QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

19 km SSW of Thatcher, Utah

· 6.9 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Weber County 52 kmBox Elder County 57 kmDavis County 58 kmCache County 58 kmOneida County 73 kmMorgan County 84 kmFranklin County 85 kmRich County 96 kmSalt Lake County 104 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 1.9 (ml)
Depth
6.9 km below the surface
Felt
no reports yet
Nearest
Weber County, 52 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2183 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 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 580,000× the energy of this one
  3. Around the size people start to feel M 3.0 51× the energy of this one
  4. This earthquake M 1.9 about 19 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 41.5353, -112.3892. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Weber County, UT 52 km (32 mi) NW of here earthquakes near Weber County
Box Elder County, UT 57 km (35 mi) E of here earthquakes near Box Elder County
Davis County, UT 58 km (36 mi) NNW of here earthquakes near Davis County
Cache County, UT 58 km (36 mi) WSW of here earthquakes near Cache County
Oneida County, ID 73 km (45 mi) S of here earthquakes near Oneida County
Morgan County, UT 84 km (52 mi) NW of here earthquakes near Morgan County

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

Aftershocks so far

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

  1. 1.7 24 km SSW of Snowville, Utah
  2. 2.0 19 km S of Snowville, Utah
  3. 1.6 12 km NNE of Howell, Utah
  4. 1.5 6 km SW of Corinne, Utah
  5. 2.4 6 km SW of Corinne, Utah
  6. 2.0 17 km WSW of Howell, Utah
  7. 2.2 8 km SSW of Portage, Utah
  8. 2.3 34 km WSW of Howell, Utah
  9. 1.8 20 km WSW of Corinne, Utah
  10. 1.7 5 km E of Howell, Utah
  11. 1.5 5 km E of Howell, Utah
  12. 2.4 5 km E of Howell, Utah
  13. 1.7 17 km W of Portage, Utah
  14. 2.3 18 km W of Portage, Utah
  15. 1.5 5 km SSE of Snowville, 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.