QuakeIndex

explosion · reviewed by a seismologist

M 1.6ml

0 km SW of Roseburg North, Oregon

· -0.3 km deep · released about 6.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Douglas County 13 kmCoos County 64 kmLane County 82 kmJosephine County 99 kmJackson County 108 kmCurry County 115 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
-0.3 km below the surface
Felt
no reports yet
Nearest
Douglas County, 13 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 568 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 6.8 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 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 43.2595, -123.3120. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Douglas County, OR 13 km (8 mi) WSW of here earthquakes near Douglas County
Coos County, OR 64 km (40 mi) E of here earthquakes near Coos County
Lane County, OR 82 km (51 mi) SSW of here earthquakes near Lane County
Josephine County, OR 99 km (62 mi) NNE of here earthquakes near Josephine County
Jackson County, OR 108 km (67 mi) NNW of here earthquakes near Jackson County
Curry County, OR 115 km (71 mi) NE of here earthquakes near Curry County

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

Aftershocks so far

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

  1. 1.1 4 km NNE of Roseburg North, Oregon
  2. 1.6 6 km W of Riddle, Oregon
  3. 1.6 5 km NW of Roseburg North, Oregon
  4. 1.5 9 km WSW of Lookingglass, Oregon
  5. 1.8 28 km E of Glasgow, Oregon
  6. 1.6 5 km SE of Dillard, Oregon
  7. 1.8 5 km NNW of Roseburg North, Oregon
  8. 1.5 8 km SW of Lookingglass, Oregon
  9. 1.6 4 km NNE of Roseburg North, Oregon
  10. 1.7 21 km E of Days Creek, Oregon
  11. 1.7 6 km NW of Roseburg North, Oregon
  12. 1.5 8 km SW of Lookingglass, Oregon
  13. 1.7 2 km SW of Drain, Oregon
  14. 1.7 30 km E of Bunker Hill, Oregon
  15. 1.7 1 km S of Drain, 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.