M1.9 earthquake 19 km S of Grass Valley, Oregon
A magnitude 1.9 earthquake struck 19 km S of Grass Valley, Oregon on Sat, Sep 18, 1982, 9:12 PM PDT (04:12 UTC), 22 km (14 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
- 1982-09-19 04:12:48 UTC
- Depth
- 22.4 km (13.9 mi), shallow
- Epicenter
- 45.182° N, 120.817° 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 1.7 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 77°
- Stations used
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.83 km S of Parkdale, Oregon · 16072 days ago · -1 km deep · 70 km away
- 1.517 km E of Maupin, Oregon · 16071 days ago · 12 km deep · 3 km away
- 1.54 km SE of Parkdale, Oregon · 16053 days ago · 4 km deep · 67 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10145158. Read Wed, Sep 23, 2026, 5:06 PM UTC.