Earthquake · reviewed by a seismologist
M 2.8ml
10 km N of Bear River, Wyoming
- When
- Magnitude
- M 2.8 (ml)
- Depth
- 6.1 km below the surface
- Felt
- 3 reports · strongest reported intensity II
- Nearest
- Rich County, 24 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 619 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.
How big was it?
This earthquake released about 430 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 35,000× the energy of this one
- Magna, Utah 2020 M 5.7 25,000× the energy of this one
- Around the size people start to feel M 3.0 2.2× the energy of this one
- This earthquake M 2.8 about 430 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 41.4773, -111.0257. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Rich County, UT | 24 km (15 mi) | SE of here | earthquakes near Rich County |
| Uinta County, WY | 44 km (28 mi) | WNW of here | earthquakes near Uinta County |
| Morgan County, UT | 63 km (39 mi) | NE of here | earthquakes near Morgan County |
| Cache County, UT | 66 km (41 mi) | ESE of here | earthquakes near Cache County |
| Summit County, UT | 67 km (42 mi) | N of here | earthquakes near Summit County |
| Weber County, UT | 75 km (46 mi) | ENE of here | earthquakes near Weber County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
8 earthquakes have been recorded within 50 km since this one.
- 1.7 8 km SSW of Randolph, Utah
- 2.1 8 km SSW of Randolph, Utah
- 1.6 24 km SE of Evanston, Wyoming
- 1.8 20 km ESE of Evanston, Wyoming
- 1.7 19 km NE of Bear River, Wyoming
- 1.9 22 km ESE of Evanston, Wyoming
- 2.2 20 km ESE of Evanston, Wyoming
- 2.0 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.