M4.3 earthquake 28 km E of La Sal, Utah
A magnitude 4.3 earthquake struck 28 km E of La Sal, Utah on Sat, Dec 19, 2020, 7:11 PM MST (02:11 UTC), 0 km (0 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (ml), light
- Local time
- UTC
- 2020-12-20 02:11:06 UTC
- Depth
- 0.0 km (0.0 mi), shallow
- Epicenter
- 38.273° N, 108.929° W
- Region
- Colorado
- Felt reports
- 21
- Strongest shaking
- VI, strong shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VI, strong shaking
- Peak ground acceleration
- 11.4% of gravity
- Peak ground velocity
- 1.0 cm/s
- Map
- Automatic
Did you feel it?
21 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.
Estimated impact
The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.
- Alert level
- Green: little or no damage or loss of life expected
| Range | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
| Range, million USD | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 0.3 km horizontally, 0.9 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 83°
- Stations used
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 7 in the 30 days before it.
After
- 1.728 km E of La Sal, Utah · 2110 days ago · 0 km deep · 1 km away
- 1.928 km E of La Sal, Utah · 2109 days ago · 1 km deep · 1 km away
- 2.329 km E of La Sal, UT · 2096 days ago · 1 km deep · 1 km away
- 1.728 km E of La Sal, Utah · 2090 days ago · 4 km deep · 0 km away
- 2.737 km ENE of Thompson Springs, Utah · 2054 days ago · 6 km deep · 95 km away
Before
- 3.328 km E of La Sal, Utah · 2110 days ago · 1 km deep · 1 km away · felt by 5
- 1.839 km WSW of Moab, Utah · 2114 days ago · 6 km deep · 92 km away
- 1.628 km E of La Sal, Utah · 2114 days ago · 0 km deep · 0 km away
- 2.128 km E of La Sal, Utah · 2117 days ago · 1 km deep · 1 km away
- 1.824 km NE of La Sal, Utah · 2121 days ago · 0 km deep · 22 km away
- 1.628 km E of La Sal, Utah · 2121 days ago · 0 km deep · 0 km away
- 3.628 km E of La Sal, Utah · 2121 days ago · 0 km deep · 1 km away · felt by 2
Earthquakes todayColorado earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uu60422367 (also filed as us7000csk8). Read Tue, Sep 29, 2026, 11:56 PM UTC.