QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

5 km NE of Dixie, Washington

· 12 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Columbia County 20 kmWalla Walla County 31 kmGarfield County 52 kmAsotin County 67 kmFranklin County 74 kmUmatilla County 81 kmWhitman County 92 kmWallowa County 95 kmUnion County 97 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 1.9 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Columbia County, 20 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 688 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 25 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 5.8 600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 420,000× the energy of this one
  3. Around the size people start to feel M 3.0 38× the energy of this one
  4. This earthquake M 1.9 about 25 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 46.1707, -118.0948. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Columbia County, WA 20 km (12 mi) SW of here earthquakes near Columbia County
Walla Walla County, WA 31 km (19 mi) ESE of here earthquakes near Walla Walla County
Garfield County, WA 52 km (32 mi) WSW of here earthquakes near Garfield County
Asotin County, WA 67 km (41 mi) W of here earthquakes near Asotin County
Franklin County, WA 74 km (46 mi) ESE of here earthquakes near Franklin County
Umatilla County, OR 81 km (50 mi) NE of here earthquakes near Umatilla County

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

Aftershocks so far

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

  1. 1.9 6 km WSW of Dayton, Washington
  2. 1.7 15 km NW of Pomeroy, Washington
  3. 2.1 5 km S of Milton-Freewater, Oregon
  4. 1.6 5 km SW of Dayton, Washington
  5. 1.7 6 km WSW of Dayton, Washington
  6. 1.6 11 km E of Milton-Freewater, Oregon
  7. 1.7 11 km E of Milton-Freewater, Oregon
  8. 2.0 16 km WNW of Pomeroy, Washington
  9. 1.7 6 km WSW of Dayton, Washington
  10. 2.0 4 km ESE of Milton-Freewater, Oregon
  11. 1.5 22 km NNE of Elgin, Oregon
  12. 1.6 7 km SW of Dayton, Washington
  13. 1.6 19 km SE of Walla Walla East, Washington
  14. 1.9 7 km WSW of Dayton, Washington
  15. 1.7 7 km ENE of Waitsburg, Washington

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.