QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

2 km N of Woodburn, Oregon

· 16 km deep · released about 6.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Marion County 37 kmYamhill County 37 kmWashington County 47 kmPolk County 52 kmClackamas County 52 kmMultnomah County 55 kmClark County 74 kmTillamook County 77 kmLinn County 79 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 1.6 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Marion County, 37 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1005 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 6.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 45.1643, -122.8600. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Marion County, OR 37 km (23 mi) NW of here earthquakes near Marion County
Yamhill County, OR 37 km (23 mi) ESE of here earthquakes near Yamhill County
Washington County, OR 47 km (29 mi) SSE of here earthquakes near Washington County
Polk County, OR 52 km (32 mi) NE of here earthquakes near Polk County
Clackamas County, OR 52 km (32 mi) W of here earthquakes near Clackamas County
Multnomah County, OR 55 km (34 mi) SW of here earthquakes near Multnomah 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 14 km N of Mehama, Oregon
  2. 1.7 9 km SSW of Saint Paul, Oregon
  3. 1.8 10 km ESE of Molalla, Oregon
  4. 1.6 5 km W of Dallas, Oregon
  5. 1.6 16 km WNW of McMinnville, Oregon
  6. 1.7 4 km ENE of Lafayette, Oregon
  7. 1.7 5 km W of Mehama, Oregon
  8. 2.0 4 km NNE of Lafayette, Oregon
  9. 1.7 11 km SE of Silverton, Oregon
  10. 1.6 3 km E of Sherwood, Oregon
  11. 1.9 7 km ESE of Molalla, Oregon
  12. 1.7 4 km ENE of Molalla, Oregon
  13. 1.8 5 km ENE of Molalla, Oregon
  14. 2.1 5 km ENE of Molalla, Oregon
  15. 1.6 8 km ESE of Molalla, 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.