QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

4 km ESE of Cascadia, Oregon

· 12 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Linn County 15 kmMarion County 59 kmLane County 63 kmBenton County 80 kmClackamas County 89 kmPolk County 96 kmJefferson County 104 kmDeschutes County 109 kmYamhill County 119 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 2.5 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Linn County, 15 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3278 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 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 44.3798, -122.4308. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Linn County, OR 15 km (9 mi) SE of here earthquakes near Linn County
Marion County, OR 59 km (37 mi) SSE of here earthquakes near Marion County
Lane County, OR 63 km (39 mi) NE of here earthquakes near Lane County
Benton County, OR 80 km (50 mi) E of here earthquakes near Benton County
Clackamas County, OR 89 km (55 mi) SSW of here earthquakes near Clackamas County
Polk County, OR 96 km (60 mi) SE of here earthquakes near Polk 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. 1.7 6 km N of Waterloo, Oregon
  2. 1.9 5 km N of Waterloo, Oregon
  3. 1.5 15 km ESE of Lacomb, Oregon
  4. 2.6 16 km ESE of Lacomb, Oregon
  5. 1.9 16 km NNW of Cascadia, Oregon
  6. 1.7 14 km E of Lacomb, Oregon
  7. 1.6 6 km W of Lacomb, Oregon
  8. 1.8 4 km N of Sweet Home, Oregon
  9. 1.9 1 km SSE of Sodaville, Oregon
  10. 1.6 5 km ENE of Lebanon, Oregon
  11. 1.5 4 km NNW of Sweet Home, Oregon
  12. 1.6 15 km SSE of Holley, Oregon
  13. 1.7 10 km SE of Holley, Oregon
  14. 2.8 2 km W of Mehama, Oregon
  15. 1.6 13 km ESE of Lacomb, 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.