M1.9 earthquake 14 km S of Cascadia, Oregon
A magnitude 1.9 earthquake struck 14 km S of Cascadia, Oregon on Tue, Jul 7, 1981, 3:04 PM PDT (22:04 UTC), 3 km (2 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (md), micro
- Local time
- UTC
- 1981-07-07 22:04:50 UTC
- Depth
- 3.2 km (2.0 mi), shallow
- Epicenter
- 44.269° N, 122.507° 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 0.8 km horizontally, 1.2 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 163°
- Stations used
- 5
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 1 in the 30 days before it.
After
- 1.820 km SE of Oakridge, Oregon · 16500 days ago · 3 km deep · 72 km away
- 1.55 km SW of Detroit, Oregon · 16463 days ago · 1 km deep · 53 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10114328. Read Wed, Sep 23, 2026, 3:36 PM UTC.