M1.6 earthquake 11 km E of Molalla, Oregon
A magnitude 1.6 earthquake struck 11 km E of Molalla, Oregon on Sun, Dec 18, 1983, 1:25 PM PST (21:25 UTC), 7 km (4 mi) below the surface.
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
- 1983-12-18 21:25:33 UTC
- Depth
- 7.0 km (4.3 mi), shallow
- Epicenter
- 45.166° N, 122.435° 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 2.4 km horizontally, 8.2 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- Operator assigned
- Station coverage gap
- 185°, poorly surrounded by stations
- Stations used
- 27
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10171638. Read Tue, Sep 22, 2026, 4:54 PM UTC.