M1.6 earthquake 5 km ENE of Molalla, Oregon
A magnitude 1.6 earthquake struck 5 km ENE of Molalla, Oregon on Fri, Apr 20, 2001, 11:00 PM PDT (06:00 UTC), 3 km (2 mi) below the surface.
A larger quake followed: M2.9 17 km N of Willamina, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2001-04-21 06:00:40 UTC
- Depth
- 2.6 km (1.6 mi), shallow
- Epicenter
- 45.165° N, 122.518° 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, 3.2 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 211°, poorly surrounded by stations
- Stations used
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 2.917 km N of Willamina, Oregon · 9281 days ago · 51 km deep · 78 km away
- 2.32 km NNW of Lafayette, Oregon · 9254 days ago · 31 km deep · 49 km away
- 1.92 km N of Molalla, Oregon · 9250 days ago · 25 km deep · 4 km away
- 1.92 km WNW of Metzger, Oregon · 9239 days ago · 25 km deep · 38 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10530323. Read Sat, Oct 3, 2026, 7:03 AM UTC.