QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

17 km SE of Prosser, Washington

· 7.5 km deep · released about 8.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Benton County 17 kmMorrow County 74 kmFranklin County 74 kmUmatilla County 89 kmWalla Walla County 90 kmKlickitat County 93 kmGilliam County 94 kmYakima County 95 kmSherman County 112 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
7.5 km below the surface
Felt
no reports yet
Nearest
Benton County, 17 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1110 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 8.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 46.0912, -119.6232. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Benton County, WA 17 km (11 mi) SSW of here earthquakes near Benton County
Morrow County, OR 74 km (46 mi) N of here earthquakes near Morrow County
Franklin County, WA 74 km (46 mi) SW of here earthquakes near Franklin County
Umatilla County, OR 89 km (55 mi) NW of here earthquakes near Umatilla County
Walla Walla County, WA 90 km (56 mi) WSW of here earthquakes near Walla Walla County
Klickitat County, WA 93 km (58 mi) ENE of here earthquakes near Klickitat County

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

Aftershocks so far

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

  1. 1.7 12 km NE of Hermiston, Oregon
  2. 1.9 11 km W of Highland, Washington
  3. 1.7 11 km W of Highland, Washington
  4. 1.5 14 km NE of Hermiston, Oregon
  5. 2.1 2 km N of Highland, Washington
  6. 1.7 4 km ESE of Umatilla, Oregon
  7. 1.8 11 km W of Highland, Washington
  8. 1.7 12 km ENE of Hermiston, Oregon
  9. 2.0 7 km WNW of Highland, Washington
  10. 1.8 3 km SSW of West Richland, Washington
  11. 1.8 11 km SSW of Tri-Cities, Washington
  12. 2.8 5 km ESE of Benton City, Washington
  13. 2.0 4 km ESE of Umatilla, Oregon
  14. 1.9 4 km ESE of Umatilla, Oregon
  15. 1.7 10 km SW of Kennewick, 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

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