Earthquake · reviewed by a seismologist
M 2.0ml
Earthquake near West Yellowstone, MT
No earthquake was likely felt in West Yellowstone in the 24 hours to 9:59 am MST (16:59 UTC). The last one was M 2.8, 11 km (7 mi) NNW, at 1:21 am MDT on 8 September 2026, estimated intensity II (weak) in town. Every earthquake near West Yellowstone
This page: a magnitude 2.0 earthquake was recorded 23 km (15 mi) south of West Yellowstone, MT, at 12:38 am MDT on 23 April 2022 (06:38 UTC), 14 km deep.
USGS: 23 km S of West Yellowstone, Montana
- When
- 12:38 am MDT on 23 April 2022 ()
- Where
- 23 km (15 mi) south of West Yellowstone, MT · earthquakes near West Yellowstone
- Montana today
- every earthquake in Montana in the last 24 hours
- Magnitude
- M 2.0 (ml)
- Depth
- 14 km below the surface
- Felt
- no reports yet
- Nearest
- Fremont County, 43 km SW
- Nearest mapped fault
- Madison fault, 23 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 1663 days ago
Earthquake alerts for West Yellowstone, MT
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Alerts are on for .
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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 7 km (4 mi) from the epicentre. In West Yellowstone, 23 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.
How big was it?
This earthquake released about 27 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 560,000× the energy of this one
- Magna, Utah 2020 M 5.7 390,000× the energy of this one
- Around the size people start to feel M 3.0 35× the energy of this one
- This earthquake M 2.0 about 27 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
The largest earthquake within 50 km since 2016 was M 4.4 on 2017-06-16 — about 3,800 times the energy of this one.
Before 2016, the USGS record lists 11 earthquakes of M5 or more within 50 km; the five largest:
- 7.2 The 1959 Hebgen Lake, Montana Earthquake · 39 km NNW of this epicentre
- 6.5 14 km N of Madison Junction, Wyoming · 37 km NNE of this epicentre
- 6.3 22 km SW of Mammoth, Wyoming · 43 km NNE of this epicentre
- 6.0 21 km E of West Yellowstone, Montana · 28 km NE of this epicentre
- 5.9 26 km SSE of Mammoth, Wyoming · 48 km NE 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 44.4543, -111.0595. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fremont County, ID | 43 km (27 mi) | SW | earthquakes near Fremont County |
| Teton County, WY | 68 km (42 mi) | SE | earthquakes near Teton County |
| Teton County, ID | 78 km (48 mi) | S | earthquakes near Teton County |
| Madison County, ID | 88 km (55 mi) | SSW | earthquakes near Madison County |
| Clark County, ID | 105 km (65 mi) | W | earthquakes near Clark County |
| Park County, WY | 116 km (72 mi) | E | earthquakes near Park County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 2.6 22 km SSW of Mammoth, Wyoming
- 2.1 42 km ESE of West Yellowstone, Montana
- 1.7 23 km SSW of Mammoth, Wyoming
- 2.0 23 km SSW of Mammoth, Wyoming
- 2.3 23 km SSW of Mammoth, Wyoming
- 3.0 23 km SSW of Mammoth, Wyoming
- 2.1 23 km SSW of Mammoth, Wyoming
- 2.1 23 km SSW of Mammoth, Wyoming
- 1.9 23 km SSW of Mammoth, Wyoming
- 1.6 23 km SSW of Mammoth, Wyoming
- 2.3 23 km SSW of Mammoth, Wyoming
- 2.4 23 km SSW of Mammoth, Wyoming
- 3.1 23 km SSW of Mammoth, Wyoming
- 3.1 22 km SSW of Mammoth, Wyoming
- 2.0 23 km SSW of Mammoth, 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.