M4.0 earthquake 178 km WSW of Pistol River, Oregon
A magnitude 4.0 earthquake struck 178 km WSW of Pistol River, Oregon on Tue, Sep 20, 1983, 3:44 AM PDT (10:44 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.1 173 km WSW of Pistol River, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb), light
- Local time
- UTC
- 1983-09-20 10:44:55 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 41.925° N, 126.497° 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: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.1173 km WSW of Pistol River, Oregon · 15695 days ago · 10 km deep · 23 km away
- 2.7109 km WSW of Crescent City, California · 15677 days ago · 4 km deep · 92 km away
- 3.3124 km WSW of Pistol River, Oregon · 15667 days ago · 3 km deep · 65 km away
- 4.2229 km WSW of Pistol River, Oregon · 15659 days ago · 10 km deep · 52 km away
- 4.8214 km WSW of Pistol River, Oregon · 15659 days ago · 10 km deep · 37 km away
- 4.4231 km WSW of Pistol River, Oregon · 15659 days ago · 10 km deep · 53 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ygp. Read Tue, Sep 22, 2026, 10:54 AM UTC.