M4.7 earthquake 154 km W of Langlois, Oregon
A magnitude 4.7 earthquake struck 154 km W of Langlois, Oregon on Fri, Apr 6, 1984, 8:25 PM PST (04:25 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.8 155 km W of Langlois, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1984-04-07 04:25:52 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 43.169° N, 126.318° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00023an. Read Tue, Sep 22, 2026, 8:42 PM UTC.