QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

16 km NNW of Cascadia, Oregon

· 10 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Linn County 5 kmMarion County 40 kmBenton County 70 kmLane County 73 kmClackamas County 74 kmPolk County 79 kmYamhill County 100 kmJefferson County 109 kmLincoln County 109 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 1.9 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Linn County, 5 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1697 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 520,000× the energy of this one
  3. Around the size people start to feel M 3.0 46× the energy of this one
  4. This earthquake M 1.9 about 21 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 44.5378, -122.5427. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Linn County, OR 5 km (3 mi) N of here earthquakes near Linn County
Marion County, OR 40 km (25 mi) S of here earthquakes near Marion County
Benton County, OR 70 km (44 mi) E of here earthquakes near Benton County
Lane County, OR 73 km (46 mi) NNE of here earthquakes near Lane County
Clackamas County, OR 74 km (46 mi) SSW of here earthquakes near Clackamas County
Polk County, OR 79 km (49 mi) ESE 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. 1.2 13 km SE of Scotts Mills, Oregon
  2. 1.8 5 km NW of Lacomb, Oregon
  3. 1.6 5 km NW of Lacomb, Oregon
  4. 2.0 6 km W of Lacomb, Oregon
  5. 1.6 9 km SSE of Crawfordsville, Oregon
  6. 1.5 4 km SSE of Cascadia, Oregon
  7. 1.8 3 km W of Mehama, Oregon
  8. 1.5 1 km NNE of Cascadia, Oregon
  9. 2.0 4 km N of Sweet Home, Oregon
  10. 1.8 5 km N of Waterloo, Oregon
  11. 1.6 4 km NW of Brownsville, Oregon
  12. 1.7 5 km W of Mehama, Oregon
  13. 1.5 3 km S of Brownsville, Oregon
  14. 1.6 22 km N of Unity, Oregon
  15. 2.1 2 km WSW of Jefferson, 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.