QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

13 km NNE of Pine Valley, Utah

· 7.9 km deep · released about 6.2 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 27 kmIron County 47 kmBeaver County 97 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 1.5 (ml)
Depth
7.9 km below the surface
Felt
no reports yet
Nearest
Washington County, 27 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2228 days ago

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

How big was it?

This earthquake released about 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 37.5028, -113.4625. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washington County, UT 27 km (17 mi) N of here earthquakes near Washington County
Iron County, UT 47 km (29 mi) SSW of here earthquakes near Iron County
Beaver County, UT 97 km (60 mi) SSW of here earthquakes near Beaver County
Piute County, UT 149 km (93 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

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

  1. 3.1 20 km ESE of Kanarraville, Utah
  2. 2.1 21 km ESE of Kanarraville, Utah
  3. 1.5 12 km S of Cedar City, Utah
  4. 1.6 27 km NNE of Beryl Junction, Utah
  5. 2.0 27 km NNE of Beryl Junction, Utah
  6. 1.6 4 km NNE of Saint George, Utah
  7. 2.0 10 km SE of New Harmony, Utah
  8. 1.6 23 km WNW of Veyo, Utah
  9. 2.2 4 km E of New Harmony, Utah
  10. 1.7 13 km SSE of Kanarraville, Utah
  11. 1.5 7 km ESE of Kanarraville, Utah
  12. 1.8 8 km ENE of Kanarraville, Utah
  13. 2.2 6 km E of Washington, Utah
  14. 1.9 9 km S of Cedar City, Utah
  15. 2.1 18 km NW of Beryl Junction, 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 4.2 on 2016-01-15 — it released about 11,000 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.