QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Heber City, UT

USGS: 11 km ESE of Woodland, Utah

74 km (46 mi) ESE of Salt Lake City, UT · 58 km (36 mi) NE of Provo, UT

9:06 pm MDT, Oct 31, 2019 · · 11 km deep · released about 24 lb of TNT

Every earthquake near Heber City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wasatch County 25 kmSummit County 37 kmDuchesne County 64 kmUtah County 68 kmSalt Lake County 71 kmMorgan County 72 kmUinta County 93 kmWeber County 103 kmDavis County 107 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
9:06 pm MDT on 31 October 2019 ()
Where
27 km (17 mi) ENE of Heber City, UT · earthquakes near Heber City
Magnitude
M 1.9 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Wasatch County, 25 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2527 days ago

A magnitude 1.9 earthquake was recorded 27 km (17 mi) ENE of Heber City, UT, at 9:06 pm MDT on 31 October 2019 (03:06 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

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

How big was it?

This earthquake released about 24 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 1,400 times the energy of this one.

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 40.5572, -111.1007. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Wasatch County, UT 25 km (16 mi) SSW earthquakes near Wasatch County
Summit County, UT 37 km (23 mi) NNE earthquakes near Summit County
Duchesne County, UT 64 km (40 mi) ESE earthquakes near Duchesne County
Utah County, UT 68 km (42 mi) SW earthquakes near Utah County
Salt Lake County, UT 71 km (44 mi) W earthquakes near Salt Lake County
Morgan County, UT 72 km (45 mi) NW earthquakes near Morgan County

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

Aftershocks so far

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

  1. 2.4 42 km SSE of Evanston, Wyoming
  2. 2.2 25 km SSE of Independence, Utah
  3. 1.5 24 km SSE of Independence, Utah
  4. 2.0 25 km SSE of Independence, Utah
  5. 1.8 6 km ESE of Daniel, Utah
  6. 1.7 4 km WNW of Silver Summit, Utah
  7. 2.8 6 km WNW of Independence, Utah
  8. 1.9 9 km W of Independence, Utah
  9. 1.6 7 km SSE of Wallsburg, Utah
  10. 2.3 4 km WNW of Independence, Utah
  11. 2.3 6 km SSW of Wallsburg, Utah
  12. 3.9 4 km WNW of Independence, Utah
  13. 1.6 25 km NW of Tabiona, Utah
  14. 1.6 5 km SSE of Hideout, Utah
  15. 2.1 5 km SE of Snowbird, 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.