QuakeIndex

explosion · reviewed by a seismologist

M 1.5ml

9 km WSW of Phoenix, Oregon

· -1.2 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jackson County 28 kmJosephine County 56 kmSiskiyou County 79 kmDel Norte County 103 kmCurry County 109 kmKlamath County 116 kmDouglas County 118 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
-1.2 km below the surface
Felt
no reports yet
Nearest
Jackson County, 28 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 306 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 5.4 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 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 42.2363, -122.9192. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jackson County, OR 28 km (17 mi) SW of here earthquakes near Jackson County
Josephine County, OR 56 km (35 mi) ESE of here earthquakes near Josephine County
Siskiyou County, CA 79 km (49 mi) NNW of here earthquakes near Siskiyou County
Del Norte County, CA 103 km (64 mi) ENE of here earthquakes near Del Norte County
Curry County, OR 109 km (68 mi) ESE of here earthquakes near Curry County
Klamath County, OR 116 km (72 mi) WSW of here earthquakes near Klamath County

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

Aftershocks so far

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

  1. 0.9 15 km NE of Wimer, Oregon
  2. 1.9 6 km NE of Medford, Oregon
  3. 1.6 8 km WSW of Phoenix, Oregon
  4. 2.0 19 km SSW of Ashland, Oregon
  5. 1.8 7 km SSE of White City, Oregon
  6. 1.5 7 km SSE of Jacksonville, Oregon
  7. 1.6 6 km W of Central Point, Oregon
  8. 1.6 16 km NNE of Wimer, Oregon
  9. 1.6 7 km WNW of Butte Falls, 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.