QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

7 km E of Howell, UT

Yes. A magnitude 3.1 earthquake was recorded 7 km E of Howell, UT, 43 km (27 mi) W of Logan, UT, at 7:41 am MST on 24 January 2020 (14:41 UTC), 7.2 km deep. 29 people have reported feeling it to USGS.

43 km (27 mi) W of Logan, UT · 119 km (74 mi) NNW of Salt Lake City, UT

· 7.2 km deep · released about 1,200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Oneida County 45 kmCache County 51 kmBox Elder County 61 kmFranklin County 61 kmWeber County 71 kmDavis County 85 kmRich County 95 kmBannock County 100 kmBear Lake County 101 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 3.1 (ml)
Depth
7.2 km below the surface
Felt
29 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Oneida County, 45 km NNW
Nearest mapped fault
North Promontory fault, 16 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 2405 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 40 km (25 mi) from the epicentre. 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: Tremonton 19 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 280,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 12,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 8,800× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.3× 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 41.7945, -112.3607. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Oneida County, ID 45 km (28 mi) NNW earthquakes near Oneida County
Cache County, UT 51 km (32 mi) E earthquakes near Cache County
Box Elder County, UT 61 km (38 mi) WSW earthquakes near Box Elder County
Franklin County, ID 61 km (38 mi) NE earthquakes near Franklin County
Weber County, UT 71 km (44 mi) SE earthquakes near Weber County
Davis County, UT 85 km (53 mi) S earthquakes near Davis County

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

Aftershocks so far

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

  1. 2.2 6 km SSW of Thatcher, Utah
  2. 1.5 12 km NW of Plain City, Utah
  3. 1.6 5 km ENE of Howell, Utah
  4. 1.5 6 km SSW of Thatcher, Utah
  5. 2.0 6 km SSW of Thatcher, Utah
  6. 2.9 5 km SSW of Thatcher, Utah
  7. 1.5 6 km SSW of Thatcher, Utah
  8. 2.7 Utah
  9. 1.7 18 km S of Snowville, Utah
  10. 1.8 12 km S of Snowville, Utah
  11. 2.5 7 km SE of Howell, Utah
  12. 1.6 20 km WSW of Corinne, Utah
  13. 1.9 19 km SSW of Thatcher, Utah
  14. 1.6 12 km ESE of Snowville, Utah
  15. 2.0 12 km ESE 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.