QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Heber City, UT

USGS: 24 km ENE of Samak, Utah

82 km (51 mi) E of Salt Lake City, UT

2:10 am MDT, Jun 7, 2016 · · 12 km deep · released about 14 lb of TNT

10 km30 km60 km120 km N Summit County 17 kmWasatch County 46 kmDuchesne County 65 kmMorgan County 67 kmUinta County 71 kmSalt Lake County 82 kmUtah County 90 kmWeber County 99 kmRich County 104 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
2:10 am MDT on 7 June 2016 ()
Where
45 km (28 mi) ENE of Heber City, UT · earthquakes near Heber City
Magnitude
M 1.8 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Summit County, 17 km N
Nearest mapped fault
Bear River fault, 21 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 3770 days ago

A magnitude 1.8 earthquake was recorded 45 km (28 mi) ENE of Heber City, UT, at 2:10 am MDT on 7 June 2016 (08:10 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Kamas, Oakley, Francis.

How big was it?

This earthquake released about 14 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 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 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 4.0 on 2016-05-25 — about 2,400 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.3 23 km NW of Altamont, Utah · 45 km ESE of this epicentre
  2. 5.0 21 km NW of Altamont, Utah · 49 km ESE 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 40.7175, -110.9557. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Summit County, UT 17 km (11 mi) N earthquakes near Summit County
Wasatch County, UT 46 km (29 mi) SSW earthquakes near Wasatch County
Duchesne County, UT 65 km (40 mi) SE earthquakes near Duchesne County
Morgan County, UT 67 km (41 mi) NW earthquakes near Morgan County
Uinta County, WY 71 km (44 mi) NNE earthquakes near Uinta County
Salt Lake County, UT 82 km (51 mi) W earthquakes near Salt Lake County

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

Aftershocks so far

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

  1. 1.8 6 km SSE of Hideout, Utah
  2. 1.6 27 km S of Evanston, Wyoming
  3. 2.0 24 km NW of Tabiona, Utah
  4. 1.9 25 km SW of Evanston, Wyoming
  5. 2.0 6 km E of Silver Summit, Utah
  6. 2.7 15 km E of Independence, Utah
  7. 2.7 Utah
  8. 1.5 Utah
  9. 1.8 4 km SSW of Francis, Utah
  10. 1.8 5 km WSW of Woodland, Utah
  11. 1.6 5 km SW of Woodland, Utah
  12. 1.6 Utah
  13. 1.7 0 km SSE of Silver Summit, Utah
  14. 1.5 18 km E of Independence, Utah
  15. 1.6 19 km E 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.