QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Ivins, UT

USGS: 31 km W of Veyo, Utah

53 km (33 mi) NW of St. George, UT

1:25 am MDT, Jul 10, 2017 · · 6.7 km deep · released about 13 lb of TNT

Every earthquake near Ivins Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 51 kmLincoln County 78 kmIron 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
1:25 am MDT on 10 July 2017 ()
Where
40 km (25 mi) NW of Ivins, UT · earthquakes near Ivins
Magnitude
M 1.8 (ml)
Depth
6.7 km below the surface
Felt
no reports yet
Nearest
Washington County, 51 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3015 days ago

A magnitude 1.8 earthquake was recorded 40 km (25 mi) NW of Ivins, UT, at 1:25 am MDT on 10 July 2017 (07:25 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 810,000× the energy of this one
  3. Around the size people start to feel M 3.0 72× the energy of this one
  4. This earthquake M 1.8 about 13 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

The largest earthquake within 50 km since 2016 was M 4.2 on 2016-01-15 — about 5,200 times the energy of this one.

Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:

  1. 6.3 Near Pine Valley, Utah · 48 km E of this epicentre
  2. 5.9 38 km ESE of Caliente, Nevada · 11 km WNW of this epicentre
  3. 5.3 36 km SE of Caliente, Nevada · 14 km W of this epicentre
  4. 5.2 36 km SE of Caliente, Nevada · 14 km W 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 37.3808, -114.0397. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Washington County, UT 51 km (31 mi) ESE earthquakes near Washington County
Lincoln County, NV 78 km (48 mi) WNW earthquakes near Lincoln County
Iron County, UT 87 km (54 mi) NE earthquakes near Iron County
Beaver County, UT 129 km (80 mi) NNE earthquakes near Beaver County

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

Aftershocks so far

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

  1. 1.9 15 km SW of Enterprise, Utah
  2. 2.4 13 km SW of Enterprise, Utah
  3. 1.7 12 km WSW of Enterprise, Utah
  4. 2.6 13 km SW of Enterprise, Utah
  5. 1.9 13 km SW of Enterprise, Utah
  6. 1.6 41 km WSW of Veyo, Utah
  7. 1.7 14 km SW of Enterprise, Utah
  8. 3.8 14 km SW of Enterprise, Utah
  9. 2.8 14 km SW of Enterprise, Utah
  10. 2.2 13 km SW of Enterprise, Utah
  11. 1.8 14 km SW of Enterprise, Utah
  12. 2.9 13 km SW of Enterprise, Utah
  13. 2.2 20 km NNW of Mesquite, Nevada
  14. 1.7 17 km NW of Veyo, Utah
  15. 1.5 15 km SW of Enterprise, 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.