QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Bluffdale, UT

No earthquake was likely felt in Bluffdale in the 24 hours to 3:40 pm MST (22:40 UTC). The last one was M 2.0, 9 km (5 mi) S, at 2:07 pm MDT on 19 September 2026, estimated intensity II (weak) in town; 11 felt reports to USGS. Every earthquake near Bluffdale

This page: a magnitude 2.3 earthquake was recorded 3 km (2 mi) south of Bluffdale, UT, at 12:05 am MDT on 15 June 2024 (06:05 UTC), 8.5 km deep. 56 people have reported feeling it to USGS.

USGS: 3 km S of Bluffdale, Utah

17 km (10 mi) SSE of West Jordan, UT · 8 km (5 mi) NW of Lehi, UT

12:05 am MDT, Jun 15, 2024 · · 8.5 km deep · released about 79 lb of TNT

10 km30 km60 km120 km N Salt Lake County 23 kmUtah County 44 kmWasatch County 67 kmDavis County 68 kmMorgan County 77 kmWeber County 90 kmSummit County 94 kmTooele County 100 kmJuab County 110 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
12:05 am MDT on 15 June 2024 ()
Where
3 km (2 mi) south of Bluffdale, UT · earthquakes near Bluffdale
Magnitude
M 2.3 (ml)
Depth
8.5 km below the surface
Felt
56 reports · strongest reported intensity III
Nearest
Salt Lake County, 23 km N
Nearest mapped fault
Wasatch fault, 10 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 281 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. In Bluffdale, 3 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: Riverton 7 km, intensity II · Draper 10 km, intensity II · Herriman 10 km, intensity II · South Jordan 12 km, intensity II · Sandy 16 km, intensity II · West Jordan 17 km, intensity II · Midvale 17 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 79 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 190,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 79 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

The largest earthquake within 50 km since 2016 was M 5.7 on 2020-03-18 — about 130,000 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.3 Near Salt Lake City, Utah · 29 km NNE of this epicentre
  2. 5.0 1 km NE of Magna, Utah · 32 km NNW 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 40.4590, -111.9412. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Salt Lake County, UT 23 km (14 mi) N earthquakes near Salt Lake County
Utah County, UT 44 km (27 mi) SSE earthquakes near Utah County
Wasatch County, UT 67 km (42 mi) ESE earthquakes near Wasatch County
Davis County, UT 68 km (42 mi) NNW earthquakes near Davis County
Morgan County, UT 77 km (48 mi) NNE earthquakes near Morgan County
Weber County, UT 90 km (56 mi) N earthquakes near Weber County

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

Aftershocks so far

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

  1. 1.1 12 km ESE of Bountiful, Utah
  2. 0.2 7 km NE of Magna, Utah
  3. 0.5 7 km NE of Magna, Utah
  4. 0.7 13 km NNW of Magna, Utah
  5. 0.5 5 km NW of Saratoga Springs, Utah
  6. 0.9 6 km NNW of Saratoga Springs, Utah
  7. 1.3 2 km SSW of Silver Summit, Utah
  8. 1.1 7 km SSW of Wallsburg, Utah
  9. 0.7 0 km ENE of Summit Park, Utah
  10. 1.3 1 km ESE of Summit Park, Utah
  11. 1.1 1 km ESE of Summit Park, Utah
  12. 2.4 1 km ENE of Summit Park, Utah
  13. 1.1 6 km NE of Magna, Utah
  14. 1.0 6 km SSW of Bingham Canyon, Utah
  15. 2.0 6 km WNW of Lehi, 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.