M1.6 earthquake 3 km WSW of Tygh Valley, Oregon
A magnitude 1.6 earthquake struck 3 km WSW of Tygh Valley, Oregon on Thu, Sep 3, 1981, 3:35 PM PDT (22:35 UTC), -1 km (-1 mi) below the surface.
A larger quake followed: M1.7 17 km N of Warm Springs, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1981-09-03 22:35:27 UTC
- Depth
- -1.4 km (-0.9 mi), shallow
- Epicenter
- 45.231° N, 121.209° 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 0.3 km horizontally, 3.7 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- Operator assigned
- Station coverage gap
- 203°, poorly surrounded by stations
- Stations used
- 7
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 1 in the 30 days before it.
After
- 1.632 km NNE of Detroit, Oregon · 16447 days ago · 8 km deep · 69 km away
- 1.58 km ENE of Government Camp, Oregon · 16423 days ago · 6 km deep · 38 km away
- 1.717 km N of Warm Springs, Oregon · 16409 days ago · 10 km deep · 35 km away
- 2.21 km NE of White Salmon, Washington · 16399 days ago · 3 km deep · 60 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10113503. Read Tue, Sep 22, 2026, 7:54 AM UTC.