QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

12 km NNW of New Harmony, Utah

· 9.1 km deep · released about 200 lb of TNT

10 km30 km60 km120 km N Washington County 37 kmIron County 37 kmBeaver 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
Magnitude
M 2.5 (ml)
Depth
9.1 km below the surface
Felt
no reports yet
Nearest
Washington County, 37 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 372 days ago

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

How big was it?

This earthquake released about 200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.5 about 200 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 37.5793, -113.3640. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washington County, UT 37 km (23 mi) NNE of here earthquakes near Washington County
Iron County, UT 37 km (23 mi) S of here earthquakes near Iron County
Beaver County, UT 87 km (54 mi) S of here earthquakes near Beaver County
Piute County, UT 137 km (85 mi) SW of here earthquakes near Piute County

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

Aftershocks so far

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

  1. 1.5 11 km S of Cedar City, Utah
  2. 2.5 11 km ENE of Kanarraville, Utah
  3. 1.9 11 km ENE of Kanarraville, Utah
  4. 2.2 11 km ENE of Kanarraville, Utah
  5. 1.6 11 km ENE of Kanarraville, Utah
  6. 1.9 12 km ENE of Kanarraville, Utah
  7. 1.6 3 km NW of Toquerville, Utah
  8. 1.9 13 km SSW of Enterprise, Utah
  9. 2.7 0 km S of Summit, Utah
  10. 2.4 7 km NNW of Leeds, Utah
  11. 1.7 11 km S of Kanarraville, Utah
  12. 1.6 27 km NNE of Beryl Junction, Utah
  13. 1.6 7 km ENE of Cedar City, Utah
  14. 1.6 5 km W of Enoch, Utah
  15. 1.6 5 km SW of Enoch, 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 4.5 on 2024-07-29 — it released about 760 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.