QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

15 km ENE of Springfield, Oregon

· 10 km deep · released about 51 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lane County 18 kmLinn County 50 kmBenton County 65 kmDouglas County 93 kmMarion County 93 kmPolk County 101 kmLincoln County 106 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 2.1 (ml)
Depth
10 km below the surface
Felt
12 reports · strongest reported intensity IV
Nearest
Lane County, 18 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3543 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 12 people have reported feeling it to USGS.

How big was it?

This earthquake released about 51 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 210,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 51 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 44.0867, -122.8313. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lane County, OR 18 km (11 mi) NNE of here earthquakes near Lane County
Linn County, OR 50 km (31 mi) SSW of here earthquakes near Linn County
Benton County, OR 65 km (41 mi) SE of here earthquakes near Benton County
Douglas County, OR 93 km (58 mi) NNE of here earthquakes near Douglas County
Marion County, OR 93 km (58 mi) SSW of here earthquakes near Marion County
Polk County, OR 101 km (63 mi) SSE of here earthquakes near Polk County

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

Aftershocks so far

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

  1. 1.9 6 km S of Monroe, Oregon
  2. 1.6 4 km NNW of Waterloo, Oregon
  3. 2.1 6 km WNW of Junction City, Oregon
  4. 1.7 4 km N of Sweet Home, Oregon
  5. 1.5 13 km ENE of Cottage Grove, Oregon
  6. 1.7 1 km NNW of Sweet Home, Oregon
  7. 1.7 15 km WNW of Cottage Grove, Oregon
  8. 1.6 8 km SSW of Cottage Grove, Oregon
  9. 1.5 2 km NW of Cascadia, Oregon
  10. 1.9 9 km SW of Cottage Grove, Oregon
  11. 1.8 5 km SE of Creswell, Oregon
  12. 2.2 Oregon
  13. 1.6 6 km SW of Culp Creek, Oregon
  14. 1.6 0 km WNW of Sweet Home, Oregon
  15. 1.8 5 km N of Springfield, 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.