QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Helper, UT

No earthquake was likely felt in Helper in the 24 hours to 9:03 am MST (16:03 UTC). The last one was M 1.7, 7 km (5 mi) ENE, at 2:02 pm MDT on 28 October 2026, estimated intensity II (weak) in town. Every earthquake near Helper

This page: a magnitude 1.6 earthquake was recorded 4 km (2 mi) east-northeast of Helper, UT, at 7:38 pm MST on 19 December 2024 (02:38 UTC), less than 1 km deep.

USGS: 1 km NNW of Kenilworth, Utah

93 km (58 mi) SE of Provo, UT

7:38 pm MST, Dec 19, 2024 · · -2.5 km deep · released about 6.8 lb of TNT

10 km30 km60 km120 km N Carbon County 20 kmDuchesne County 73 kmSanpete County 75 kmWasatch County 77 kmEmery County 77 kmUtah County 87 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
7:38 pm MST on 19 December 2024 ()
Where
4 km (2 mi) east-northeast of Helper, UT · earthquakes near Helper
Magnitude
M 1.6 (md)
Depth
-2.5 km below the surface
Felt
no reports yet
Nearest
Carbon County, 20 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 692 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 11 km (7 mi) from the epicentre. In Helper, 4 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: Spring Glen, Carbonville, Price, Wellington.

How big was it?

This earthquake released about 6.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 since 1900 lists no earthquake of M5 or more within 50 km.

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 39.7002, -110.8145. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Carbon County, UT 20 km (12 mi) E earthquakes near Carbon County
Duchesne County, UT 73 km (46 mi) NNE earthquakes near Duchesne County
Sanpete County, UT 75 km (46 mi) WSW earthquakes near Sanpete County
Wasatch County, UT 77 km (48 mi) NNW earthquakes near Wasatch County
Emery County, UT 77 km (48 mi) S earthquakes near Emery County
Utah County, UT 87 km (54 mi) WNW earthquakes near Utah 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. 1.8 10 km NW of Helper, Utah
  2. 1.9 6 km S of Clear Creek, Utah
  3. 1.8 1 km NE of Helper, Utah
  4. 1.9 2 km NW of Kenilworth, Utah
  5. 2.2 1 km NW of Kenilworth, Utah
  6. 1.8 1 km N of Helper, Utah
  7. 1.5 1 km N of Kenilworth, Utah
  8. 1.6 11 km NW of Helper, Utah
  9. 1.6 2 km NW of Kenilworth, Utah
  10. 1.6 1 km NNW of Kenilworth, Utah
  11. 2.2 3 km NNE of Helper, Utah
  12. 1.9 2 km NW of Kenilworth, Utah
  13. 1.8 2 km NNW of Kenilworth, Utah
  14. 1.8 2 km WNW of Kenilworth, Utah
  15. 1.6 2 km NW of Kenilworth, 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.