QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Ogden, UT

USGS: 7 km NNE of Huntsville, Utah

62 km (39 mi) NNE of Salt Lake City, UT · 23 km (14 mi) ENE of Ogden, UT

8:43 pm MDT, May 12, 2016 · · 11 km deep · released about 27 lb of TNT

10 km30 km60 km120 km N Weber County 14 kmMorgan County 28 kmCache County 47 kmDavis County 51 kmRich County 53 kmSalt Lake County 74 kmSummit County 80 kmFranklin County 96 kmUinta County 97 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
8:43 pm MDT on 12 May 2016 ()
Where
23 km (14 mi) ENE of Ogden, UT · earthquakes near Ogden
Magnitude
M 2.0 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Weber County, 14 km WSW
Nearest mapped fault
East Cache fault, 15 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 3794 days ago

A magnitude 2.0 earthquake was recorded 23 km (14 mi) ENE of Ogden, UT, at 8:43 pm MDT on 12 May 2016 (02:43 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Wolf Creek, Liberty, North Ogden, Mountain Green, Harrisville, Pleasant View.

How big was it?

This earthquake released about 27 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 560,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 390,000× the energy of this one
  3. Around the size people start to feel M 3.0 35× the energy of this one
  4. This earthquake M 2.0 about 27 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. 5.5 26 km E of Avon, Utah · 28 km NE 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 41.3152, -111.7243. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Weber County, UT 14 km (9 mi) WSW earthquakes near Weber County
Morgan County, UT 28 km (17 mi) SSE earthquakes near Morgan County
Cache County, UT 47 km (29 mi) N earthquakes near Cache County
Davis County, UT 51 km (31 mi) SW earthquakes near Davis County
Rich County, UT 53 km (33 mi) NE earthquakes near Rich County
Salt Lake County, UT 74 km (46 mi) SSW earthquakes near Salt Lake County

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

Aftershocks so far

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

  1. 2.0 9 km SSW of Henefer, Utah
  2. 1.9 13 km SW of Echo, Utah
  3. 1.7 17 km E of Providence, Utah
  4. 1.5 8 km ENE of Paradise, Utah
  5. 2.2 3 km E of Enterprise, Utah
  6. 1.8 5 km ESE of Morgan, Utah
  7. 1.6 5 km ESE of Morgan, Utah
  8. 1.6 5 km ESE of Morgan, Utah
  9. 1.6 21 km N of Henefer, Utah
  10. 2.2 8 km NE of Huntsville, Utah
  11. 2.7 22 km SSW of Woodruff, Utah
  12. 1.6 10 km W of Woodruff, Utah
  13. 2.2 11 km SW of Henefer, Utah
  14. 1.5 5 km NNE of Morgan, Utah
  15. 1.6 16 km N of Summit Park, 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.