QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Mountain View, WY

No earthquake was likely felt in Mountain View in the 24 hours to 11:57 am MST (18:57 UTC). The last one was M 3.4, 51 km (32 mi) NE, at 10:33 pm MDT on 14 September 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Mountain View

This page: a magnitude 2.1 earthquake was recorded 9 km (6 mi) west-southwest of Mountain View, WY, at 1:32 am MDT on 3 October 2024 (07:32 UTC), 8.8 km deep.

USGS: 7 km NNW of Robertson, Wyoming

1:32 am MDT, Oct 3, 2024 · · 8.8 km deep · released about 41 lb of TNT

10 km30 km60 km120 km N Uinta County 10 kmSummit County 61 kmRich County 79 kmDaggett County 88 kmMorgan County 96 kmDuchesne County 107 kmLincoln County 111 kmWasatch County 118 kmWeber County 120 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
1:32 am MDT on 3 October 2024 ()
Where
9 km (6 mi) west-southwest of Mountain View, WY · earthquakes near Mountain View
Magnitude
M 2.1 (ml)
Depth
8.8 km below the surface
Felt
no reports yet
Nearest
Uinta County, 10 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 771 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 15 km (9 mi) from the epicentre. In Mountain View, 9 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Lyman.

How big was it?

This earthquake released about 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 260,000× the energy of this one
  3. Around the size people start to feel M 3.0 23× the energy of this one
  4. This earthquake M 2.1 about 41 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 41.2488, -110.4452. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Uinta County, WY 10 km (6 mi) WNW earthquakes near Uinta County
Summit County, UT 61 km (38 mi) SW earthquakes near Summit County
Rich County, UT 79 km (49 mi) WNW earthquakes near Rich County
Daggett County, UT 88 km (55 mi) ESE earthquakes near Daggett County
Morgan County, UT 96 km (60 mi) W earthquakes near Morgan County
Duchesne County, UT 107 km (66 mi) S earthquakes near Duchesne County

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

Aftershocks so far

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

  1. 1.6 24 km SE of Evanston, Wyoming
  2. 2.4 11 km NE of Lyman, Wyoming
  3. 1.6 13 km SSW of Granger, Wyoming
  4. 1.8 20 km ESE of Evanston, Wyoming
  5. 1.6 14 km SSW of Granger, Wyoming
  6. 1.7 19 km NE of Bear River, Wyoming
  7. 1.9 22 km ESE of Evanston, Wyoming
  8. 2.2 20 km ESE of Evanston, Wyoming
  9. 2.0 20 km ESE of Evanston, Wyoming
  10. 1.6 27 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.