QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Ogden, UT

No earthquake was likely felt in Ogden in the 24 hours to 9:11 pm MST (04:11 UTC). The last one was M 3.5, 56 km (35 mi) S, at 6:32 pm MST on 13 February 2026, estimated intensity II (weak) in town; 4,122 felt reports to USGS. Every earthquake near Ogden

This page: a magnitude 1.7 earthquake was recorded 36 km (23 mi) northwest of Ogden, UT, at 7:11 pm MST on 8 March 2018 (02:11 UTC), less than 1 km deep.

USGS: 17 km SW of Corinne, Utah

81 km (50 mi) NNW of Salt Lake City, UT · 36 km (23 mi) NW of Ogden, UT

7:11 pm MST, Mar 8, 2018 · · -3.1 km deep · released about 11 lb of TNT

Every earthquake near Ogden Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Weber County 40 kmDavis County 47 kmCache County 54 kmBox Elder County 67 kmMorgan County 71 kmOneida County 83 kmFranklin County 88 kmRich County 89 kmSalt Lake County 93 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
7:11 pm MST on 8 March 2018 ()
Where
36 km (23 mi) northwest of Ogden, UT · earthquakes near Ogden
Magnitude
M 1.7 (ml)
Depth
-3.1 km below the surface
Felt
no reports yet
Nearest
Weber County, 40 km ESE
Nearest mapped fault
Wasatch fault, 21 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 3171 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 12 km (7 mi) from the epicentre. In Ogden, 36 km away, the estimate is intensity I (not felt). 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: Perry, Willard, South Willard, Brigham City, Plain City, Honeyville.

How big was it?

This earthquake released about 11 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 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× the energy of this one
  4. This earthquake M 1.7 about 11 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 5 earthquakes of M5 or more within 50 km:

  1. 6.6 The 1934 Hansel Valley, Utah Earthquake · 48 km WNW of this epicentre
  2. 5.9 35 km SSW of Howell, Utah · 34 km WNW of this epicentre
  3. 5.2 27 km SW of Thatcher, Utah · 19 km WNW of this epicentre
  4. 5.1 27 km SW of Thatcher, Utah · 19 km WNW of this epicentre
  5. 5.1 27 km SW of Thatcher, Utah · 19 km WNW 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 41.4562, -112.2812. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Weber County, UT 40 km (25 mi) ESE earthquakes near Weber County
Davis County, UT 47 km (29 mi) S earthquakes near Davis County
Cache County, UT 54 km (34 mi) NE earthquakes near Cache County
Box Elder County, UT 67 km (42 mi) WNW earthquakes near Box Elder County
Morgan County, UT 71 km (44 mi) SE earthquakes near Morgan County
Oneida County, ID 83 km (52 mi) NNW earthquakes near Oneida County

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

Aftershocks so far

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

  1. 1.9 19 km SSW of Thatcher, Utah
  2. 1.5 20 km WSW of Corinne, Utah
  3. 1.6 20 km WSW of Corinne, Utah
  4. 2.6 20 km WSW of Corinne, Utah
  5. 2.1 10 km WNW of Howell, Utah
  6. 1.6 19 km WSW of Corinne, Utah
  7. 1.6 9 km S of Avon, Utah
  8. 2.2 7 km ENE of Howell, Utah
  9. 1.6 18 km WSW of Corinne, Utah
  10. 1.7 18 km WSW of Corinne, Utah
  11. 3.0 18 km WSW of Corinne, Utah
  12. 3.0 17 km WSW of Corinne, Utah
  13. 1.7 18 km WSW of Corinne, Utah
  14. 1.8 13 km WSW of Thatcher, Utah
  15. 1.6 20 km WSW of Corinne, 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.