35:31 UTC
- Depth
- 18.9 km (11.7 mi), shallow
- Epicenter
- 46.754° N, 120.487° W
- Region
- Washington
- 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 0.5 km horizontally, 0.4 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 77°
- Stations used
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.917 km ENE of Packwood, Washington · 7439 days ago · 4 km deep · 75 km away
- 1.612 km SW of Ellensburg, Washington · 7431 days ago · 6 km deep · 21 km away
- 2.04 km SE of Thorp, Washington · 7430 days ago · 20 km deep · 34 km away
- 1.713 km NNE of Prosser, Washington · 7430 days ago · 2 km deep · 80 km away
- 1.521 km N of West Richland, Washington · 7426 days ago · 4 km deep · 89 km away
- 2.12 km N of Yakima, Washington · 7422 days ago · -1 km deep · 14 km away
- 1.618 km ENE of Packwood, Washington · 7399 days ago · 4 km deep · 73 km away
- 2.29 km S of Royal City, Washington · 7392 days ago · 18 km deep · 67 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10695053. Read Sat, Oct 3, 2026, 1:14 AM UTC.