QuakeIndex

explosion · reviewed by a seismologist

M 2.1ml

7 km NE of Medford, Oregon

· -0.7 km deep · released about 49 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jackson County 12 kmJosephine County 62 kmSiskiyou County 91 kmKlamath County 102 kmDouglas County 105 kmCurry County 115 kmDel Norte County 119 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
-0.7 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Jackson County, 12 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1518 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 49 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 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× 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 49 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 42.3748, -122.8182. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jackson County, OR 12 km (8 mi) WSW of here earthquakes near Jackson County
Josephine County, OR 62 km (38 mi) E of here earthquakes near Josephine County
Siskiyou County, CA 91 km (56 mi) NNW of here earthquakes near Siskiyou County
Klamath County, OR 102 km (63 mi) WSW of here earthquakes near Klamath County
Douglas County, OR 105 km (65 mi) SSE of here earthquakes near Douglas County
Curry County, OR 115 km (71 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

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

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