QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

4 km ESE of Rose Lodge, Oregon

· 43 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Polk County 36 kmLincoln County 39 kmYamhill County 50 kmTillamook County 52 kmBenton County 64 kmWashington County 85 kmMarion County 100 kmClatsop County 115 kmLinn County 117 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 1.8 (ml)
Depth
43 km below the surface
Felt
no reports yet
Nearest
Polk County, 36 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2336 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 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 930,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 660,000× the energy of this one
  3. Around the size people start to feel M 3.0 59× the energy of this one
  4. This earthquake M 1.8 about 16 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 44.9915, -123.8355. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Polk County, OR 36 km (22 mi) WNW of here earthquakes near Polk County
Lincoln County, OR 39 km (24 mi) N of here earthquakes near Lincoln County
Yamhill County, OR 50 km (31 mi) SW of here earthquakes near Yamhill County
Tillamook County, OR 52 km (32 mi) S of here earthquakes near Tillamook County
Benton County, OR 64 km (40 mi) NNW of here earthquakes near Benton County
Washington County, OR 85 km (53 mi) SW of here earthquakes near Washington 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. 1.9 6 km SSW of Falls City, Oregon
  2. 1.7 5 km SE of Rose Lodge, Oregon
  3. 2.0 10 km E of Lincoln Beach, Oregon
  4. 1.8 6 km NNE of Falls City, Oregon
  5. 1.7 13 km N of Summit, Oregon
  6. 2.3 1 km NNE of Lincoln Beach, Oregon
  7. 2.0 0 km NE of Rose Lodge, Oregon
  8. 1.7 10 km SSW of Netarts, Oregon
  9. 1.6 15 km SSE of Rose Lodge, Oregon
  10. 1.8 9 km ESE of Rose Lodge, Oregon
  11. 1.6 3 km SE of Beaver, Oregon
  12. 1.7 6 km NNE of Falls City, Oregon
  13. 1.5 5 km ENE of Sheridan, Oregon
  14. 1.7 4 km S of Fort Hill, Oregon
  15. 1.5 6 km W of Dallas, 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.