M2.2 earthquake 5 km SW of Rockport, Washington
A magnitude 2.2 earthquake struck 5 km SW of Rockport, Washington on Sun, Mar 21, 2004, 12:34 AM PST (08:34 UTC), -1 km (0 mi) below the surface.
A larger quake followed: M2.5 5 km SW of Sultan, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.2 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2004-03-21 08:34:26 UTC
- Depth
- -0.6 km (-0.4 mi), shallow
- Epicenter
- 48.453° N, 121.657° 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 0.1 km horizontally, 0.3 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 119°
- Stations used
- 19
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 7 in the 30 days before it.
After
- 1.847 km SE of Hope, Canada · 8230 days ago · -1 km deep · 77 km away
- 1.545 km NE of Marblemount, Washington · 8221 days ago · 3 km deep · 61 km away
- 1.63 km SW of Lake Marcel-Stillwater, Washington · 8219 days ago · 2 km deep · 90 km away
- 2.15 km SW of Woodway, Washington · 8217 days ago · 26 km deep · 96 km away
- 1.61 km SSW of Ames Lake, Washington · 8203 days ago · 4 km deep · 95 km away
- 2.55 km SW of Sultan, Washington · 8196 days ago · 17 km deep · 72 km away
- 1.94 km ESE of Lake Marcel-Stillwater, Washington · 8192 days ago · 13 km deep · 88 km away
Before
- 2.10 km NW of Big Lake, Washington · 8235 days ago · 0 km deep · 44 km away
- 3.83 km SW of Clear Lake, Washington · 8235 days ago · 0 km deep · 45 km away · felt by 232
- 2.52 km WSW of Orcas, Washington · 8236 days ago · 50 km deep · 98 km away
- 1.63 km SE of Oso, Washington · 8239 days ago · 13 km deep · 29 km away
- 1.75 km SW of Aldergrove, Canada · 8250 days ago · 19 km deep · 90 km away
- 1.57 km W of Aldergrove, Canada · 8252 days ago · 21 km deep · 94 km away
- 1.63 km E of La Conner, Washington · 8259 days ago · 0 km deep · 59 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10602338. Read Sat, Oct 3, 2026, 1:45 PM UTC.