mining explosion · reviewed by a seismologist
M 3.2ml
Earthquake near Green River, WY
USGS: 22 km NW of James Town, Wyoming
- When
- 9:19 am MDT on 16 May 2025 ()
- Where
- 28 km (17 mi) NW of Green River, WY · earthquakes near Green River
- Magnitude
- M 3.2 (ml)
- Depth
- 0.0 km below the surface
- Felt
- no reports yet
- Nearest
- Sweetwater County, 68 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 434 days ago
A magnitude 3.2 earthquake was recorded 28 km (17 mi) NW of Green River, WY, at 9:19 am MDT on 16 May 2025 (15:19 UTC). This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
USGS catalogues this as mining explosion, not an earthquake.
How big was it?
This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 180,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
- Magna, Utah 2020 M 5.7 5,600× the energy of this one
- This earthquake M 3.2 about 1,900 lb of TNT
- Around the size people start to feel M 3.0 this one released 2× 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.
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 lists one earthquake of M5 or more within 50 km:
- 5.2 8 km SE of Little America, Wyoming · 25 km SSW of this epicentre
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 41.7089, -109.6970. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Sweetwater County, WY | 68 km (43 mi) | E | earthquakes near Sweetwater County |
| Uinta County, WY | 86 km (53 mi) | WSW | earthquakes near Uinta County |
| Daggett County, UT | 92 km (57 mi) | S | earthquakes near Daggett County |
| Lincoln County, WY | 100 km (62 mi) | NW | earthquakes near Lincoln County |
| Sublette County, WY | 119 km (74 mi) | N | earthquakes near Sublette County |
| Summit County, UT | 141 km (88 mi) | SW | earthquakes near Summit County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
26 earthquakes have been recorded within 50 km since this one.
- 2.8 2 km NNW of Little America, Wyoming
- 3.1 3 km NW of Little America, Wyoming
- 3.4 3 km NNW of Little America, Wyoming
- 3.8 22 km NE of Granger, Wyoming
- 3.0 2 km NNW of Little America, Wyoming
- 3.0 3 km NW of Little America, Wyoming
- 3.1 2 km NNW of Little America, Wyoming
- 3.3 2 km NW of Little America, Wyoming
- 3.1 2 km NNW of Little America, Wyoming
- 3.3 2 km NW of Little America, Wyoming
- 3.2 2 km NW of Little America, Wyoming
- 3.5 1 km NW of Little America, Wyoming
- 3.2 2 km WNW of Little America, Wyoming
- 3.2 2 km WNW of Little America, Wyoming
- 3.3 1 km NW of Little America, 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.