QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

6 km NNW of Mill City, Oregon

· 20 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Marion County 11 kmLinn County 36 kmClackamas County 46 kmPolk County 71 kmYamhill County 80 kmBenton County 81 kmMultnomah County 82 kmWashington County 94 kmHood River County 103 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
20 km below the surface
Felt
no reports yet
Nearest
Marion County, 11 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2433 days ago

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

How big was it?

This earthquake released about 9 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 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 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 44.8118, -122.5095. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Marion County, OR 11 km (7 mi) SSE of here earthquakes near Marion County
Linn County, OR 36 km (22 mi) N of here earthquakes near Linn County
Clackamas County, OR 46 km (29 mi) SSW of here earthquakes near Clackamas County
Polk County, OR 71 km (44 mi) E of here earthquakes near Polk County
Yamhill County, OR 80 km (50 mi) SE of here earthquakes near Yamhill County
Benton County, OR 81 km (50 mi) ENE of here earthquakes near Benton County

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

Aftershocks so far

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

  1. 1.8 16 km NNW of Cascadia, Oregon
  2. 1.6 14 km ESE of Scotts Mills, Oregon
  3. 2.0 16 km ESE of Lacomb, Oregon
  4. 1.7 6 km N of Waterloo, Oregon
  5. 1.9 5 km N of Waterloo, Oregon
  6. 1.6 8 km ESE of Molalla, Oregon
  7. 1.7 4 km WNW of Molalla, Oregon
  8. 2.7 4 km WNW of Molalla, Oregon
  9. 1.7 3 km SSW of Scotts Mills, Oregon
  10. 1.5 15 km ESE of Lacomb, Oregon
  11. 1.7 8 km SE of Molalla, Oregon
  12. 2.6 16 km ESE of Lacomb, Oregon
  13. 1.9 5 km E of Scotts Mills, Oregon
  14. 1.9 4 km SSW of Scotts Mills, Oregon
  15. 1.9 16 km NNW of Cascadia, 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.