QuakeIndex

explosion · reviewed by a seismologist

M 2.7ml

13 km SW of Mitchell, Oregon

· -1.2 km deep · released about 330 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wheeler County 35 kmCrook County 36 kmJefferson County 74 kmDeschutes County 98 kmGrant County 100 kmGilliam County 101 kmWasco County 104 kmSherman County 108 kmMorrow 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 2.7 (ml)
Depth
-1.2 km below the surface
Felt
no reports yet
Nearest
Wheeler County, 35 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3034 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 330 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 46,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 33,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.9× the energy of this one
  4. This earthquake M 2.7 about 330 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 44.4760, -120.2707. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Wheeler County, OR 35 km (22 mi) SW of here earthquakes near Wheeler County
Crook County, OR 36 km (22 mi) NNE of here earthquakes near Crook County
Jefferson County, OR 74 km (46 mi) ESE of here earthquakes near Jefferson County
Deschutes County, OR 98 km (61 mi) NE of here earthquakes near Deschutes County
Grant County, OR 100 km (62 mi) W of here earthquakes near Grant County
Gilliam County, OR 101 km (63 mi) S of here earthquakes near Gilliam County

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

Aftershocks so far

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

  1. 2.0 12 km NNW of Mitchell, Oregon
  2. 1.8 28 km SE of Prineville, Oregon
  3. 2.0 8 km W of Mitchell, Oregon
  4. 2.1 4 km ENE of Prineville, Oregon
  5. 2.3 8 km NE of Prineville, Oregon
  6. 2.0 39 km S of Mitchell, Oregon
  7. 2.2 Oregon
  8. 2.1 8 km NNE of Prineville, Oregon
  9. 2.2 3 km NE of Prineville, Oregon
  10. 1.7 4 km NNE of Prineville, Oregon
  11. 1.8 4 km E of Prineville, 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.