Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Monroe, UT
No earthquake was likely felt in Monroe in the 24 hours to 4:35 am MST (11:35 UTC). The last one was M 3.3, 41 km (25 mi) SSW, at 10:44 pm MDT on 30 October 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Monroe
This page: a magnitude 1.6 earthquake was recorded 47 km (29 mi) south of Monroe, UT, at 4:59 am MDT on 12 May 2023 (10:59 UTC), 7.0 km deep.
USGS: 11 km E of Kingston, Utah
- When
- 4:59 am MDT on 12 May 2023 ()
- Where
- 47 km (29 mi) south of Monroe, UT · earthquakes near Monroe
- Magnitude
- M 1.6 (ml)
- Depth
- 7.0 km below the surface
- Felt
- no reports yet
- Nearest
- Piute County, 15 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1280 days ago
Earthquake alerts for Monroe, UT
Get a notification in this browser when USGS records an earthquake near Monroe, 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 9 km (6 mi) from the epicentre. In Monroe, 47 km away, the estimate is intensity I (not felt). 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 8.7 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 1,700,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
- Around the size people start to feel M 3.0 110× the energy of this one
- This earthquake M 1.6 about 8.7 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 2020-10-03 — about 15,000 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 6.6 Near Marysvale, Utah · 44 km NW of this epicentre
- 5.0 10 km NE of Marysvale, Utah · 34 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 38.2133, -112.0578. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Piute County, UT | 15 km (9 mi) | NNW | earthquakes near Piute County |
| Sevier County, UT | 63 km (39 mi) | NNE | earthquakes near Sevier County |
| Garfield County, UT | 68 km (42 mi) | SE | earthquakes near Garfield County |
| Wayne County, UT | 93 km (58 mi) | E | earthquakes near Wayne County |
| Beaver County, UT | 104 km (65 mi) | W | earthquakes near Beaver County |
| Kane County, UT | 106 km (66 mi) | SSE | earthquakes near Kane County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
50 earthquakes have been recorded within 50 km since this one.
- 2.2 14 km SE of Beaver, Utah
- 2.5 20 km SSW of Antimony, Utah
- 1.8 18 km SSW of Antimony, Utah
- 1.6 21 km SSE of Beaver, Utah
- 1.8 0 km W of Circleville, Utah
- 1.7 2 km WSW of Marysvale, Utah
- 1.8 5 km SE of Joseph, Utah
- 2.5 9 km S of Marysvale, Utah
- 1.6 17 km W of Marysvale, Utah
- 1.7 12 km SSE of Beaver, Utah
- 2.0 7 km NW of Junction, Utah
- 1.6 9 km ESE of Marysvale, Utah
- 1.7 2 km ENE of Marysvale, Utah
- 2.2 4 km NNW of Circleville, Utah
- 1.6 7 km NW of Junction, 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.