QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

18 km SW of Nile, Washington

· 9.8 km deep · released about 37 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yakima County 42 kmKittitas County 57 kmPierce County 86 kmLewis County 96 kmKlickitat County 98 kmSkamania County 100 kmKing County 101 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 2.1 (ml)
Depth
9.8 km below the surface
Felt
no reports yet
Nearest
Yakima County, 42 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 388 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 37 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 410,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 290,000× the energy of this one
  3. Around the size people start to feel M 3.0 26× the energy of this one
  4. This earthquake M 2.1 about 37 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 46.7213, -121.1312. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yakima County, WA 42 km (26 mi) NW of here earthquakes near Yakima County
Kittitas County, WA 57 km (35 mi) SW of here earthquakes near Kittitas County
Pierce County, WA 86 km (53 mi) ESE of here earthquakes near Pierce County
Lewis County, WA 96 km (60 mi) E of here earthquakes near Lewis County
Klickitat County, WA 98 km (61 mi) NNW of here earthquakes near Klickitat County
Skamania County, WA 100 km (62 mi) NE of here earthquakes near Skamania County

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

Aftershocks so far

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

  1. 0.8 26 km NNE of Packwood, Washington
  2. 0.6 26 km NNE of Packwood, Washington
  3. 1.6 17 km SSW of Nile, Washington
  4. 1.5 20 km S of Packwood, Washington
  5. 2.3 17 km SW of Nile, Washington
  6. 1.6 3 km S of Packwood, Washington
  7. 2.6 17 km SW of Nile, Washington
  8. 1.5 18 km SW of Nile, Washington
  9. 1.6 2 km WNW of Summitview, Washington
  10. 2.8 13 km NW of Cliffdell, Washington
  11. 1.6 17 km SW of Nile, Washington
  12. 2.0 17 km WSW of Nile, Washington
  13. 1.8 15 km SW of Thorp, Washington
  14. 1.8 17 km SW of Nile, Washington
  15. 1.8 17 km SW of Nile, 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.