Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Millville, UT
USGS: 13 km E of Millville, Utah
17 km (11 mi) ESE of Logan, UT · 102 km (63 mi) NNE of Salt Lake City, UT
- When
- 10:42 am MDT on 23 October 2019 ()
- Where
- 14 km (8 mi) E of Millville, UT · earthquakes near Millville
- Magnitude
- M 1.8 (ml)
- Depth
- 7.3 km below the surface
- Felt
- no reports yet
- Nearest
- Cache County, 10 km NW
- Nearest mapped fault
- East Cache fault, 12 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 2536 days ago
A magnitude 1.8 earthquake was recorded 14 km (8 mi) E of Millville, UT, at 10:42 am MDT on 23 October 2019 (16:42 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Providence, Nibley, River Heights, Logan, Hyrum, North Logan.
How big was it?
This earthquake released about 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 930,000× the energy of this one
- Magna, Utah 2020 M 5.7 660,000× the energy of this one
- Around the size people start to feel M 3.0 59× the energy of this one
- This earthquake M 1.8 about 16 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
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:
- 5.8 8 km W of Garden City, Utah · 33 km NNE of this epicentre
- 5.5 26 km E of Avon, Utah · 23 km SE of this epicentre
- 5.2 16 km ENE of North Logan, Utah · 16 km NNE of this epicentre
- 5.0 2 km S of Richmond, Utah · 29 km NNW 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 41.6678, -111.6602. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Cache County, UT | 10 km (6 mi) | NW | earthquakes near Cache County |
| Rich County, UT | 35 km (22 mi) | E | earthquakes near Rich County |
| Weber County, UT | 48 km (30 mi) | SSW | earthquakes near Weber County |
| Franklin County, ID | 58 km (36 mi) | NNW | earthquakes near Franklin County |
| Morgan County, UT | 65 km (40 mi) | S | earthquakes near Morgan County |
| Bear Lake County, ID | 74 km (46 mi) | NNE | earthquakes near Bear Lake County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
57 earthquakes have been recorded within 50 km since this one.
- 1.5 6 km ENE of Wolf Creek, Utah
- 1.5 6 km SW of Corinne, Utah
- 2.4 6 km SW of Corinne, Utah
- 1.7 13 km E of North Logan, Utah
- 1.6 4 km SE of Avon, Utah
- 1.6 12 km ENE of Paradise, Utah
- 1.8 14 km ESE of Richmond, Utah
- 1.9 3 km N of Amalga, Utah
- 1.5 16 km W of Garden, Utah
- 2.2 4 km E of Huntsville, Utah
- 1.9 4 km E of Huntsville, Utah
- 1.7 12 km ESE of Millville, Utah
- 1.7 10 km WSW of Garden, Utah
- 2.3 10 km WSW of Garden, Utah
- 1.6 10 km WSW of Garden, 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.