QuakeIndex

explosion · reviewed by a seismologist

M 1.6ml

3 km SE of Coburg, Oregon

· -0.4 km deep · released about 7.3 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lane County 23 kmBenton County 53 kmLinn County 58 kmLincoln County 91 kmDouglas County 92 kmPolk County 93 kmMarion County 95 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 1.6 (ml)
Depth
-0.4 km below the surface
Felt
no reports yet
Nearest
Lane County, 23 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2118 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 7.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.3 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 44.1080, -123.0390. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lane County, OR 23 km (14 mi) NNW of here earthquakes near Lane County
Benton County, OR 53 km (33 mi) SE of here earthquakes near Benton County
Linn County, OR 58 km (36 mi) SW of here earthquakes near Linn County
Lincoln County, OR 91 km (57 mi) SE of here earthquakes near Lincoln County
Douglas County, OR 92 km (57 mi) N of here earthquakes near Douglas County
Polk County, OR 93 km (58 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

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

  1. 1.6 9 km SSE of Crawfordsville, Oregon
  2. 2.0 4 km N of Sweet Home, Oregon
  3. 1.6 4 km NW of Brownsville, Oregon
  4. 1.5 3 km S of Brownsville, Oregon
  5. 1.6 22 km N of Unity, Oregon
  6. 2.2 3 km NNW of Sweet Home, Oregon
  7. 1.6 2 km SSE of Sodaville, Oregon
  8. 1.6 6 km SSE of Monroe, Oregon
  9. 1.7 9 km SSW of Holley, Oregon
  10. 1.6 6 km SSE of Monroe, Oregon
  11. 1.5 7 km SSW of Cottage Grove, Oregon
  12. 1.5 13 km WNW of Cottage Grove, Oregon
  13. 1.8 12 km SSW of Holley, Oregon
  14. 1.8 18 km ENE of Unity, Oregon
  15. 2.0 19 km ENE of Unity, 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.