QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

13 km N of Summit, Oregon

· 47 km deep · released about 12 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Polk County 23 kmLincoln County 27 kmBenton County 33 kmYamhill County 59 kmTillamook County 79 kmMarion County 83 kmLinn County 90 kmWashington County 97 kmLane County 108 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 1.7 (ml)
Depth
47 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Polk County, 23 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 571 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 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 44.7567, -123.6098. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Polk County, OR 23 km (14 mi) SW of here earthquakes near Polk County
Lincoln County, OR 27 km (17 mi) ENE of here earthquakes near Lincoln County
Benton County, OR 33 km (20 mi) NNW of here earthquakes near Benton County
Yamhill County, OR 59 km (37 mi) SSW of here earthquakes near Yamhill County
Tillamook County, OR 79 km (49 mi) S of here earthquakes near Tillamook County
Marion County, OR 83 km (52 mi) W of here earthquakes near Marion County

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

Aftershocks so far

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

  1. 1.8 2 km ENE of Blodgett, Oregon
  2. 1.9 3 km S of Fort Hill, Oregon
  3. 2.6 3 km SE of Rose Lodge, Oregon
  4. 1.8 4 km ENE of Lincoln Beach, Oregon
  5. 1.6 4 km NE of Falls City, Oregon
  6. 1.9 7 km SE of Toledo, Oregon
  7. 1.5 2 km NW of Sheridan, Oregon
  8. 1.8 8 km W of Falls City, Oregon
  9. 1.6 6 km NNW of Philomath, Oregon
  10. 1.6 5 km W of Dallas, Oregon
  11. 1.7 9 km WSW of Falls City, Oregon
  12. 2.2 9 km E of Lincoln Beach, Oregon
  13. 1.6 3 km S of Fort Hill, Oregon
  14. 1.8 6 km NNW of Philomath, Oregon
  15. 1.7 11 km ESE of Rose Lodge, 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.