QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

16 km E of Richland, Oregon

Yes. A magnitude 2.4 earthquake was recorded 16 km E of Richland, Oregon, at 11:01 am MDT on 22 April 2025 (17:01 UTC), 9.4 km deep.

· 9.4 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 36 kmAdams County 42 kmBaker County 58 kmPayette County 84 kmGem County 88 kmWallowa County 96 kmUnion County 103 kmValley 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 2.4 (ml)
Depth
9.4 km below the surface
Felt
no reports yet
Nearest
Washington County, 36 km SSE
Nearest mapped fault
Rush Peak fault, 11 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 569 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.4× the energy of this one
  4. This earthquake M 2.4 about 100 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 44.7472, -116.9565. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Washington County, ID 36 km (22 mi) SSE earthquakes near Washington County
Adams County, ID 42 km (26 mi) ENE earthquakes near Adams County
Baker County, OR 58 km (36 mi) W earthquakes near Baker County
Payette County, ID 84 km (52 mi) SSE earthquakes near Payette County
Gem County, ID 88 km (55 mi) SSE earthquakes near Gem County
Wallowa County, OR 96 km (60 mi) N earthquakes near Wallowa County

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

Aftershocks so far

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

  1. 1.9 26 km NW of Huntington, Oregon
  2. 1.5 19 km ESE of Richland, Oregon
  3. 1.6 27 km NNW of Huntington, Oregon
  4. 2.1 29 km SW of Richland, Oregon
  5. 1.8 25 km NW of Huntington, Oregon
  6. 2.1 24 km NW of Huntington, Oregon
  7. 1.7 25 km NW of Huntington, Oregon
  8. 1.8 27 km NW of Huntington, Oregon
  9. 2.3 9 km E of Halfway, Oregon
  10. 2.2 27 km NW of Huntington, Oregon
  11. 1.6 23 km NNW of Huntington, Oregon
  12. 1.7 24 km NNW of Huntington, Oregon
  13. 2.1 17 km NNW of Halfway, Oregon
  14. 1.9 22 km NNW of Huntington, Oregon
  15. 1.7 23 km NNW of Huntington, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.