Earthquake · reviewed by a seismologist
M 4.3ml
45 km W of Hebgen Lake Estates, Montana
Yes. A magnitude 4.3 earthquake was recorded 45 km W of Hebgen Lake Estates, Montana, at 6:14 am MDT on 13 June 2016 (12:14 UTC), 9.9 km deep. 3 people have reported feeling it to USGS.
- When
- Montana today
- every earthquake in Montana in the last 24 hours
- Magnitude
- M 4.3 (ml)
- Depth
- 9.9 km below the surface
- Felt
- 3 reports · strongest reported intensity IV
- Measured shaking
- intensity III (ShakeMap)
- USGS impact alert
- green
- Nearest
- Fremont County, 61 km SSE
- Nearest mapped fault
- Centennial fault, 15 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 1601 days ago
Earthquake alerts for West Yellowstone, MT
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.
At this magnitude and depth, people at rest would likely notice it out to about 124 km (77 mi) from the epicentre. 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 49 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.3 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 3,500× the energy of this one
- Mineral, Virginia 2011 M 5.8 150× the energy of this one
- Magna, Utah 2020 M 5.7 110× the energy of this one
- This earthquake M 4.3 about 49 tons of TNT
- Around the size people start to feel M 3.0 this one released 100× 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
The largest earthquake within 50 km (31 mi) since our catalogue begins in 2016. No other earthquake of M4 or more has been recorded this close in that time.
Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:
- 7.2 The 1959 Hebgen Lake, Montana Earthquake · 45 km E of this epicentre
- 6.1 30 km SSW of Big Sky, Montana · 39 km NNE of this epicentre
- 5.2 32 km WNW of Hebgen Lake Estates, Montana · 23 km NE of this epicentre
- 5.2 26 km WNW of Hebgen Lake Estates, Montana · 25 km ENE of this epicentre
- 5.0 31 km W of Hebgen Lake Estates, Montana · 17 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 44.7302, -111.7637. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fremont County, ID | 61 km (38 mi) | SSE | earthquakes near Fremont County |
| Madison County, MT | 67 km (42 mi) | N | earthquakes near Madison County |
| Clark County, ID | 68 km (42 mi) | SW | earthquakes near Clark County |
| Gallatin County, MT | 99 km (62 mi) | NNE | earthquakes near Gallatin County |
| Beaverhead County, MT | 100 km (62 mi) | WNW | earthquakes near Beaverhead County |
| Madison County, ID | 105 km (65 mi) | S | earthquakes near Madison County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 1.8 34 km SSE of Virginia City, Montana
- 2.2 37 km SSE of Virginia City, Montana
- 2.1 43 km NE of Spencer, Idaho
- 1.6 28 km SSE of Virginia City, Montana
- 1.7 40 km NNE of Spencer, Idaho
- 1.9 11 km SW of West Yellowstone, Montana
- 2.2 7 km SW of Hebgen Lake Estates, Montana
- 2.0 33 km N of Spencer, Idaho
- 2.4 42 km NNE of Spencer, Idaho
- 2.0 19 km W of Hebgen Lake Estates, Montana
- 1.6 41 km NNE of Spencer, Idaho
- 2.0 Idaho-Montana border region
- 1.7 6 km SW of Hebgen Lake Estates, Montana
- 2.0 29 km NNE of Spencer, Idaho
- 1.7 28 km SSE of Virginia City, Montana
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.