M1.6 earthquake 33 km SSE of Morton, Washington
A magnitude 1.6 earthquake struck 33 km SSE of Morton, Washington on Mon, May 31, 2004, 6:30 PM PDT (01:30 UTC), 4 km (3 mi) below the surface.
A larger quake followed: M3.9 17 km W 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
- 1.6 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2004-06-01 01:30:34 UTC
- Depth
- 4.4 km (2.8 mi), shallow
- Epicenter
- 46.303° N, 122.042° 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 0.3 km horizontally, 2.1 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- Operator assigned
- Station coverage gap
- 66°
- Stations used
- 31
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 3 in the 30 days before it.
After
- 1.78 km E of Ashford, Washington · 8158 days ago · 3 km deep · 52 km away
- 1.94 km ENE of Tampico, Washington · 8147 days ago · -1 km deep · 98 km away
- 2.616 km W of Packwood, Washington · 8139 days ago · 2 km deep · 38 km away
- 1.66 km WNW of Parkdale, Oregon · 8139 days ago · -1 km deep · 88 km away
- 3.917 km W of Packwood, Washington · 8134 days ago · -1 km deep · 38 km away · felt by 173
- 2.316 km W of Packwood, Washington · 8133 days ago · 3 km deep · 39 km away
- 1.516 km W of Packwood, Washington · 8133 days ago · 5 km deep · 39 km away
- 1.5Washington · 8112 days ago · -1 km deep · 67 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10605143. Read Fri, Oct 2, 2026, 10:32 AM UTC.