QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

3 km SSE of Wallowa, Oregon

· 14 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Wallowa County 26 kmUnion County 46 kmAsotin County 75 kmColumbia County 89 kmBaker County 94 kmUmatilla County 95 kmGarfield County 99 kmNez Perce County 106 kmWalla Walla County 109 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.5 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Wallowa County, 26 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 4 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 5.4 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 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 45.5412, -117.5167. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Wallowa County, OR 26 km (16 mi) WSW of here earthquakes near Wallowa County
Union County, OR 46 km (29 mi) NE of here earthquakes near Union County
Asotin County, WA 75 km (46 mi) SSW of here earthquakes near Asotin County
Columbia County, WA 89 km (55 mi) SSE of here earthquakes near Columbia County
Baker County, OR 94 km (59 mi) N of here earthquakes near Baker County
Umatilla County, OR 95 km (59 mi) E of here earthquakes near Umatilla County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.