M1.6 earthquake 1 km E of SeaTac, Washington
A magnitude 1.6 earthquake struck 1 km E of SeaTac, Washington on Tue, Feb 22, 2000, 10:52 PM PST (06:52 UTC), 18 km (11 mi) below the surface.
A larger quake followed: M3.6 12 km NNE of Ashford, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 2000-02-23 06:52:22 UTC
- Depth
- 18.0 km (11.2 mi), shallow
- Epicenter
- 47.447° N, 122.270° 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 0.4 km horizontally, 0.5 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 55°
- Stations used
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 5 in the 30 days before it.
After
- 2.822 km WSW of Brinnon, Washington · 9674 days ago · 46 km deep · 72 km away
- 2.222 km ENE of Ashford, Washington · 9660 days ago · -1 km deep · 74 km away
- 1.721 km N of Packwood, Washington · 9659 days ago · 10 km deep · 84 km away
- 3.612 km NNE of Ashford, Washington · 9656 days ago · 7 km deep · 69 km away
Before
- 2.63 km SSW of Easton, Washington · 9723 days ago · 2 km deep · 85 km away
- 1.711 km SSE of Mineral, Washington · 9736 days ago · 18 km deep · 92 km away
- 2.06 km S of Swede Heaven, Washington · 9741 days ago · 11 km deep · 95 km away
- 1.63 km W of Black Diamond, Washington · 9742 days ago · 11 km deep · 23 km away
- 2.122 km ENE of Ashford, Washington · 9742 days ago · -1 km deep · 77 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10495583. Read Tue, Sep 29, 2026, 2:42 PM UTC.