QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

9 km NW of Keizer, Oregon

· 22 km deep · released about 830 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yamhill County 27 kmPolk County 30 kmMarion County 44 kmWashington County 55 kmBenton County 68 kmTillamook County 68 kmClackamas County 72 kmMultnomah County 76 kmLinn County 77 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 3.0 (ml)
Depth
22 km below the surface
Felt
124 reports · strongest reported intensity III
Measured shaking
intensity III (ShakeMap)
Nearest
Yamhill County, 27 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 308 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 124 people have reported feeling it to USGS.

How big was it?

This earthquake released about 830 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 410,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 13,000× the energy of this one
  4. This earthquake M 3.0 about 830 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 45.0577, -123.0955. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yamhill County, OR 27 km (17 mi) SE of here earthquakes near Yamhill County
Polk County, OR 30 km (18 mi) NE of here earthquakes near Polk County
Marion County, OR 44 km (28 mi) WNW of here earthquakes near Marion County
Washington County, OR 55 km (34 mi) S of here earthquakes near Washington County
Benton County, OR 68 km (42 mi) NNE of here earthquakes near Benton County
Tillamook County, OR 68 km (42 mi) SE of here earthquakes near Tillamook County

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

Aftershocks so far

52 earthquakes have been recorded within 50 km since this one.

  1. 1.6 2 km E of Sherwood, Oregon
  2. 1.9 5 km SE of Silverton, Oregon
  3. 1.5 3 km SSW of Beaverton, Oregon
  4. 1.8 9 km ESE of Scotts Mills, OR
  5. 1.9 3 km WSW of Dundee, Oregon
  6. 1.6 10 km NNW of Adair Village, Oregon
  7. 1.5 18 km W of Yamhill, Oregon
  8. 2.0 3 km W of Mehama, Oregon
  9. 2.4 3 km WNW of Molalla, Oregon
  10. 2.6 6 km ESE of Scotts Mills, Oregon
  11. 1.5 4 km W of Mulino, Oregon
  12. 1.7 4 km SSW of Scotts Mills, Oregon
  13. 1.6 9 km NNW of Keizer, Oregon
  14. 1.7 9 km NNW of Keizer, Oregon
  15. 1.8 1 km N of Amity, 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.