QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Evanston, WY

No earthquake was likely felt in Evanston in the 24 hours to 6:38 pm MST (01:38 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 1.6 earthquake was recorded 27 km (17 mi) south of Evanston, WY, at 8:00 am MST on 23 November 2024 (15:00 UTC), 24 km deep.

USGS: 27 km S of Evanston, Wyoming

88 km (55 mi) ENE of Salt Lake City, UT

8:00 am MST, Nov 23, 2024 · · 24 km deep · released about 6.4 lb of TNT

10 km30 km60 km120 km N Summit County 17 kmUinta County 43 kmMorgan County 54 kmRich County 72 kmWasatch County 79 kmWeber County 83 kmSalt Lake County 92 kmDuchesne County 92 kmCache County 104 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
8:00 am MST on 23 November 2024 ()
Where
27 km (17 mi) south of Evanston, WY · earthquakes near Evanston
Magnitude
M 1.6 (md)
Depth
24 km below the surface
Felt
no reports yet
Nearest
Summit County, 17 km S
Nearest mapped fault
Bear River fault, 8 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 717 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Evanston, 27 km away, the estimate is intensity I (not felt). 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.

How big was it?

This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 lb of TNT

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 since 1900 lists no earthquake of M5 or more within 50 km.

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 41.0258, -110.9372. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Summit County, UT 17 km (11 mi) S earthquakes near Summit County
Uinta County, WY 43 km (27 mi) NE earthquakes near Uinta County
Morgan County, UT 54 km (34 mi) W earthquakes near Morgan County
Rich County, UT 72 km (44 mi) NNW earthquakes near Rich County
Wasatch County, UT 79 km (49 mi) SSW earthquakes near Wasatch County
Weber County, UT 83 km (52 mi) WNW earthquakes near Weber County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

25 earthquakes have been recorded within 50 km since this one.

  1. 1.4 43 km SSE of Evanston, Wyoming
  2. 1.0 42 km NE of Samak, Utah
  3. 2.3 41 km SSE of Evanston, Wyoming
  4. 1.6 24 km SE of Evanston, Wyoming
  5. 1.9 42 km SSE of Evanston, Wyoming
  6. 2.0 42 km SSE of Evanston, Wyoming
  7. 2.2 42 km SSE of Evanston, Wyoming
  8. 2.2 42 km SSE of Evanston, Wyoming
  9. 1.6 43 km NE of Samak, Utah
  10. 2.5 28 km NNW of Tabiona, Utah
  11. 1.7 2 km ESE of Echo, Utah
  12. 2.1 42 km ENE of Oakley, Utah
  13. 2.7 41 km ENE of Oakley, Utah
  14. 2.2 42 km ENE of Oakley, Utah
  15. 1.9 41 km SSE of Evanston, Wyoming

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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.