QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

9 km SSW of Saint Paul, Oregon

· 23 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yamhill County 25 kmPolk County 39 kmMarion County 45 kmWashington County 46 kmTillamook County 66 kmClackamas County 66 kmMultnomah County 66 kmBenton County 78 kmClark County 82 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
23 km below the surface
Felt
no reports yet
Nearest
Yamhill County, 25 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 512 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 2.7 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 1.7 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 45.1432, -123.0392. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yamhill County, OR 25 km (15 mi) ESE of here earthquakes near Yamhill County
Polk County, OR 39 km (24 mi) NE of here earthquakes near Polk County
Marion County, OR 45 km (28 mi) NW of here earthquakes near Marion County
Washington County, OR 46 km (28 mi) S of here earthquakes near Washington County
Tillamook County, OR 66 km (41 mi) ESE of here earthquakes near Tillamook County
Clackamas County, OR 66 km (41 mi) W of here earthquakes near Clackamas 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. 1.2 13 km SE of Scotts Mills, Oregon
  2. 1.6 5 km SSE of Molalla, Oregon
  3. 2.0 2 km SE of Amity, Oregon
  4. 1.5 9 km ESE of Scotts Mills, Oregon
  5. 1.9 3 km S of Fort Hill, Oregon
  6. 2.0 7 km WNW of McMinnville, Oregon
  7. 1.5 5 km WNW of King City, Oregon
  8. 1.7 7 km ESE of Amity, Oregon
  9. 2.0 2 km WNW of Dundee, Oregon
  10. 1.7 8 km S of Molalla, Oregon
  11. 1.9 7 km S of Dayton, Oregon
  12. 1.6 2 km WSW of Stafford, Oregon
  13. 1.6 4 km NE of Falls City, Oregon
  14. 1.8 4 km SSE of Stafford, Oregon
  15. 1.7 8 km S of Molalla, 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.