QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

2 km NNW of North Powder, Oregon

· 9.0 km deep · released about 29 lb of TNT

10 km30 km60 km120 km N Union County 29 kmBaker County 43 kmWallowa County 85 kmUmatilla County 87 kmGrant County 105 kmWashington County 112 kmAdams County 118 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 2.0 (ml)
Depth
9.0 km below the surface
Felt
no reports yet
Nearest
Union County, 29 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 38 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 29 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 520,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 370,000× the energy of this one
  3. Around the size people start to feel M 3.0 33× the energy of this one
  4. This earthquake M 2.0 about 29 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 45.0477, -117.9377. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Union County, OR 29 km (18 mi) S of here earthquakes near Union County
Baker County, OR 43 km (27 mi) NNW of here earthquakes near Baker County
Wallowa County, OR 85 km (53 mi) SW of here earthquakes near Wallowa County
Umatilla County, OR 87 km (54 mi) SE of here earthquakes near Umatilla County
Grant County, OR 105 km (65 mi) NE of here earthquakes near Grant County
Washington County, ID 112 km (70 mi) NW of here earthquakes near Washington 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.