QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

5 km SE of Amity, Oregon

· 15 km deep · released about 1,800 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yamhill County 23 kmPolk County 27 kmMarion County 50 kmWashington County 53 kmTillamook County 63 kmBenton County 68 kmClackamas County 76 kmLincoln County 77 kmMultnomah County 78 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 3.2 (ml)
Depth
15 km below the surface
Felt
228 reports · strongest reported intensity III
Measured shaking
intensity III (ShakeMap)
Nearest
Yamhill County, 23 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 220 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 228 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,800 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 190,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,500× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,000× the energy of this one
  4. This earthquake M 3.2 about 1,800 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.9× 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 45.0753, -123.1575. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yamhill County, OR 23 km (14 mi) SSE of here earthquakes near Yamhill County
Polk County, OR 27 km (17 mi) NE of here earthquakes near Polk County
Marion County, OR 50 km (31 mi) WNW of here earthquakes near Marion County
Washington County, OR 53 km (33 mi) S of here earthquakes near Washington County
Tillamook County, OR 63 km (39 mi) SE of here earthquakes near Tillamook County
Benton County, OR 68 km (42 mi) NNE of here earthquakes near Benton County

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

Aftershocks so far

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

  1. 2.0 2 km SE of Amity, Oregon
  2. 1.9 3 km S of Fort Hill, Oregon
  3. 2.0 7 km WNW of McMinnville, Oregon
  4. 1.5 5 km WNW of King City, Oregon
  5. 1.7 7 km ESE of Amity, Oregon
  6. 2.0 2 km WNW of Dundee, Oregon
  7. 1.9 7 km S of Dayton, Oregon
  8. 1.6 2 km WSW of Stafford, Oregon
  9. 1.6 4 km NE of Falls City, Oregon
  10. 1.8 4 km SSE of Stafford, Oregon
  11. 2.1 4 km NE of Lafayette, Oregon
  12. 1.5 2 km NW of Sheridan, Oregon
  13. 1.6 24 km NNW of Sheridan, Oregon
  14. 1.8 8 km W of Falls City, Oregon
  15. 1.7 2 km E 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.