Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Magna, UT
No earthquake was likely felt in Magna in the 24 hours to 11:04 am MST (18:04 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 1.6 earthquake was recorded 8 km (5 mi) north-northeast of Magna, UT, at 10:35 am MDT on 19 March 2020 (16:35 UTC), 9.8 km deep. 3 people have reported feeling it to USGS.
USGS: 7 km NNE of Magna, Utah
12 km (7 mi) W of Salt Lake City, UT · 11 km (7 mi) NNW of West Valley City, UT
- When
- 10:35 am MDT on 19 March 2020 ()
- Where
- 8 km (5 mi) north-northeast of Magna, UT · earthquakes near Magna
- Magnitude
- M 1.6 (ml)
- Depth
- 9.8 km below the surface
- Felt
- 3 reports · strongest reported intensity II
- Nearest
- Salt Lake County, 17 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 2416 days ago
Earthquake alerts for Magna, UT
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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 4 km (2 mi) from the epicentre. In Magna, 8 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.
Earthquakes near other towns within 30 km: West Valley City, Kearns, Salt Lake City, North Salt Lake, Taylorsville, Oquirrh.
How big was it?
This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
- Around the size people start to feel M 3.0 150× the energy of this one
- This earthquake M 1.6 about 6.4 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 1,700,000 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 · 24 km ESE of this epicentre
- 5.0 1 km NE of Magna, Utah · 6 km SSW 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 40.7762, -112.0725. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Salt Lake County, UT | 17 km (11 mi) | SE | earthquakes near Salt Lake County |
| Davis County, UT | 31 km (19 mi) | NNW | earthquakes near Davis County |
| Morgan County, UT | 54 km (34 mi) | NE | earthquakes near Morgan County |
| Weber County, UT | 57 km (36 mi) | NNE | earthquakes near Weber County |
| Utah County, UT | 81 km (50 mi) | SSE | earthquakes near Utah County |
| Wasatch County, UT | 91 km (57 mi) | ESE | earthquakes near Wasatch 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.
- 2.3 7 km W of Salt Lake City, Utah
- 1.6 5 km NNE of Magna, Utah
- 2.1 6 km ENE of Magna, Utah
- 1.7 8 km NNE of Magna, Utah
- 1.7 6 km W of Salt Lake City, Utah
- 2.1 5 km ENE of Magna, Utah
- 2.1 8 km NE of Magna, Utah
- 3.1 9 km NNE of Magna, Utah
- 2.0 8 km NNE of Magna, Utah
- 2.3 6 km NNE of Magna, Utah
- 1.5 9 km NNE of Magna, Utah
- 1.9 5 km NE of Magna, Utah
- 2.9 3 km NNE of Magna, Utah
- 1.8 5 km NE of Magna, Utah
- 1.8 6 km NNE 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.