QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

Earthquake near Provo, UT

USGS: 2 km ESE of Independence, Utah

35 km (22 mi) E of Provo, UT

10:35 am MDT, Jun 20, 2017 · · 10.0 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Wasatch County 8 kmUtah County 41 kmSummit County 68 kmDuchesne County 68 kmSalt Lake County 72 kmCarbon County 88 kmMorgan County 93 kmSanpete County 106 kmDavis County 116 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
10:35 am MDT on 20 June 2017 ()
Where
36 km (23 mi) E of Provo, UT · earthquakes near Provo
Magnitude
M 1.5 (md)
Depth
10.0 km below the surface
Felt
no reports yet
Nearest
Wasatch County, 8 km NE
Nearest mapped fault
Strawberry fault, 2 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3391 days ago

A magnitude 1.5 earthquake was recorded 36 km (23 mi) E of Provo, UT, at 10:35 am MDT on 20 June 2017 (16:35 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Daniel, Heber City.

How big was it?

This earthquake released about 5.4 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 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 40.2920, -111.2355. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Wasatch County, UT 8 km (5 mi) NE earthquakes near Wasatch County
Utah County, UT 41 km (26 mi) WSW earthquakes near Utah County
Summit County, UT 68 km (42 mi) NNE earthquakes near Summit County
Duchesne County, UT 68 km (42 mi) E earthquakes near Duchesne County
Salt Lake County, UT 72 km (45 mi) NW earthquakes near Salt Lake County
Carbon County, UT 88 km (55 mi) SE earthquakes near Carbon County

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

Aftershocks so far

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

  1. 2.7 Utah
  2. 1.5 28 km ESE of Mapleton, Utah
  3. 2.4 28 km ESE of Mapleton, Utah
  4. 1.7 28 km ESE of Mapleton, Utah
  5. 1.9 8 km NE of Lindon, Utah
  6. 1.5 Utah
  7. 1.8 4 km SSW of Francis, Utah
  8. 1.8 5 km WSW of Woodland, Utah
  9. 1.6 5 km SW of Woodland, Utah
  10. 1.6 Utah
  11. 1.6 20 km E of Mapleton, Utah
  12. 1.9 19 km E of Mapleton, Utah
  13. 2.2 24 km ESE of Woodland Hills, Utah
  14. 1.7 Utah
  15. 1.6 15 km SE of Independence, 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.