QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

19 km NE of Bear River, Wyoming

· 47 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rich County 35 kmUinta County 35 kmSummit County 71 kmMorgan County 76 kmCache County 78 kmLincoln County 82 kmWeber County 89 kmBear Lake County 95 kmFranklin County 109 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 1.7 (md)
Depth
47 km below the surface
Felt
no reports yet
Nearest
Rich County, 35 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 573 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 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 95× the energy of this one
  4. This earthquake M 1.7 about 10 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 41.5067, -110.8575. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rich County, UT 35 km (21 mi) ESE of here earthquakes near Rich County
Uinta County, WY 35 km (22 mi) NW of here earthquakes near Uinta County
Summit County, UT 71 km (44 mi) N of here earthquakes near Summit County
Morgan County, UT 76 km (47 mi) NE of here earthquakes near Morgan County
Cache County, UT 78 km (48 mi) ESE of here earthquakes near Cache County
Lincoln County, WY 82 km (51 mi) S of here earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 1.7 8 km SSW of Randolph, Utah
  2. 2.1 8 km SSW of Randolph, Utah
  3. 1.6 24 km SE of Evanston, Wyoming
  4. 1.8 20 km ESE of Evanston, Wyoming

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.