QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

14 km SW of Grantsville, Utah

· 6.8 km deep · released about 6.2 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tooele County 46 kmSalt Lake County 59 kmDavis County 67 kmUtah County 89 kmJuab County 90 kmWeber County 104 kmMorgan County 107 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 1.5 (ml)
Depth
6.8 km below the surface
Felt
no reports yet
Nearest
Tooele County, 46 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1971 days ago

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

How big was it?

This earthquake released about 6.2 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 2,500,000× 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 1.5 about 6.2 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 40.5097, -112.5873. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tooele County, UT 46 km (28 mi) E of here earthquakes near Tooele County
Salt Lake County, UT 59 km (36 mi) WSW of here earthquakes near Salt Lake County
Davis County, UT 67 km (42 mi) SSW of here earthquakes near Davis County
Utah County, UT 89 km (55 mi) WNW of here earthquakes near Utah County
Juab County, UT 90 km (56 mi) N of here earthquakes near Juab County
Weber County, UT 104 km (64 mi) SW of here earthquakes near Weber County

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

Aftershocks so far

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

  1. 1.0 6 km SSW of Bingham Canyon, Utah
  2. 1.6 5 km SSW of Bingham Canyon, Utah
  3. 2.3 3 km SW of Bingham Canyon, Utah
  4. 1.7 3 km ENE of Magna, Utah
  5. 2.0 2 km SSE of Bingham Canyon, Utah
  6. 1.6 5 km SSW of Bingham Canyon, Utah
  7. 1.9 7 km SSW of Bingham Canyon, Utah
  8. 1.8 Utah
  9. 1.7 4 km S of Bingham Canyon, Utah
  10. 2.5 3 km ENE of Magna, Utah
  11. 1.7 Utah
  12. 1.5 8 km SSW of Bingham Canyon, Utah
  13. 1.6 4 km SW of Bingham Canyon, Utah
  14. 1.7 5 km WSW of Bingham Canyon, Utah
  15. 2.0 2 km E of Magna, 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 4.2 on 2020-03-18 — it released about 8,800 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.