QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Logan, UT

No earthquake was likely felt in Logan in the 24 hours to 11:20 pm MST (06:20 UTC). The last one was M 2.6, 16 km (10 mi) ESE, at 6:52 am MDT on 25 June 2026, estimated intensity II (weak) in town; 19 felt reports to USGS. Every earthquake near Logan

This page: a magnitude 1.9 earthquake was recorded 33 km (21 mi) north-northeast of Logan, UT, at 5:04 am MDT on 25 March 2024 (11:04 UTC), 3.2 km deep.

USGS: 10 km E of Franklin, Idaho

33 km (21 mi) NNE of Logan, UT · 139 km (86 mi) N of Salt Lake City, UT

5:04 am MDT, Mar 25, 2024 · · 3.2 km deep · released about 18 lb of TNT

10 km30 km60 km120 km N Franklin County 21 kmCache County 32 kmBear Lake County 42 kmRich County 56 kmOneida County 72 kmWeber County 84 kmLincoln County 86 kmCaribou County 87 kmBannock County 88 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
5:04 am MDT on 25 March 2024 ()
Where
33 km (21 mi) north-northeast of Logan, UT · earthquakes near Logan
Idaho today
every earthquake in Idaho in the last 24 hours
Magnitude
M 1.9 (ml)
Depth
3.2 km below the surface
Felt
no reports yet
Nearest
Franklin County, 21 km NNW
Nearest mapped fault
East Cache fault, 5 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 962 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 14 km (9 mi) from the epicentre. In Logan, 33 km away, the estimate is intensity II (weak). 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.

Earthquakes near other towns within 30 km: Richmond, Lewiston, Preston, Smithfield, Hyde Park, North Logan.

How big was it?

This earthquake released about 18 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 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.8 8 km W of Garden City, Utah · 18 km ESE of this epicentre
  2. 5.2 16 km ENE of North Logan, Utah · 24 km SSE of this epicentre
  3. 5.0 2 km S of Richmond, Utah · 17 km SW of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 42.0140, -111.6807. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Franklin County, ID 21 km (13 mi) NNW earthquakes near Franklin County
Cache County, UT 32 km (20 mi) S earthquakes near Cache County
Bear Lake County, ID 42 km (26 mi) NE earthquakes near Bear Lake County
Rich County, UT 56 km (35 mi) SE earthquakes near Rich County
Oneida County, ID 72 km (45 mi) WNW earthquakes near Oneida County
Weber County, UT 84 km (52 mi) S earthquakes near Weber County

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

Aftershocks so far

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

  1. 2.2 8 km W of Bennington, Idaho
  2. 2.9 9 km W of Bennington, Idaho
  3. 2.4 9 km SW of Georgetown, Idaho
  4. 3.8 8 km W of Bennington, Idaho
  5. 1.9 2 km WNW of Lewiston, Utah
  6. 1.9 17 km WNW of Paris, Idaho
  7. 2.0 8 km WSW of Bennington, Idaho
  8. 1.8 17 km WSW of Georgetown, Idaho
  9. 2.3 17 km SSE of Grace, Idaho
  10. 2.9 17 km WSW of Garden, Utah
  11. 2.3 17 km ENE of Hyde Park, Utah
  12. 2.1 13 km WSW of Georgetown, Idaho
  13. 1.9 18 km SE of Grace, Idaho
  14. 1.7 11 km NE of Franklin, Idaho
  15. 2.0 15 km SW of Georgetown, Idaho

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.