QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

1 km SSW of Beaverton, Oregon

· 27 km deep · released about 1,200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 24 kmMultnomah County 32 kmClark County 42 kmYamhill County 47 kmColumbia County 56 kmClackamas County 60 kmMarion County 66 kmTillamook County 74 kmPolk 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 3.1 (ml)
Depth
27 km below the surface
Felt
83 reports · strongest reported intensity III
Measured shaking
intensity II (ShakeMap)
Nearest
Washington County, 24 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 553 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 83 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 280,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 12,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 8,800× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.3× 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 45.4748, -122.8133. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washington County, OR 24 km (15 mi) ESE of here earthquakes near Washington County
Multnomah County, OR 32 km (20 mi) WSW of here earthquakes near Multnomah County
Clark County, WA 42 km (26 mi) SW of here earthquakes near Clark County
Yamhill County, OR 47 km (29 mi) ENE of here earthquakes near Yamhill County
Columbia County, OR 56 km (35 mi) SSE of here earthquakes near Columbia County
Clackamas County, OR 60 km (37 mi) NW of here earthquakes near Clackamas County

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

Aftershocks so far

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

  1. 2.6 8 km S of Scappoose, Oregon
  2. 2.8 6 km WNW of Gervais, Oregon
  3. 1.8 9 km NNE of Bethany, Oregon
  4. 1.8 7 km SW of Aloha, Oregon
  5. 1.5 1 km NE of Lewisville, Washington
  6. 1.6 4 km SSW of Yacolt, Washington
  7. 2.0 6 km WNW of Warren, Oregon
  8. 1.5 5 km WSW of Yacolt, Washington
  9. 1.9 2 km WSW of Dundee, Oregon
  10. 1.6 Washington-Oregon border region
  11. 1.8 4 km WNW of Saint Helens, Oregon
  12. 1.5 7 km SE of Molalla, Oregon
  13. 2.1 8 km SE of Molalla, Oregon
  14. 2.3 3 km W of Molalla, Oregon
  15. 2.1 2 km ENE of Lewisville, Washington

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.