M3.9 earthquake 206 km W of Langlois, Oregon
A magnitude 3.9 earthquake struck 206 km W of Langlois, Oregon on Fri, Jul 12, 1985, 5:32 AM PDT (12:32 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.7 184 km WSW of Port Orford, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb), minor
- Local time
- UTC
- 1985-07-12 12:32:14 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 43.186° N, 126.958° 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 1.5 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002gqr. Read Thu, Oct 1, 2026, 12:56 AM UTC.