Earthquake · reviewed by a seismologist
M 3.8ml
22 km NE of Granger, Wyoming
- When
- Magnitude
- M 3.8 (ml)
- Depth
- 3.8 km below the surface
- Felt
- 1 report · strongest reported intensity III
- Measured shaking
- intensity IV (ShakeMap)
- Nearest
- Sweetwater County, 78 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 13 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.
How big was it?
This earthquake released about 7.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 23,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 1,000× the energy of this one
- Magna, Utah 2020 M 5.7 730× the energy of this one
- This earthquake M 3.8 about 7.3 tons of TNT
- Around the size people start to feel M 3.0 this one released 15× more
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 41.7515, -109.8060. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Sweetwater County, WY | 78 km (48 mi) | W of here | earthquakes near Sweetwater County |
| Uinta County, WY | 81 km (51 mi) | NE of here | earthquakes near Uinta County |
| Lincoln County, WY | 90 km (56 mi) | SE of here | earthquakes near Lincoln County |
| Daggett County, UT | 99 km (62 mi) | NNW of here | earthquakes near Daggett County |
| Sublette County, WY | 113 km (70 mi) | S of here | earthquakes near Sublette County |
| Rich County, UT | 120 km (74 mi) | E of here | earthquakes near Rich County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
2 earthquakes have been recorded within 50 km since this one.
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.