Earthquake · reviewed by a seismologist
M 3.3ml
Earthquake near Evanston, WY
No earthquake was likely felt in Evanston in the 24 hours to 11:27 pm MST (06:27 UTC). The last one was M 4.7, 40 km (25 mi) S, at 7:49 am MST on 22 January 2026, estimated intensity III (weak) in town; 4,305 felt reports to USGS. Every earthquake near Evanston
This page: a magnitude 3.3 earthquake was recorded 29 km (18 mi) west-northwest of Evanston, WY, at 9:20 am MST on 25 November 2023 (16:20 UTC), less than 1 km deep. 2 people have reported feeling it to USGS.
USGS: 23 km SW of Woodruff, Utah
82 km (51 mi) NE of Salt Lake City, UT · 57 km (36 mi) ENE of Ogden, UT
- When
- 9:20 am MST on 25 November 2023 ()
- Where
- 29 km (18 mi) west-northwest of Evanston, WY · earthquakes near Evanston
- Magnitude
- M 3.3 (ml)
- Depth
- -3.4 km below the surface
- Felt
- 2 reports · strongest reported intensity I
- Measured shaking
- intensity II (ShakeMap)
- Nearest
- Rich County, 32 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1016 days ago
Earthquake alerts for Evanston, WY
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 50 km (31 mi) from the epicentre. In Evanston, 29 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Likely felt in: Evanston 29 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 1.2 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 140,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 6,500× the energy of this one
- Magna, Utah 2020 M 5.7 4,600× the energy of this one
- This earthquake M 3.3 about 1.2 tons of TNT
- Around the size people start to feel M 3.0 this one released 2.5× more
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.5 26 km E of Avon, Utah · 24 km NW of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 41.3447, -111.2982. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Rich County, UT | 32 km (20 mi) | N | earthquakes near Rich County |
| Morgan County, UT | 37 km (23 mi) | SW | earthquakes near Morgan County |
| Weber County, UT | 49 km (30 mi) | W | earthquakes near Weber County |
| Cache County, UT | 57 km (35 mi) | NW | earthquakes near Cache County |
| Summit County, UT | 59 km (37 mi) | SSE | earthquakes near Summit County |
| Uinta County, WY | 62 km (39 mi) | E | earthquakes near Uinta County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
43 earthquakes have been recorded within 50 km since this one.
- 0.8 14 km NNW of Henefer, Utah
- 2.0 14 km ESE of Providence, Utah
- 1.0 4 km ENE of Huntsville, Utah
- 1.7 8 km SSW of Randolph, Utah
- 2.1 8 km SSW of Randolph, Utah
- 1.9 14 km ENE of Huntsville, Utah
- 1.6 15 km E of Providence, Utah
- 1.6 13 km ESE of Millville, Utah
- 1.9 16 km E of Providence, Utah
- 2.0 12 km E of Millville, Utah
- 2.6 12 km E of Millville, Utah
- 1.5 9 km ENE of Avon, Utah
- 2.1 3 km WNW of Huntsville, Utah
- 1.5 10 km ENE of Mountain Green, Utah
- 1.6 18 km N of Henefer, Utah
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.