QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

33 km NE of Halfway, Oregon

· 6.3 km deep · released about 30 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Adams County 31 kmWashington County 68 kmWallowa County 68 kmBaker County 83 kmValley County 93 kmUnion County 100 kmGem County 114 kmPayette County 117 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 2.0 (ml)
Depth
6.3 km below the surface
Felt
no reports yet
Nearest
Adams County, 31 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1001 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 45.0555, -116.7672. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Adams County, ID 31 km (19 mi) NW of here earthquakes near Adams County
Washington County, ID 68 km (42 mi) N of here earthquakes near Washington County
Wallowa County, OR 68 km (42 mi) SSE of here earthquakes near Wallowa County
Baker County, OR 83 km (51 mi) ENE of here earthquakes near Baker County
Valley County, ID 93 km (58 mi) WNW of here earthquakes near Valley County
Union County, OR 100 km (62 mi) ESE of here earthquakes near Union County

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

Aftershocks so far

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

  1. 2.3 9 km E of Halfway, Oregon
  2. 2.1 17 km NNW of Halfway, Oregon
  3. 1.9 17 km NW of New Meadows, Idaho
  4. 2.1 19 km NNW of Halfway, Oregon
  5. 2.4 16 km E of Richland, Oregon
  6. 2.2 11 km ESE of Halfway, Oregon
  7. 1.5 20 km NW of New Meadows, Idaho
  8. 2.0 17 km NW of New Meadows, Idaho
  9. 2.4 21 km NW of New Meadows, Idaho
  10. 2.3 13 km NNW of New Meadows, Idaho
  11. 1.9 23 km ESE of Halfway, Oregon
  12. 2.3 19 km NW of New Meadows, Idaho

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.