QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

20 km N of Paragonah, Utah

· 5.2 km deep · released about 200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Iron County 51 kmBeaver County 52 kmPiute County 63 kmMillard County 104 kmWashington County 110 kmSevier County 112 kmGarfield County 118 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
5.2 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Iron County, 51 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1983 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

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 38.0712, -112.7622. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Iron County, UT 51 km (32 mi) ENE of here earthquakes near Iron County
Beaver County, UT 52 km (33 mi) SE of here earthquakes near Beaver County
Piute County, UT 63 km (39 mi) WSW of here earthquakes near Piute County
Millard County, UT 104 km (64 mi) SSE of here earthquakes near Millard County
Washington County, UT 110 km (69 mi) NE of here earthquakes near Washington County
Sevier County, UT 112 km (69 mi) SW of here earthquakes near Sevier County

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

Aftershocks so far

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

  1. 1.7 10 km SW of Milford, Utah
  2. 2.1 9 km SSW of Milford, Utah
  3. 3.0 9 km SW of Milford, Utah
  4. 1.5 9 km SW of Milford, Utah
  5. 1.7 Utah
  6. 2.0 9 km SW of Milford, Utah
  7. 1.9 9 km SW of Milford, Utah
  8. 1.9 9 km SSW of Milford, Utah
  9. 2.4 9 km SW of Milford, Utah
  10. 2.2 9 km SW of Milford, Utah
  11. 1.7 10 km SW of Milford, Utah
  12. 2.5 10 km SW of Milford, Utah
  13. 2.0 9 km SW of Milford, Utah
  14. 2.2 9 km WSW of Milford, Utah
  15. 3.2 10 km SW of Milford, 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 4.4 on 2020-10-03 — it released about 640 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.