QuakeIndex

explosion · reviewed by a seismologist

M 2.3md

Earthquake near Pullman, WA

No earthquake was likely felt in Pullman in the 24 hours to 3:57 am PST (11:57 UTC). The last one was M 2.1, 6 km (3 mi) ENE, at 12:55 pm PDT on 10 September 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Pullman

No: USGS classifies this as a explosion, not an earthquake. A magnitude 2.3 explosion was recorded 4 km (2 mi) east-southeast of Pullman, WA, at 12:02 pm PDT on 26 June 2025 (19:02 UTC), less than 1 km deep.

USGS: 3 km ESE of Pullman, Washington

12:02 pm PDT, Jun 26, 2025 · · -0.8 km deep · released about 94 lb of TNT

10 km30 km60 km120 km N Latah County 32 kmWhitman County 37 kmGarfield County 45 kmNez Perce County 52 kmAsotin County 61 kmBenewah County 67 kmLewis County 76 kmColumbia County 77 kmSpokane County 102 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
12:02 pm PDT on 26 June 2025 ()
Where
4 km (2 mi) east-southeast of Pullman, WA · earthquakes near Pullman
Magnitude
M 2.3 (md)
Depth
-0.8 km below the surface
Felt
no reports yet
Nearest
Latah County, 32 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 504 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 20 km (12 mi) from the epicentre. In Pullman, 4 km away, the estimate is intensity III (weak). 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.

Earthquakes near other towns within 30 km: Moscow, Palouse, Colfax.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 94 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 160,000× 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 10× the energy of this one
  4. This earthquake M 2.3 about 94 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 46.7220, -117.1293. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Latah County, ID 32 km (20 mi) ENE earthquakes near Latah County
Whitman County, WA 37 km (23 mi) WNW earthquakes near Whitman County
Garfield County, WA 45 km (28 mi) SW earthquakes near Garfield County
Nez Perce County, ID 52 km (32 mi) SSE earthquakes near Nez Perce County
Asotin County, WA 61 km (38 mi) S earthquakes near Asotin County
Benewah County, ID 67 km (42 mi) NE earthquakes near Benewah County

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

Aftershocks so far

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

  1. 1.7 4 km ESE of Colfax, Washington
  2. 1.7 7 km SW of Troy, Idaho
  3. 2.3 1 km NW of Asotin, Washington
  4. 2.1 5 km ENE of Pullman, Washington
  5. 2.3 9 km ESE of Princeton, Idaho
  6. 1.7 4 km E of Uniontown, Washington
  7. 2.3 4 km ENE of Pullman, Washington
  8. 1.8 7 km SSW of Tekoa, Washington
  9. 2.3 5 km SSW of Moscow, Idaho
  10. 1.7 6 km WSW of Troy, Idaho
  11. 1.6 8 km SSE of Pullman, Washington
  12. 2.1 2 km SSE of Lewiston Orchards, Idaho
  13. 2.2 8 km SW of Potlatch, Idaho
  14. 2.2 2 km NE of Lewiston Orchards, Idaho
  15. 1.8 14 km E of Pomeroy, 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.