Earthquake · reviewed by a seismologist
M 1.7ml
Earthquake near Magna, UT
No earthquake was likely felt in Magna in the 24 hours to 10:28 am MST (17:28 UTC). The last one was M 2.2, 6 km (3 mi) ENE, at 8:46 am MDT on 17 June 2026, estimated intensity II (weak) in town; 28 felt reports to USGS. Every earthquake near Magna
This page: a magnitude 1.7 earthquake was recorded 5 km (3 mi) northeast of Magna, UT, at 9:14 am MDT on 16 April 2020 (15:14 UTC), 9.3 km deep. 11 people have reported feeling it to USGS.
USGS: 4 km NE of Magna, Utah
7 km (4 mi) NW of West Valley City, UT
- When
- 9:14 am MDT on 16 April 2020 ()
- Where
- 5 km (3 mi) northeast of Magna, UT · earthquakes near Magna
- Magnitude
- M 1.7 (ml)
- Depth
- 9.3 km below the surface
- Felt
- 11 reports · strongest reported intensity II
- Nearest
- Salt Lake County, 14 km SE
- Nearest mapped fault
- West Valley fault, 5 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 2318 days ago
Earthquake alerts for Magna, UT
Get a notification in this browser when USGS records an earthquake near Magna, 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 7 km (4 mi) from the epicentre. In Magna, 5 km away, the estimate is intensity II (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: Magna 5 km, intensity II · West Valley City 7 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 9.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
- Around the size people start to feel M 3.0 100× the energy of this one
- This earthquake M 1.7 about 9.3 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 5.7 on 2020-03-18 — about 1,100,000 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 5.3 Near Salt Lake City, Utah · 22 km E of this epicentre
- 5.0 1 km NE of Magna, Utah · 3 km WSW 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 40.7363, -112.0568. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Salt Lake County, UT | 14 km (8 mi) | SE | earthquakes near Salt Lake County |
| Davis County, UT | 36 km (22 mi) | NNW | earthquakes near Davis County |
| Morgan County, UT | 56 km (35 mi) | NE | earthquakes near Morgan County |
| Weber County, UT | 61 km (38 mi) | NNE | earthquakes near Weber County |
| Utah County, UT | 76 km (47 mi) | SSE | earthquakes near Utah County |
| Wasatch County, UT | 88 km (55 mi) | ESE | earthquakes near Wasatch County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 1.6 3 km NE of Magna, Utah
- 1.9 5 km ENE of Magna, Utah
- 2.3 5 km NNW of West Valley City, Utah
- 1.9 5 km NE of Magna, Utah
- 2.0 4 km ENE of Magna, Utah
- 1.9 4 km NE of Magna, Utah
- 2.0 7 km ESE of Morgan, Utah
- 1.8 4 km NE of Magna, Utah
- 1.7 4 km NNW of West Valley City, Utah
- 2.5 4 km ENE of Magna, UT
- 1.9 6 km NNE of Magna, UT
- 2.1 5 km NNE of Magna, Utah
- 1.8 4 km ENE of Magna, Utah
- 1.7 4 km E of Magna, Utah
- 1.5 4 km E of Magna, 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.