QuakeIndex

quarry blast · reviewed by a seismologist

M 1.6ml

Earthquake near Vineyard, UT

No earthquake was likely felt in Vineyard in the 24 hours to 5:14 am MST (12:14 UTC). The last one was M 2.9, 20 km (12 mi) NW, at 5:55 pm MDT on 7 August 2026, estimated intensity II (weak) in town; 569 felt reports to USGS. Every earthquake near Vineyard

No: USGS classifies this as a quarry blast, not an earthquake. A magnitude 1.6 quarry blast was recorded 12 km (7 mi) west-southwest of Vineyard, UT, at 5:37 pm MST on 20 February 2019 (00:37 UTC), less than 1 km deep.

USGS: 11 km WSW of Vineyard, Utah

19 km (12 mi) W of Provo, UT · 12 km (7 mi) SSE of Saratoga Springs, UT

5:37 pm MST, Feb 20, 2019 · · -2.0 km deep · released about 7.1 lb of TNT

10 km30 km60 km120 km N Utah County 22 kmSalt Lake County 47 kmWasatch County 61 kmDavis County 92 kmMorgan County 97 kmJuab County 98 kmSanpete County 100 kmSummit County 103 kmTooele County 109 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
5:37 pm MST on 20 February 2019 ()
Where
12 km (7 mi) west-southwest of Vineyard, UT · earthquakes near Vineyard
Magnitude
M 1.6 (ml)
Depth
-2.0 km below the surface
Felt
no reports yet
Nearest
Utah County, 22 km SE
Nearest mapped fault
Utah Lake faults, 1 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 2823 days ago

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 11 km (7 mi) from the epicentre. In Vineyard, 12 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: Saratoga Springs, Eagle Mountain, Orem, American Fork, Lehi, Lindon.

USGS catalogues this as quarry blast, not an earthquake.

How big was it?

This earthquake released about 7.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.1 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 one earthquake of M5 or more within 50 km:

  1. 5.0 1 km SSW of Mount Nebo, Utah · 35 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 40.2452, -111.8690. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Utah County, UT 22 km (14 mi) SE earthquakes near Utah County
Salt Lake County, UT 47 km (29 mi) N earthquakes near Salt Lake County
Wasatch County, UT 61 km (38 mi) E earthquakes near Wasatch County
Davis County, UT 92 km (57 mi) NNW earthquakes near Davis County
Morgan County, UT 97 km (60 mi) NNE earthquakes near Morgan County
Juab County, UT 98 km (61 mi) SW earthquakes near Juab County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

57 earthquakes have been recorded within 50 km since this one.

  1. 1.7 6 km SSW of Rocky Ridge, Utah
  2. 1.6 13 km W of Mona, Utah
  3. 2.1 6 km SW of Herriman, Utah
  4. 1.7 Utah
  5. 2.1 5 km SW of Bingham Canyon, Utah
  6. 2.1 3 km S of Wallsburg, Utah
  7. 2.9 2 km SSW of Wallsburg, Utah
  8. 2.3 3 km SSW of Wallsburg, Utah
  9. 2.0 4 km SSW of Mount Nebo, Utah
  10. 2.3 0 km NW of Mount Nebo, Utah
  11. 1.7 0 km NNE of Mount Nebo, Utah
  12. 2.4 9 km W of Independence, Utah
  13. 2.0 14.8 km N of Woodland Hills, UT
  14. 1.7 5 km SW of Bingham Canyon, Utah
  15. 1.9 20 km ESE of Mapleton, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.