Earthquake · reviewed by a seismologist
M 1.9ml
4 km ESE of Fredonia, Arizona
- When
- Magnitude
- M 1.9 (ml)
- Depth
- 18 km below the surface
- Felt
- no reports yet
- Nearest
- Kane County, 70 km ENE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 447 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
- Magna, Utah 2020 M 5.7 480,000× the energy of this one
- Around the size people start to feel M 3.0 43× the energy of this one
- This earthquake M 1.9 about 22 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.
Where
Epicentre 36.9340, -112.4740. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Kane County, UT | 70 km (43 mi) | WSW of here | earthquakes near Kane County |
| Washington County, UT | 97 km (60 mi) | ESE of here | earthquakes near Washington County |
| Iron County, UT | 131 km (81 mi) | SE of here | earthquakes near Iron County |
| Garfield County, UT | 135 km (84 mi) | SW of here | earthquakes near Garfield County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 2.4 7 km NE of Hildale, Utah
- 1.7 7 km NE of Hildale, Utah
- 1.9 7 km NE of Hildale, Utah
- 1.7 7 km NE of Hildale, Utah
- 1.9 10 km NE of Hildale, Utah
- 1.5 5 km WNW of Orderville, Utah
- 1.8 35 km WSW of Big Water, Utah
- 2.2 7 km WNW of Kanab, Utah
- 1.6 10 km NE of Hildale, Utah
- 1.7 11 km NE of Hildale, Utah
- 2.6 11 km NE of Hildale, Utah
- 1.9 7 km NE of Hildale, Utah
- 1.9 11 km SSW of Kaibab, Arizona
- 1.7 13 km E of Glendale, Utah
- 1.6 7 km NE of Hildale, 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.