QuakeIndex

explosion · reviewed by a seismologist

M 2.1ml

1 km ENE of Medford, Oregon

· -1.1 km deep · released about 51 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jackson County 17 kmJosephine County 59 kmSiskiyou County 87 kmKlamath County 107 kmDouglas County 109 kmCurry County 112 kmDel Norte County 113 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
-1.1 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Jackson County, 17 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1513 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 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 42.3323, -122.8553. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jackson County, OR 17 km (11 mi) WSW of here earthquakes near Jackson County
Josephine County, OR 59 km (37 mi) E of here earthquakes near Josephine County
Siskiyou County, CA 87 km (54 mi) NNW of here earthquakes near Siskiyou County
Klamath County, OR 107 km (66 mi) WSW of here earthquakes near Klamath County
Douglas County, OR 109 km (68 mi) SSE of here earthquakes near Douglas County
Curry County, OR 112 km (70 mi) E of here earthquakes near Curry County

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

Aftershocks so far

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

  1. 2.1 5 km E of Medford, Oregon
  2. 1.6 Oregon
  3. 1.5 3 km WNW of Butte Falls, Oregon
  4. 1.9 3 km NW of Butte Falls, Oregon
  5. 1.9 7 km SSE of White City, Oregon
  6. 1.7 5 km E of Medford, Oregon
  7. 1.7 3 km SE of Eagle Point, Oregon
  8. 1.6 13 km SW of Ashland, Oregon
  9. 1.8 2 km SW of White City, Oregon
  10. 1.9 5 km SSE of Eagle Point, Oregon
  11. 1.9 6 km SSW of Shady Cove, Oregon
  12. 1.9 3 km ESE of New Hope, Oregon
  13. 2.0 3 km SE of Eagle Point, Oregon
  14. 1.9 6 km SSW of Shady Cove, Oregon
  15. 1.9 4 km SSW of Jacksonville, 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.