M1.9 earthquake 32 km NNE of Marblemount, WA
A magnitude 1.9 earthquake struck 32 km NNE of Marblemount, WA on Fri, Oct 31, 2003, 6:34 AM PST (14:34 UTC), -1 km (0 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2003-10-31 14:34:17 UTC
- Depth
- -0.7 km (-0.4 mi), shallow
- Epicenter
- 48.809° N, 121.348° 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 3.1 km horizontally, 13.6 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 132°
- Stations used
- 20
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 0 in the 30 days before it.
After
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10603843. Read Sun, Oct 4, 2026, 12:56 PM UTC.