QuakeIndex

Earthquake · reviewed by a seismologist

M 4.0ml

5 km E of Scotts Mills, Oregon

· 17 km deep · released about 13 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Marion County 15 kmClackamas County 35 kmMultnomah County 59 kmLinn County 61 kmYamhill County 61 kmPolk County 65 kmWashington County 70 kmClark County 82 kmBenton County 89 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 4.0 (ml)
Depth
17 km below the surface
Felt
4616 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Marion County, 15 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2892 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4616 people have reported feeling it to USGS.

How big was it?

This earthquake released about 13 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 13,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 580× the energy of this one
  3. Magna, Utah 2020 M 5.7 410× the energy of this one
  4. This earthquake M 4.0 about 13 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 28× more

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 45.0353, -122.5993. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Marion County, OR 15 km (9 mi) N of here earthquakes near Marion County
Clackamas County, OR 35 km (22 mi) WSW of here earthquakes near Clackamas County
Multnomah County, OR 59 km (36 mi) SSW of here earthquakes near Multnomah County
Linn County, OR 61 km (38 mi) N of here earthquakes near Linn County
Yamhill County, OR 61 km (38 mi) ESE of here earthquakes near Yamhill County
Polk County, OR 65 km (40 mi) ENE of here earthquakes near Polk County

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

Aftershocks so far

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

  1. 2.0 4 km E of Scotts Mills, Oregon
  2. 2.2 3 km W of Mehama, Oregon
  3. 1.8 Washington-Oregon border region
  4. 1.6 7 km E of Molalla, Oregon
  5. 1.6 2 km E of Sherwood, Oregon
  6. 1.9 5 km SE of Silverton, Oregon
  7. 1.5 3 km SSW of Beaverton, Oregon
  8. 1.8 9 km ESE of Scotts Mills, OR
  9. 1.9 3 km WSW of Dundee, Oregon
  10. 1.8 8 km SE of Molalla, Oregon
  11. 2.0 3 km W of Mehama, Oregon
  12. 2.4 3 km WNW of Molalla, Oregon
  13. 2.6 6 km ESE of Scotts Mills, Oregon
  14. 1.5 4 km W of Mulino, Oregon
  15. 1.7 8 km SE 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.