M1.5 earthquake 17 km SW of Westport, Oregon
A magnitude 1.5 earthquake struck 17 km SW of Westport, Oregon on Tue, Oct 26, 1976, 11:22 PM PDT (06:22 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.7 23 km N of Amboy, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1976-10-27 06:22:07 UTC
- Depth
- 10.4 km (6.4 mi), shallow
- Epicenter
- 46.014° N, 123.515° 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 0.5 km horizontally, 0.8 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- Operator assigned
- Station coverage gap
- 311°, poorly surrounded by stations
- Stations used
- 4
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 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 uw10842443. Read Tue, Sep 22, 2026, 8:59 PM UTC.