QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

8 km NNW of Summit Park, Utah

· 12 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Salt Lake County 27 kmMorgan County 32 kmDavis County 52 kmWeber County 54 kmSummit County 59 kmWasatch County 68 kmUtah County 77 kmRich County 97 kmCache County 102 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
Magnitude
M 2.5 (ml)
Depth
12 km below the surface
Felt
14 reports · strongest reported intensity III
Nearest
Salt Lake County, 27 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1044 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 14 people have reported feeling it to USGS.

How big was it?

This earthquake released about 180 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.

  1. Mineral, Virginia 2011 M 5.8 86,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 61,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.4× the energy of this one
  4. This earthquake M 2.5 about 180 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 40.8150, -111.6643. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Salt Lake County, UT 27 km (17 mi) NE of here earthquakes near Salt Lake County
Morgan County, UT 32 km (20 mi) SSW of here earthquakes near Morgan County
Davis County, UT 52 km (32 mi) ESE of here earthquakes near Davis County
Weber County, UT 54 km (33 mi) SSE of here earthquakes near Weber County
Summit County, UT 59 km (37 mi) W of here earthquakes near Summit County
Wasatch County, UT 68 km (42 mi) NW of here earthquakes near Wasatch County

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

Aftershocks so far

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

  1. 2.2 5 km ENE of Magna, Utah
  2. 2.1 5 km NW of Summit Park, Utah
  3. 1.5 10 km ENE of Mountain Green, Utah
  4. 1.7 5 km NE of Magna, Utah
  5. 1.7 5 km ENE of Magna, Utah
  6. 1.9 6 km WNW of Lehi, Utah
  7. 2.2 5 km WNW of Lehi, Utah
  8. 1.6 18 km N of Henefer, Utah
  9. 2.0 4 km NNW of West Valley City, Utah
  10. 1.7 2 km ESE of Echo, Utah
  11. 3.5 4 km NNW of West Valley City, Utah
  12. 1.7 6 km WNW of Lehi, Utah
  13. 1.7 6 km WNW of Lehi, Utah
  14. 1.6 5 km NE of Magna, Utah
  15. 1.8 6 km ESE of Daniel, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.7 on 2020-03-18 — it released about 61,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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