Earthquake · reviewed by a seismologist
M 3.3ml
Earthquake near Hildale, UT
No earthquake was likely felt in Hildale in the 24 hours to 2:46 pm MST (21:46 UTC). The last one was M 2.1, 12 km (8 mi) NE, at 8:17 pm MDT on 12 October 2026, estimated intensity II (weak) in town. Every earthquake near Hildale
This page: a magnitude 3.3 earthquake was recorded 14 km (8 mi) northeast of Hildale, UT, at 12:02 pm MDT on 15 August 2024 (18:02 UTC), 9.2 km deep. 12 people have reported feeling it to USGS.
USGS: 13 km NE of Hildale, Utah
65 km (40 mi) E of St. George, UT
- When
- 12:02 pm MDT on 15 August 2024 ()
- Where
- 14 km (8 mi) northeast of Hildale, UT · earthquakes near Hildale
- Magnitude
- M 3.3 (ml)
- Depth
- 9.2 km below the surface
- Felt
- 12 reports · strongest reported intensity III
- Measured shaking
- intensity III (ShakeMap)
- Nearest
- Washington County, 60 km WNW
- Nearest mapped fault
- Sevier/Toroweap fault, 13 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 747 days ago
Earthquake alerts for Hildale, UT
Get a notification in this browser when USGS records an earthquake near Hildale, 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 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 51 km (32 mi) from the epicentre. In Hildale, 14 km away, the estimate is intensity III (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: Colorado City 15 km, intensity III · Hurricane 41 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 130,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 5,800× the energy of this one
- Magna, Utah 2020 M 5.7 4,100× the energy of this one
- This earthquake M 3.3 about 1.3 tons of TNT
- Around the size people start to feel M 3.0 this one released 2.7× 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 4.5 on 2024-07-29 — about 59 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 37.0812, -112.8478. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Washington County, UT | 60 km (37 mi) | WNW | earthquakes near Washington County |
| Kane County, UT | 94 km (58 mi) | ENE | earthquakes near Kane County |
| Iron County, UT | 101 km (63 mi) | NNW | earthquakes near Iron 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.
- 1.8 1 km NW of Toquerville, Utah
- 2.1 5 km NE of Hildale, Utah
- 1.6 6 km NE of Hildale, Utah
- 2.1 5 km NE of Hildale, Utah
- 1.7 9 km E of Springdale, Utah
- 1.7 16 km ESE of Kanab, Utah
- 1.6 12 km NE of Hildale, Utah
- 2.0 8 km SE of Fredonia, Arizona
- 1.7 9 km E of Springdale, Utah
- 1.8 7 km SW of Alton, Utah
- 2.0 9 km E of Springdale, Utah
- 2.0 1 km WNW of Toquerville, Utah
- 2.5 9 km E of Springdale, Utah
- 1.6 1 km NW of Toquerville, Utah
- 1.6 1 km NW of Toquerville, 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.