QuakeIndex

explosion · reviewed by a seismologist

M 2.2ml

Oregon

· -0.7 km deep · released about 58 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lane County 7 kmLinn County 69 kmDouglas County 74 kmBenton County 82 kmMarion County 113 kmLincoln County 120 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 2.2 (ml)
Depth
-0.7 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Lane County, 7 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2385 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 43.9032, -122.8147. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lane County, OR 7 km (4 mi) ESE of here earthquakes near Lane County
Linn County, OR 69 km (43 mi) SSW of here earthquakes near Linn County
Douglas County, OR 74 km (46 mi) NNE of here earthquakes near Douglas County
Benton County, OR 82 km (51 mi) SE of here earthquakes near Benton County
Marion County, OR 113 km (70 mi) S of here earthquakes near Marion County
Lincoln County, OR 120 km (74 mi) SE of here earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 1.8 1 km ESE of Springfield, Oregon
  2. 1.6 9 km SSW of Cottage Grove, Oregon
  3. 1.7 14 km NE of Springfield, Oregon
  4. 1.6 9 km SSE of Crawfordsville, Oregon
  5. 1.6 22 km N of Unity, Oregon
  6. 1.7 1 km S of Drain, Oregon
  7. 1.7 13 km S of Culp Creek, Oregon
  8. 1.7 9 km SSW of Holley, Oregon
  9. 1.5 7 km SSW of Cottage Grove, Oregon
  10. 1.5 13 km WNW of Cottage Grove, Oregon
  11. 1.8 12 km SSW of Holley, Oregon
  12. 1.8 18 km ENE of Unity, Oregon
  13. 2.0 19 km ENE of Unity, Oregon
  14. 1.7 5 km E of Yoncalla, Oregon
  15. 1.6 Oregon

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.