M2.3 earthquake 4 km WSW of Mulino, Oregon
A magnitude 2.3 earthquake struck 4 km WSW of Mulino, Oregon on Thu, Feb 1, 1990, 10:03 PM PST (06:03 UTC), 21 km (13 mi) below the surface.
A larger quake followed: M2.8 29 km NNW of Carson, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.3 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1990-02-02 06:03:54 UTC
- Depth
- 21.4 km (13.3 mi), shallow
- Epicenter
- 45.204° N, 122.627° W
- Region
- Oregon
- 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 1.1 km horizontally, 1.6 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 135°
- Stations used
- 28
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
- 2.829 km NNW of Carson, Washington · 13389 days ago · 6 km deep · 97 km away
- 1.629 km NNW of Carson, Washington · 13389 days ago · 8 km deep · 96 km away
- 1.72 km ESE of Bridgeton, Oregon · 13368 days ago · 19 km deep · 44 km away
- 1.70 km SW of Garden Home-Whitford, Oregon · 13333 days ago · 21 km deep · 30 km away
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10252398. Read Thu, Oct 1, 2026, 5:13 PM UTC.