M1.5 earthquake 21 km ESE of Molalla, Oregon
A magnitude 1.5 earthquake struck 21 km ESE of Molalla, Oregon on Fri, Sep 12, 1986, 5:53 PM PDT (00:53 UTC), -1 km (-1 mi) below the surface.
A larger quake followed: M1.7 5 km SSW of Saint Paul, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1986-09-13 00:53:03 UTC
- Depth
- -1.2 km (-0.8 mi), shallow
- Epicenter
- 45.062° N, 122.326° 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, 0.8 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 266°, poorly surrounded by stations
- Stations used
- 8
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 uw10210938. Read Tue, Sep 22, 2026, 8:58 PM UTC.