QuakeIndex

mining explosion · reviewed by a seismologist

M 2.8ml

4 km NW of Hibbing, Minnesota

· 0.0 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N St. Louis County 37 kmItasca County 48 kmCarlton County 98 kmAitkin County 101 kmKoochiching County 106 kmCass County 117 kmLake County 118 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 2.8 (ml)
Depth
0.0 km below the surface
Felt
no reports yet
Nearest
St. Louis County, 37 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1950 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

USGS catalogues this as mining explosion, not an earthquake.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 47.4590, -92.9776. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
St. Louis County, MN 37 km (23 mi) WSW of here earthquakes near St. Louis County
Itasca County, MN 48 km (30 mi) E of here earthquakes near Itasca County
Carlton County, MN 98 km (61 mi) NNW of here earthquakes near Carlton County
Aitkin County, MN 101 km (63 mi) NNE of here earthquakes near Aitkin County
Koochiching County, MN 106 km (66 mi) SE of here earthquakes near Koochiching County
Cass County, MN 117 km (73 mi) ENE of here earthquakes near Cass County

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

Aftershocks so far

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

  1. 2.7 4 km NW of Leonidas, Minnesota
  2. 2.6 4 km NNE of Virginia, Minnesota
  3. 2.8 3 km ENE of Virginia, Minnesota
  4. 2.5 3 km NNW of Parkville, Minnesota
  5. 2.7 2 km NNE of Kinney, Minnesota
  6. 2.9 7 km S of Buhl, Minnesota
  7. 2.9 6 km NNE of Kinney, Minnesota
  8. 2.7 4 km NNW of Buhl, Minnesota
  9. 2.6 4 km NNW of Mountain Iron, Minnesota
  10. 3.0 3 km N of Kinney, Minnesota
  11. 2.8 0 km SSE of Parkville, Minnesota
  12. 2.9 2 km N of Parkville, Minnesota
  13. 2.9 2 km S of Leonidas, Minnesota
  14. 2.9 Minnesota
  15. 2.9 9 km N of Kinney, Minnesota

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.