QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

19 km NW of Bickleton, Washington

· 15 km deep · released about 16 lb of TNT

10 km30 km60 km120 km N Klickitat County 35 kmYakima County 42 kmBenton County 76 kmSherman County 81 kmGilliam County 83 kmMorrow County 103 kmHood River County 113 kmKittitas County 113 kmSkamania County 113 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 1.8 (ml)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Klickitat County, 35 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 684 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 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 680,000× the energy of this one
  3. Around the size people start to feel M 3.0 61× the energy of this one
  4. This earthquake M 1.8 about 16 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 46.1180, -120.4907. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Klickitat County, WA 35 km (22 mi) NE of here earthquakes near Klickitat County
Yakima County, WA 42 km (26 mi) SSE of here earthquakes near Yakima County
Benton County, WA 76 km (47 mi) W of here earthquakes near Benton County
Sherman County, OR 81 km (50 mi) N of here earthquakes near Sherman County
Gilliam County, OR 83 km (52 mi) NNW of here earthquakes near Gilliam County
Morrow County, OR 103 km (64 mi) NW of here earthquakes near Morrow County

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

Aftershocks so far

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

  1. 2.1 12 km SSE of Bickleton, Washington
  2. 1.5 17 km SSE of White Swan, Washington
  3. 3.1 5 km WSW of Harrah, Washington
  4. 1.7 20 km S of White Swan, Washington
  5. 1.7 1 km SSE of Goldendale, Washington
  6. 1.7 8 km N of Roosevelt, Washington
  7. 1.5 17 km NNE of Roosevelt, Washington
  8. 1.5 13 km NNE of Roosevelt, Washington
  9. 2.0 8 km SSE of Bickleton, Washington
  10. 1.5 7 km ESE of Tampico, 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.