QuakeIndex

explosion · reviewed by a seismologist

M 1.9ml

12 km W of Highland, Washington

· -0.3 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Benton County 21 kmFranklin County 53 kmWalla Walla County 63 kmUmatilla County 74 kmMorrow County 83 kmColumbia County 106 kmAdams County 113 kmGilliam County 114 kmYakima County 118 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 1.9 (ml)
Depth
-0.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Benton County, 21 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1592 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 46.1357, -119.2753. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Benton County, WA 21 km (13 mi) ESE of here earthquakes near Benton County
Franklin County, WA 53 km (33 mi) SSW of here earthquakes near Franklin County
Walla Walla County, WA 63 km (39 mi) WSW of here earthquakes near Walla Walla County
Umatilla County, OR 74 km (46 mi) NW of here earthquakes near Umatilla County
Morrow County, OR 83 km (52 mi) NNE of here earthquakes near Morrow County
Columbia County, WA 106 km (66 mi) W of here earthquakes near Columbia County

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

Aftershocks so far

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

  1. 2.0 4 km ESE of Umatilla, Oregon
  2. 1.9 4 km ESE of Umatilla, Oregon
  3. 2.0 16 km S of Mesa, Washington
  4. 1.7 10 km SW of Kennewick, Washington
  5. 1.9 9 km WNW of Touchet, Washington
  6. 2.0 3 km E of Umatilla, Oregon
  7. 1.6 9 km WNW of Highland, Washington
  8. 1.7 1 km WNW of Highland, Washington
  9. 2.0 2 km WSW of Burbank, Washington
  10. 1.8 4 km SSE of Kennewick, Washington
  11. 2.3 4 km SSW of West Richland, Washington
  12. 1.6 4 km S of Echo, Oregon
  13. 1.7 10 km SSW of Tri-Cities, Washington
  14. 2.0 4 km SE of Umatilla, Oregon
  15. 1.6 10 km ENE of Prosser, 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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