QuakeIndex

explosion · reviewed by a seismologist

M 1.6ml

1 km W of Turner, Oregon

· -0.3 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Marion County 32 kmPolk County 34 kmLinn County 52 kmBenton County 53 kmYamhill County 53 kmClackamas County 71 kmLincoln County 77 kmWashington County 80 kmMultnomah County 90 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 1.6 (ml)
Depth
-0.3 km below the surface
Felt
no reports yet
Nearest
Marion County, 32 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 818 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 7.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 44.8410, -122.9735. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Marion County, OR 32 km (20 mi) WSW of here earthquakes near Marion County
Polk County, OR 34 km (21 mi) E of here earthquakes near Polk County
Linn County, OR 52 km (32 mi) NW of here earthquakes near Linn County
Benton County, OR 53 km (33 mi) NE of here earthquakes near Benton County
Yamhill County, OR 53 km (33 mi) SSE of here earthquakes near Yamhill County
Clackamas County, OR 71 km (44 mi) WSW of here earthquakes near Clackamas County

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

Aftershocks so far

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

  1. 3.2 5 km SE of Amity, Oregon
  2. 1.6 6 km S of Dayton, Oregon
  3. 1.6 6 km NNW of Philomath, Oregon
  4. 1.6 6 km ESE of Molalla, Oregon
  5. 1.9 4 km NE of Lafayette, Oregon
  6. 1.6 5 km W of Dallas, Oregon
  7. 1.6 4 km SSW of Scotts Mills, Oregon
  8. 1.8 6 km ESE of Molalla, Oregon
  9. 1.8 3 km W of Mehama, Oregon
  10. 2.0 3 km WSW of Dundee, Oregon
  11. 2.1 7 km ESE of Molalla, Oregon
  12. 1.5 4 km SSW of Scotts Mills, Oregon
  13. 1.5 1 km SSE of Hubbard, Oregon
  14. 2.0 4 km N of Sweet Home, Oregon
  15. 1.8 8 km ESE of Scotts Mills, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2022-10-07 — it released about 15,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.