QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

13 km SW of Wallowa, Oregon

· 7.3 km deep · released about 230 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Union County 34 kmWallowa County 38 kmAsotin County 84 kmUmatilla County 86 kmBaker County 87 kmColumbia County 93 kmGarfield County 106 kmWalla Walla County 108 kmAdams County 115 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 2.6 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Union County, 34 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3156 days ago

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

How big was it?

This earthquake released about 230 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 65,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 46,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.1× the energy of this one
  4. This earthquake M 2.6 about 230 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 45.4813, -117.6460. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Union County, OR 34 km (21 mi) NE of here earthquakes near Union County
Wallowa County, OR 38 km (24 mi) WSW of here earthquakes near Wallowa County
Asotin County, WA 84 km (52 mi) SSW of here earthquakes near Asotin County
Umatilla County, OR 86 km (53 mi) E of here earthquakes near Umatilla County
Baker County, OR 87 km (54 mi) N of here earthquakes near Baker County
Columbia County, WA 93 km (58 mi) SSE of here earthquakes near Columbia County

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

Aftershocks so far

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

  1. 1.5 3 km SSE of Wallowa, Oregon
  2. 1.5 22 km NNE of Elgin, Oregon
  3. 1.6 13 km SW of Lostine, Oregon
  4. 1.6 6 km WSW of La Grande, Oregon
  5. 1.8 10 km SE of La Grande, Oregon
  6. 1.6 21 km ESE of Cove, Oregon
  7. 2.7 6 km NNW of Summerville, Oregon
  8. 2.0 15 km WSW of Lostine, Oregon
  9. 1.6 14 km NE of Cove, Oregon
  10. 2.1 17 km WSW of Lostine, Oregon
  11. 2.0 15 km WSW of Lostine, Oregon
  12. 1.5 17 km WSW of Lostine, Oregon
  13. 1.8 16 km WSW of Lostine, Oregon
  14. 1.8 16 km WSW of Lostine, Oregon
  15. 2.2 15 km WSW of Lostine, 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.