QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

5 km SE of Silverton, Oregon

· 19 km deep · released about 22 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Marion County 15 kmClackamas County 48 kmPolk County 52 kmYamhill County 55 kmLinn County 55 kmMultnomah County 69 kmWashington County 71 kmBenton County 75 kmClark County 92 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 1.9 (ml)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Marion County, 15 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 568 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 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 44.9662, -122.7385. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Marion County, OR 15 km (9 mi) WNW of here earthquakes near Marion County
Clackamas County, OR 48 km (30 mi) WSW of here earthquakes near Clackamas County
Polk County, OR 52 km (33 mi) E of here earthquakes near Polk County
Yamhill County, OR 55 km (34 mi) SE of here earthquakes near Yamhill County
Linn County, OR 55 km (34 mi) NNW of here earthquakes near Linn County
Multnomah County, OR 69 km (43 mi) SSW of here earthquakes near Multnomah County

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

Aftershocks so far

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

  1. 1.5 6 km SE of Molalla, Oregon
  2. 1.8 3 km W of Saint Paul, Oregon
  3. 1.8 16 km NNW of Cascadia, Oregon
  4. 1.6 14 km ESE of Scotts Mills, Oregon
  5. 2.0 16 km ESE of Lacomb, Oregon
  6. 1.7 8 km SE of Amity, Oregon
  7. 1.7 6 km N of Waterloo, Oregon
  8. 2.0 4 km WNW of Dundee, Oregon
  9. 1.6 1 km SSE of King City, Oregon
  10. 1.9 5 km N of Waterloo, Oregon
  11. 1.6 8 km ESE of Molalla, Oregon
  12. 1.7 4 km WNW of Molalla, Oregon
  13. 2.7 4 km WNW of Molalla, Oregon
  14. 2.2 1 km SW of Carlton, Oregon
  15. 1.7 3 km SSW 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.

On USGS

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