QuakeIndex

explosion · reviewed by a seismologist

M 1.5ml

13 km ENE of Cottage Grove, Oregon

· -0.5 km deep · released about 5.9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lane County 10 kmDouglas County 64 kmLinn County 78 kmBenton County 84 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 1.5 (ml)
Depth
-0.5 km below the surface
Felt
no reports yet
Nearest
Lane County, 10 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2212 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 43.8358, -122.9053. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lane County, OR 10 km (6 mi) S of here earthquakes near Lane County
Douglas County, OR 64 km (40 mi) NNE of here earthquakes near Douglas County
Linn County, OR 78 km (49 mi) SSW of here earthquakes near Linn County
Benton County, OR 84 km (52 mi) SSE of here earthquakes near Benton County
Coos County, OR 120 km (75 mi) NE of here earthquakes near Coos County
Lincoln County, OR 120 km (75 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

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

  1. 0.4 24 km ENE of Unity, Oregon
  2. 1.8 1 km ESE of Springfield, Oregon
  3. 1.6 9 km SSW of Cottage Grove, Oregon
  4. 1.7 14 km NE of Springfield, Oregon
  5. 1.6 9 km SSE of Crawfordsville, Oregon
  6. 1.6 22 km N of Unity, Oregon
  7. 1.7 2 km SW of Drain, Oregon
  8. 1.7 1 km S of Drain, Oregon
  9. 2.0 3 km SW of Drain, Oregon
  10. 1.7 13 km S of Culp Creek, Oregon
  11. 1.7 9 km SSW of Holley, Oregon
  12. 1.5 7 km SSW of Cottage Grove, Oregon
  13. 1.6 2 km SW of Drain, Oregon
  14. 1.5 13 km WNW of Cottage Grove, Oregon
  15. 1.8 12 km SSW of Holley, 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

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