Earthquake · reviewed by a seismologist
M 3.1ml
Earthquake near Seeley Lake, MT
No earthquake was likely felt in Seeley Lake in the 24 hours to 6:02 am MST (13:02 UTC). The last one was M 3.1, 26 km (16 mi) ESE, at 8:34 pm MDT on 4 October 2026, estimated intensity II (weak) in town; 4 felt reports to USGS. Every earthquake near Seeley Lake
This page: a magnitude 3.1 earthquake was recorded 26 km (16 mi) east-southeast of Seeley Lake, MT, at 8:34 pm MDT on 4 October 2026 (02:34 UTC), 5.0 km deep. 4 people have reported feeling it to USGS.
USGS: 5 km NW of Ovando, Montana
- When
- 8:34 pm MDT on 4 October 2026 ()
- Where
- 26 km (16 mi) east-southeast of Seeley Lake, MT · earthquakes near Seeley Lake
- Montana today
- every earthquake in Montana in the last 24 hours
- Magnitude
- M 3.1 (ml)
- Depth
- 5.0 km below the surface
- Felt
- 4 reports · strongest reported intensity IV
- Nearest
- Powell County, 31 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 32 days ago
Earthquake alerts for Seeley Lake, 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 41 km (25 mi) from the epicentre. In Seeley Lake, 26 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.
Likely felt in: Seeley Lake 26 km, intensity II · Lincoln 40 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 250,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
- Magna, Utah 2020 M 5.7 7,900× the energy of this one
- This earthquake M 3.1 about 1,300 lb of TNT
- Around the size people start to feel M 3.0 this one released 1.4× 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 since 2016 was M 5.0 on 2017-07-06 — about 710 times the energy of this one.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
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 47.0592, -113.1827. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Powell County, MT | 31 km (19 mi) | SE | earthquakes near Powell County |
| Missoula County, MT | 54 km (34 mi) | W | earthquakes near Missoula County |
| Lewis and Clark County, MT | 61 km (38 mi) | E | earthquakes near Lewis and Clark County |
| Granite County, MT | 76 km (47 mi) | SSW | earthquakes near Granite County |
| Lake County, MT | 94 km (58 mi) | NW | earthquakes near Lake County |
| Deer Lodge County, MT | 107 km (67 mi) | S | earthquakes near Deer Lodge 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.
- 1.0 22 km N of Ovando, Montana
- 2.3 22 km N of Ovando, Montana
- 1.2 22 km SW of Ovando, Montana
- 1.1 27 km ENE of Seeley Lake, Montana
- 1.2 17 km WNW of Lincoln, Montana
- 1.4 38 km NNE of Ovando, Montana
- 1.3 41 km WSW of Augusta, Montana
- 0.9 15 km SE of Condon, 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.