Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Fillmore, UT
No earthquake was likely felt in Fillmore in the 24 hours to 6:10 pm MST (01:10 UTC). The last one was M 3.5, 55 km (34 mi) W, at 1:02 am MDT on 27 September 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Fillmore
This page: a magnitude 1.6 earthquake was recorded 18 km (11 mi) northeast of Fillmore, UT, at 12:28 am MDT on 15 October 2023 (06:28 UTC), 11 km deep.
USGS: 11 km ESE of Holden, Utah
- When
- 12:28 am MDT on 15 October 2023 ()
- Where
- 18 km (11 mi) northeast of Fillmore, UT · earthquakes near Fillmore
- Magnitude
- M 1.6 (ml)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- Sevier County, 45 km SE
- Nearest mapped fault
- Maple Grove faults, 3 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 1123 days ago
Earthquake alerts for Fillmore, UT
Get a notification in this browser when USGS records an earthquake near Fillmore, UT. No account or email needed.
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 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 4 km (2 mi) from the epicentre. In Fillmore, 18 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.
Earthquakes near other towns within 30 km: Aurora, Salina, Centerfield.
How big was it?
This earthquake released about 8.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
- Around the size people start to feel M 3.0 120× the energy of this one
- This earthquake M 1.6 about 8.1 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 4.0 on 2019-02-20 — about 4,300 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.2 0 km SSW of Central Valley, Utah · 40 km S 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 39.0618, -112.1475. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Sevier County, UT | 45 km (28 mi) | SE | earthquakes near Sevier County |
| Sanpete County, UT | 60 km (37 mi) | NE | earthquakes near Sanpete County |
| Piute County, UT | 81 km (50 mi) | S | earthquakes near Piute County |
| Millard County, UT | 86 km (53 mi) | W | earthquakes near Millard County |
| Juab County, UT | 91 km (57 mi) | NW | earthquakes near Juab County |
| Beaver County, UT | 123 km (76 mi) | SW | earthquakes near Beaver County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
46 earthquakes have been recorded within 50 km since this one.
- 1.5 3 km NNE of Joseph, Utah
- 1.6 10 km WNW of Fayette, Utah
- 1.6 19 km NE of Scipio, Utah
- 1.6 10 km NNW of Aurora, Utah
- 1.9 11 km NW of Aurora, Utah
- 1.8 9 km SW of Kanosh, Utah
- 2.0 21 km NW of Meadow, Utah
- 1.8 14 km W of Kanosh, Utah
- 1.9 18 km NNW of Fayette, Utah
- 1.9 5 km ENE of Sterling, Utah
- 1.5 17 km N of Fayette, Utah
- 2.2 4 km WNW of Elsinore, Utah
- 1.6 19 km SW of Levan, Utah
- 3.0 9 km NNE of Scipio, Utah
- 1.5 9 km NNE of Scipio, Utah
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.