QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

8 km SSW of Prosser, Washington

· 0.7 km deep · released about 6.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Benton County 26 kmYakima County 78 kmKlickitat County 80 kmMorrow County 82 kmFranklin County 83 kmGilliam County 91 kmWalla Walla County 104 kmUmatilla County 104 kmSherman County 106 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 1.6 (ml)
Depth
0.7 km below the surface
Felt
no reports yet
Nearest
Benton County, 26 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 970 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 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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 46.1418, -119.8257. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Benton County, WA 26 km (16 mi) WSW of here earthquakes near Benton County
Yakima County, WA 78 km (49 mi) ESE of here earthquakes near Yakima County
Klickitat County, WA 80 km (49 mi) ENE of here earthquakes near Klickitat County
Morrow County, OR 82 km (51 mi) NNW of here earthquakes near Morrow County
Franklin County, WA 83 km (52 mi) WSW of here earthquakes near Franklin County
Gilliam County, OR 91 km (57 mi) NNE of here earthquakes near Gilliam County

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

Aftershocks so far

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

  1. 2.1 12 km SSE of Bickleton, Washington
  2. 2.0 20 km SW of Desert Aire, Washington
  3. 1.7 4 km ESE of Umatilla, Oregon
  4. 1.8 3 km SSW of West Richland, Washington
  5. 2.8 5 km ESE of Benton City, Washington
  6. 2.0 4 km ESE of Umatilla, Oregon
  7. 1.9 4 km ESE of Umatilla, Oregon
  8. 1.7 8 km N of Roosevelt, Washington
  9. 2.0 3 km E of Umatilla, Oregon
  10. 1.5 17 km NNE of Roosevelt, Washington
  11. 1.5 13 km NNE of Roosevelt, Washington
  12. 1.9 16 km ENE of Arlington, Oregon
  13. 2.0 8 km SSE of Bickleton, Washington
  14. 2.3 4 km SSW of West Richland, Washington
  15. 2.0 4 km SE of Umatilla, Oregon

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

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