M2.3 earthquake 28 km SW of White Swan, Washington
A magnitude 2.3 earthquake struck 28 km SW of White Swan, Washington on Fri, Feb 20, 1987, 10:54 PM PST (06:54 UTC), 2 km (1 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.3 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1987-02-21 06:54:01 UTC
- Depth
- 1.9 km (1.2 mi), shallow
- Epicenter
- 46.201° N, 120.996° 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, 1.1 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 59°
- Stations used
- 44
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 1.523 km SSE of Kittitas, Washington · 14458 days ago · 7 km deep · 87 km away
- 1.924 km ENE of Yacolt, Washington · 14445 days ago · 3 km deep · 91 km away
- 1.528 km SW of White Swan, Washington · 14437 days ago · -1 km deep · 1 km away
- 1.910 km NNW of Klickitat, Washington · 14437 days ago · 5 km deep · 38 km away
- 1.715 km SE of Ashford, Washington · 14435 days ago · 7 km deep · 86 km away
- 2.023 km SW of Vantage, Washington · 14418 days ago · 3 km deep · 90 km away
- 1.619 km N of Packwood, Washington · 14408 days ago · 6 km deep · 81 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10216618. Read Fri, Oct 2, 2026, 2:50 AM UTC.