QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

4 km S of Summit Park, Utah

· 11 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Salt Lake County 27 kmMorgan County 43 kmWasatch County 56 kmSummit County 57 kmDavis County 62 kmUtah County 65 kmWeber County 67 kmRich County 108 kmUinta County 109 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
Magnitude
M 3.3 (ml)
Depth
11 km below the surface
Felt
665 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
Nearest
Salt Lake County, 27 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2380 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 665 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.3 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.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 6,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,300× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.6× 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.

Where

Epicentre 40.7008, -111.6092. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Salt Lake County, UT 27 km (17 mi) E of here earthquakes near Salt Lake County
Morgan County, UT 43 km (27 mi) S of here earthquakes near Morgan County
Wasatch County, UT 56 km (35 mi) NW of here earthquakes near Wasatch County
Summit County, UT 57 km (36 mi) WSW of here earthquakes near Summit County
Davis County, UT 62 km (39 mi) SE of here earthquakes near Davis County
Utah County, UT 65 km (40 mi) N of here earthquakes near Utah 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. 1.6 3 km S of Bingham Canyon, Utah
  2. 1.7 5 km W of Salt Lake City, Utah
  3. 1.9 3 km SSW of Bluffdale, Utah
  4. 2.2 2 km SSW of Bluffdale, Utah
  5. 2.2 3 km SSW of Bluffdale, Utah
  6. 2.3 3 km SSW of Bluffdale, Utah
  7. 1.6 2 km SSE of Bluffdale, Utah
  8. 2.3 2 km S of Bluffdale, Utah
  9. 2.5 2 km S of Bluffdale, Utah
  10. 1.8 2 km S of Bluffdale, Utah
  11. 1.5 2 km S of Bluffdale, Utah
  12. 1.6 1 km SSE of Bluffdale, Utah
  13. 1.6 1 km SSE of Bluffdale, Utah
  14. 1.6 1 km SSE of Bluffdale, Utah
  15. 1.7 1 km SE of Bluffdale, 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.