QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

13 km NNW of Magna, Utah

· 11 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Davis County 25 kmSalt Lake County 26 kmWeber County 56 kmMorgan County 58 kmUtah County 88 kmTooele County 89 kmWasatch County 100 kmSummit County 101 kmCache County 108 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 2.4 (ml)
Depth
11 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Davis County, 25 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2290 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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.

Where

Epicentre 40.8162, -112.1680. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Davis County, UT 25 km (15 mi) S of here earthquakes near Davis County
Salt Lake County, UT 26 km (16 mi) NW of here earthquakes near Salt Lake County
Weber County, UT 56 km (35 mi) SSW of here earthquakes near Weber County
Morgan County, UT 58 km (36 mi) WSW of here earthquakes near Morgan County
Utah County, UT 88 km (55 mi) NNW of here earthquakes near Utah County
Tooele County, UT 89 km (56 mi) ENE of here earthquakes near Tooele County

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

Aftershocks so far

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

  1. 1.5 6 km NE of Magna, Utah
  2. 1.5 3 km NE of Magna, Utah
  3. 1.6 6 km NNE of Magna, Utah
  4. 1.6 6 km NNE of Magna, Utah
  5. 1.5 6 km NNE of Magna, Utah
  6. 1.9 6 km NNE of Magna, Utah
  7. 2.4 6 km NNE of Magna, Utah
  8. 1.8 4 km ENE of Magna, Utah
  9. 1.8 5 km NE of Magna, Utah
  10. 1.7 1 km ENE of Magna, Utah
  11. 1.5 6 km SSW of Bingham Canyon, Utah
  12. 1.5 4 km NE of Magna, Utah
  13. 1.9 4 km NE of Magna, Utah
  14. 1.6 2 km E of Magna, Utah
  15. 2.3 6 km NNW of West Valley City, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.7 on 2020-03-18 — it released about 89,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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