Earthquake · reviewed by a seismologist
M 2.5ml
Earthquake near Santaquin, UT
USGS: 2 km NNW of Goshen, Utah
38 km (23 mi) SW of Provo, UT
- When
- 11:15 pm MDT on 22 September 2019 ()
- Where
- 11 km (7 mi) W of Santaquin, UT · earthquakes near Santaquin
- Magnitude
- M 2.5 (ml)
- Depth
- 6.0 km below the surface
- Felt
- 23 reports · strongest reported intensity V
- Nearest
- Utah County, 26 km NE
- Nearest mapped fault
- Utah Lake faults, 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 2488 days ago
A magnitude 2.5 earthquake was recorded 11 km (7 mi) W of Santaquin, UT, at 11:15 pm MDT on 22 September 2019 (05:15 UTC). 23 people have reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Genola, West Mountain, Payson, Mona, Elk Ridge, Benjamin.
How big was it?
This earthquake released about 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 100,000× the energy of this one
- Magna, Utah 2020 M 5.7 72,000× the energy of this one
- Around the size people start to feel M 3.0 6.5× the energy of this one
- This earthquake M 2.5 about 150 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 2 earthquakes of M5 or more within 50 km:
- 5.0 3 km WSW of Nephi, Utah · 31 km S of this epicentre
- 5.0 1 km SSW of Mount Nebo, Utah · 6 km SW 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 39.9743, -111.9132. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Utah County, UT | 26 km (16 mi) | NE | earthquakes near Utah County |
| Sanpete County, UT | 73 km (45 mi) | SSE | earthquakes near Sanpete County |
| Wasatch County, UT | 75 km (47 mi) | ENE | earthquakes near Wasatch County |
| Salt Lake County, UT | 77 km (48 mi) | N | earthquakes near Salt Lake County |
| Juab County, UT | 80 km (50 mi) | WSW | earthquakes near Juab County |
| Tooele County, UT | 117 km (72 mi) | WNW | earthquakes near Tooele County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
36 earthquakes have been recorded within 50 km since this one.
- 1.8 2 km ENE of Saratoga Springs, Utah
- 1.7 4 km SSW of Mount Nebo, Utah
- 1.6 7 km SW of Vineyard, Utah
- 1.9 10 km W of Mona, Utah
- 1.8 14 km WNW of Levan, Utah
- 1.7 11 km W of Mona, Utah
- 1.5 8 km NNE of Fountain Green, Utah
- 2.6 6 km SW of Rocky Ridge, Utah
- 1.5 5 km SW of American Fork, Utah
- 1.6 4 km N of Nephi, Utah
- 1.8 11 km WSW of Mona, Utah
- 2.1 15 km NE of Leamington, Utah
- 2.2 9 km WSW of Mona, Utah
- 2.2 24 km ESE of Woodland Hills, Utah
- 1.6 17 km WNW of Levan, 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.