QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Evanston, WY

USGS: 10 km WSW of Robertson, Wyoming

2:38 am MDT, Jun 3, 2018 · · 16 km deep · released about 9.3 lb of TNT

10 km30 km60 km120 km N Uinta County 16 kmSummit County 47 kmRich County 80 kmMorgan County 88 kmDaggett County 90 kmDuchesne County 95 kmWasatch County 104 kmWeber County 113 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
2:38 am MDT on 3 June 2018 ()
Where
39 km (24 mi) ESE of Evanston, WY · earthquakes near Evanston
Magnitude
M 1.7 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Uinta County, 16 km N
Nearest mapped fault
Bear River fault, 20 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 3041 days ago

A magnitude 1.7 earthquake was recorded 39 km (24 mi) ESE of Evanston, WY, at 2:38 am MDT on 3 June 2018 (08:38 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Mountain View, Lyman.

How big was it?

This earthquake released about 9.3 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 1,600,000× 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 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 41.1423, -110.5310. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Uinta County, WY 16 km (10 mi) N earthquakes near Uinta County
Summit County, UT 47 km (29 mi) SW earthquakes near Summit County
Rich County, UT 80 km (50 mi) NW earthquakes near Rich County
Morgan County, UT 88 km (55 mi) W earthquakes near Morgan County
Daggett County, UT 90 km (56 mi) ESE earthquakes near Daggett County
Duchesne County, UT 95 km (59 mi) S earthquakes near Duchesne County

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

Aftershocks so far

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

  1. 1.6 24 km SE of Evanston, Wyoming
  2. 1.9 42 km SSE of Evanston, Wyoming
  3. 2.0 42 km SSE of Evanston, Wyoming
  4. 2.2 42 km SSE of Evanston, Wyoming
  5. 2.2 42 km SSE of Evanston, Wyoming
  6. 1.6 43 km NE of Samak, Utah
  7. 2.1 42 km ENE of Oakley, Utah
  8. 2.7 41 km ENE of Oakley, Utah
  9. 2.2 42 km ENE of Oakley, Utah
  10. 1.9 41 km SSE of Evanston, Wyoming
  11. 3.0 41 km SSE of Evanston, Wyoming
  12. 2.0 43 km NE of Samak, Utah
  13. 1.6 42 km NE of Samak, Utah
  14. 2.0 42 km ENE of Oakley, Utah
  15. 4.7 40 km S 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.