QuakeIndex

explosion · reviewed by a seismologist

M 1.7ml

12 km ENE of Terrebonne, Oregon

· -1.6 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jefferson County 31 kmDeschutes County 55 kmCrook County 58 kmWasco County 87 kmWheeler County 88 kmSherman County 116 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 1.7 (ml)
Depth
-1.6 km below the surface
Felt
no reports yet
Nearest
Jefferson County, 31 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1318 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 930,000× the energy of this one
  3. Around the size people start to feel M 3.0 83× the energy of this one
  4. This earthquake M 1.7 about 11 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 44.3892, -121.0248. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jefferson County, OR 31 km (19 mi) SSE of here earthquakes near Jefferson County
Deschutes County, OR 55 km (34 mi) NNE of here earthquakes near Deschutes County
Crook County, OR 58 km (36 mi) WNW of here earthquakes near Crook County
Wasco County, OR 87 km (54 mi) S of here earthquakes near Wasco County
Wheeler County, OR 88 km (55 mi) WSW of here earthquakes near Wheeler County
Sherman County, OR 116 km (72 mi) SSW of here earthquakes near Sherman County

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

Aftershocks so far

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

  1. 1.9 3 km WSW of Tumalo, Oregon
  2. 2.1 4 km NNW of Bend, Oregon
  3. 2.0 6 km SW of Tumalo, Oregon
  4. 2.5 5 km SW of Prineville, Oregon
  5. 1.7 3 km SW of Tumalo, Oregon
  6. 2.1 2 km ESE of Tumalo, Oregon
  7. 1.6 2 km SW of Tumalo, Oregon
  8. 2.1 11 km ENE of Terrebonne, Oregon
  9. 2.2 5 km NW of Bend, Oregon
  10. 1.5 8 km E of Culver, Oregon
  11. 2.2 5 km SW of Prineville, Oregon
  12. 2.5 29 km ESE of Bend, Oregon
  13. 1.8 2 km WSW of Tumalo, Oregon
  14. 1.8 3 km NW of Metolius, Oregon
  15. 1.8 28 km SE 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.