QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

11 km SW of Royal City, Washington

· 2.1 km deep · released about 1.1 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 47 kmBenton County 69 kmFranklin County 71 kmKittitas County 78 kmYakima County 87 kmAdams County 95 kmDouglas County 101 kmWalla Walla 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 3.3 (ml)
Depth
2.1 km below the surface
Felt
13 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
Nearest
Grant County, 47 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 564 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 13 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 150,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 6,700× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,700× the energy of this one
  4. This earthquake M 3.3 about 1.1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.4× more

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 46.8298, -119.7367. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, WA 47 km (29 mi) SSW of here earthquakes near Grant County
Benton County, WA 69 km (43 mi) NNW of here earthquakes near Benton County
Franklin County, WA 71 km (44 mi) WNW of here earthquakes near Franklin County
Kittitas County, WA 78 km (49 mi) ESE of here earthquakes near Kittitas County
Yakima County, WA 87 km (54 mi) ENE of here earthquakes near Yakima County
Adams County, WA 95 km (59 mi) WSW of here earthquakes near Adams County

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

Aftershocks so far

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

  1. 2.0 20 km SW of Desert Aire, Washington
  2. 1.7 24 km E of Desert Aire, Washington
  3. 1.6 11 km SE of Desert Aire, Washington
  4. 2.3 11 km SE of Desert Aire, Washington
  5. 1.9 11 km SE of Desert Aire, Washington
  6. 1.6 11 km SE of Desert Aire, Washington
  7. 1.6 11 km SE of Desert Aire, Washington
  8. 2.4 11 km SE of Desert Aire, Washington
  9. 1.9 12 km SE of Desert Aire, Washington
  10. 1.6 12 km SE of Desert Aire, Washington
  11. 1.8 12 km SE of Desert Aire, Washington
  12. 1.7 12 km SE of Desert Aire, Washington
  13. 1.9 12 km SE of Desert Aire, Washington
  14. 1.9 12 km SE of Desert Aire, Washington
  15. 1.7 12 km SE of Desert Aire, 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.