QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

5 km ENE of Sheridan, Oregon

· 30 km deep · released about 5.9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yamhill County 14 kmPolk County 25 kmTillamook County 50 kmWashington County 52 kmMarion County 64 kmBenton County 70 kmLincoln County 70 kmMultnomah County 86 kmClackamas 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 1.5 (ml)
Depth
30 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Yamhill County, 14 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 772 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 45.1188, -123.3282. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yamhill County, OR 14 km (9 mi) S of here earthquakes near Yamhill County
Polk County, OR 25 km (15 mi) NNE of here earthquakes near Polk County
Tillamook County, OR 50 km (31 mi) SE of here earthquakes near Tillamook County
Washington County, OR 52 km (32 mi) SSW of here earthquakes near Washington County
Marion County, OR 64 km (40 mi) WNW of here earthquakes near Marion County
Benton County, OR 70 km (43 mi) N of here earthquakes near Benton County

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

Aftershocks so far

46 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. 2.6 3 km SE of Rose Lodge, Oregon
  4. 1.9 21 km W of Forest Grove, Oregon
  5. 2.0 7 km WNW of McMinnville, Oregon
  6. 1.5 5 km WNW of King City, Oregon
  7. 1.7 7 km ESE of Amity, Oregon
  8. 2.0 2 km WNW of Dundee, Oregon
  9. 1.9 7 km S of Dayton, Oregon
  10. 1.6 4 km NE of Falls City, 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.