QuakeIndex

Earthquake · reviewed by a seismologist

M 3.7ml

Earthquake near Wolf Creek, UT

No earthquake was likely felt in Wolf Creek in the 24 hours to 4:46 pm MST (23:46 UTC). The last one was M 2.1, 7 km (4 mi) SSE, at 11:10 am MDT on 15 May 2026, estimated intensity II (weak) in town. Every earthquake near Wolf Creek

This page: a magnitude 3.7 earthquake was recorded 16 km (10 mi) east-northeast of Wolf Creek, UT, at 6:11 pm MDT on 30 August 2023 (00:11 UTC), 12 km deep. 853 people have reported feeling it to USGS.

USGS: 15 km ENE of Wolf Creek, Utah

72 km (45 mi) NNE of Salt Lake City, UT · 32 km (20 mi) NE of Ogden, UT

6:11 pm MDT, Aug 30, 2023 · · 12 km deep · released about 4.8 tons of TNT

Every earthquake near Wolf Creek Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Weber County 23 kmMorgan County 34 kmCache County 39 kmRich County 43 kmDavis County 60 kmSummit County 81 kmSalt Lake County 83 kmFranklin County 88 kmUinta County 92 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
6:11 pm MDT on 30 August 2023 ()
Where
16 km (10 mi) east-northeast of Wolf Creek, UT · earthquakes near Wolf Creek
Magnitude
M 3.7 (ml)
Depth
12 km below the surface
Felt
853 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
Nearest
Weber County, 23 km SW
Nearest mapped fault
East Cache fault, 11 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 313 days ago

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 73 km (45 mi) from the epicentre. In Wolf Creek, 16 km away, the estimate is intensity III (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: North Ogden 27 km, intensity III · Ogden 33 km, intensity II · Brigham City 33 km, intensity II · Logan 41 km, intensity II · North Logan 44 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 4.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 35,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,100× the energy of this one
  4. This earthquake M 3.7 about 4.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 10× 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 2 earthquakes of M5 or more within 50 km:

  1. 5.5 26 km E of Avon, Utah · 18 km NE of this epicentre
  2. 5.2 16 km ENE of North Logan, Utah · 46 km N 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 41.3888, -111.6508. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Weber County, UT 23 km (14 mi) SW earthquakes near Weber County
Morgan County, UT 34 km (21 mi) S earthquakes near Morgan County
Cache County, UT 39 km (24 mi) NNW earthquakes near Cache County
Rich County, UT 43 km (27 mi) NE earthquakes near Rich County
Davis County, UT 60 km (38 mi) SW earthquakes near Davis County
Summit County, UT 81 km (50 mi) SE earthquakes near Summit County

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

Aftershocks so far

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

  1. 1.1 4 km ENE of Morgan, Utah
  2. 0.8 14 km NNW of Henefer, Utah
  3. 2.0 14 km ESE of Providence, Utah
  4. 1.0 4 km ENE of Huntsville, Utah
  5. 1.6 17 km E of North Logan, Utah
  6. 1.7 8 km SSW of Randolph, Utah
  7. 2.1 8 km SSW of Randolph, Utah
  8. 1.9 14 km ENE of Huntsville, Utah
  9. 1.6 15 km E of Providence, Utah
  10. 1.6 13 km ESE of Millville, Utah
  11. 1.9 16 km E of Providence, Utah
  12. 2.0 12 km E of Millville, Utah
  13. 2.6 12 km E of Millville, Utah
  14. 2.0 Utah
  15. 1.5 9 km ENE of Avon, 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

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