QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Ogden, UT

USGS: 18 km WSW of Corinne, Utah

84 km (52 mi) NNW of Salt Lake City, UT · 40 km (25 mi) NW of Ogden, UT

8:23 pm MST, Mar 5, 2020 · · 1.8 km deep · released about 10 lb of TNT

Every earthquake near Ogden Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Weber County 43 kmDavis County 50 kmCache County 55 kmBox Elder County 65 kmMorgan County 75 kmOneida County 80 kmFranklin County 87 kmRich County 90 kmSalt Lake County 96 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
8:23 pm MST on 5 March 2020 ()
Where
40 km (25 mi) NW of Ogden, UT · earthquakes near Ogden
Magnitude
M 1.7 (ml)
Depth
1.8 km below the surface
Felt
no reports yet
Nearest
Weber County, 43 km ESE
Nearest mapped fault
Great Salt Lake fault, 23 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 2402 days ago

A magnitude 1.7 earthquake was recorded 40 km (25 mi) NW of Ogden, UT, at 8:23 pm MST on 5 March 2020 (03:23 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Perry, Willard, Brigham City, Honeyville, South Willard, Elwood.

How big was it?

This earthquake released about 10 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.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 95× the energy of this one
  4. This earthquake M 1.7 about 10 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 6 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.6 The 1934 Hansel Valley, Utah Earthquake · 45 km WNW of this epicentre
  2. 5.9 35 km SSW of Howell, Utah · 32 km W of this epicentre
  3. 5.6 Hansel Valley, Utah · 48 km NW of this epicentre
  4. 5.2 27 km SW of Thatcher, Utah · 16 km W of this epicentre
  5. 5.1 27 km SW of Thatcher, Utah · 16 km W 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 41.4803, -112.3065. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Weber County, UT 43 km (27 mi) ESE earthquakes near Weber County
Davis County, UT 50 km (31 mi) S earthquakes near Davis County
Cache County, UT 55 km (34 mi) ENE earthquakes near Cache County
Box Elder County, UT 65 km (40 mi) WNW earthquakes near Box Elder County
Morgan County, UT 75 km (46 mi) SE earthquakes near Morgan County
Oneida County, ID 80 km (50 mi) NNW earthquakes near Oneida County

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

Aftershocks so far

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

  1. 1.6 2 km WNW of West Point, Utah
  2. 2.0 17 km S of Snowville, Utah
  3. 2.3 5 km SSW of Thatcher, Utah
  4. 2.2 5 km SSW of Thatcher, Utah
  5. 2.1 5 km SSW of Thatcher, Utah
  6. 1.5 4 km SSW of Thatcher, Utah
  7. 2.6 5 km SSW of Thatcher, Utah
  8. 2.4 42 km SW of Howell, Utah
  9. 1.5 9 km NE of Wolf Creek, Utah
  10. 1.8 45 km SW of Howell, Utah
  11. 2.2 6 km SSW of Thatcher, Utah
  12. 1.5 12 km NW of Plain City, Utah
  13. 1.6 5 km ENE of Howell, Utah
  14. 1.5 6 km SSW of Thatcher, Utah
  15. 2.0 6 km SSW of Thatcher, 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.