M1.6 earthquake 54 km WNW of Granite Falls, Washington
A magnitude 1.6 earthquake struck 54 km WNW of Granite Falls, Washington on Thu, Feb 6, 2003, 6:41 PM PST (02:41 UTC), 8 km (5 mi) below the surface.
A larger quake followed: M2.6 6 km N of Waterville, 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, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2003-02-07 02:41:21 UTC
- Depth
- 8.4 km (5.2 mi), shallow
- Epicenter
- 48.127° N, 120.846° 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 1.8 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 146°
- Stations used
- 15
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 6 in the 30 days before it.
After
- 2.66 km N of Waterville, Washington · 8617 days ago · 5 km deep · 75 km away
- 1.52 km W of Lake Roesiger, Washington · 8614 days ago · 14 km deep · 85 km away
- 1.91 km E of Granite Falls, Washington · 8590 days ago · 0 km deep · 82 km away
- 1.97 km SSE of Leavenworth, Washington · 8581 days ago · 6 km deep · 68 km away
Before
- 2.18 km WSW of Chelan Falls, Washington · 8638 days ago · 3 km deep · 70 km away
- 2.58 km NE of Lake Marcel-Stillwater, Washington · 8644 days ago · 0 km deep · 85 km away
- 1.50.6 km ENE of Lyman, WA · 8654 days ago · -1 km deep · 100 km away
- 2.340 km WSW of Twisp, Washington · 8656 days ago · 5 km deep · 23 km away
- 2.52 km NNW of Fall City, Washington · 8661 days ago · 2 km deep · 99 km away
- 2.610 km WSW of Chelan Falls, Washington · 8662 days ago · 3 km deep · 66 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10575053. Read Thu, Oct 1, 2026, 3:13 PM UTC.