QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

11 km NNE of Selah, Washington

· 7.1 km deep · released about 38 lb of TNT

10 km30 km60 km120 km N Yakima County 39 kmKittitas County 44 kmGrant County 91 kmBenton County 93 kmKlickitat 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
7.1 km below the surface
Felt
no reports yet
Nearest
Yakima County, 39 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 243 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 38 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 5.8 390,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 280,000× the energy of this one
  3. Around the size people start to feel M 3.0 25× the energy of this one
  4. This earthquake M 2.1 about 38 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 46.7525, -120.4658. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yakima County, WA 39 km (24 mi) NNE of here earthquakes near Yakima County
Kittitas County, WA 44 km (28 mi) SSE of here earthquakes near Kittitas County
Grant County, WA 91 km (57 mi) WSW of here earthquakes near Grant County
Benton County, WA 93 km (58 mi) NW of here earthquakes near Benton County
Klickitat County, WA 101 km (63 mi) NNE of here earthquakes near Klickitat County
Franklin County, WA 122 km (76 mi) WNW of here earthquakes near Franklin County

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

Aftershocks so far

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

  1. 1.6 11 km N of Selah, Washington
  2. 1.5 11 km N of Selah, Washington
  3. 3.1 5 km WSW of Harrah, Washington
  4. 1.6 12 km NW of Thorp, Washington
  5. 1.8 9 km SSW of Ellensburg, Washington
  6. 2.0 20 km SW of Desert Aire, Washington
  7. 1.7 3 km ESE of Kittitas, Washington
  8. 1.6 2 km WNW of Summitview, 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.