M1.9 earthquake 4 km SSW of Jacksonville, Oregon
A magnitude 1.9 earthquake struck 4 km SSW of Jacksonville, Oregon on Mon, Mar 29, 2021, 5:10 PM PDT (00:10 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M2.1 34 km NNW of Chiloquin, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (ML, local (Richter)), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2021-03-30 00:10:39 UTC
- Depth
- 5.3 km (3.3 mi), shallow
- Epicenter
- 42.276° N, 122.981° W
- Region
- Oregon
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 1.88 | ML, local (Richter) | Pacific Northwest Seismic Network | Preferred · Final · ±0.0892012894157137 · 8 stations |
| 1.8 | ML, local (Richter) | USGS National Earthquake Information Center | Reviewed · ±0.069 · 28 stations |
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 0.6 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 78°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.10km NE of Etna, CA · 1969 days ago · 14 km deep · 91 km away
- 2.134 km NNW of Chiloquin, Oregon · 1961 days ago · 2 km deep · 99 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw61721046 (also filed as us7000dzuf). Read Sun, Oct 4, 2026, 6:41 PM UTC.