QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

11 km NNW of Sheridan, Oregon

· 19 km deep · released about 6.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yamhill County 11 kmPolk County 33 kmTillamook County 38 kmWashington County 48 kmLincoln County 72 kmMarion County 75 kmBenton County 78 kmColumbia County 88 kmMultnomah County 89 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
19 km below the surface
Felt
no reports yet
Nearest
Yamhill County, 11 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1585 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 6.8 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 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 45.1952, -123.4357. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yamhill County, OR 11 km (7 mi) WSW of here earthquakes near Yamhill County
Polk County, OR 33 km (20 mi) N of here earthquakes near Polk County
Tillamook County, OR 38 km (24 mi) SE of here earthquakes near Tillamook County
Washington County, OR 48 km (30 mi) SSW of here earthquakes near Washington County
Lincoln County, OR 72 km (45 mi) NNE of here earthquakes near Lincoln County
Marion County, OR 75 km (47 mi) WNW of here earthquakes near Marion County

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

Aftershocks so far

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

  1. 1.7 5 km SE of Rose Lodge, Oregon
  2. 2.0 4 km NNE of Lafayette, Oregon
  3. 1.8 6 km NNE of Falls City, Oregon
  4. 2.0 0 km NE of Rose Lodge, Oregon
  5. 1.7 10 km SSW of Netarts, Oregon
  6. 1.6 15 km SSE of Rose Lodge, Oregon
  7. 1.8 9 km ESE of Rose Lodge, Oregon
  8. 1.6 4 km NE of Lafayette, Oregon
  9. 1.6 3 km SE of Beaver, Oregon
  10. 1.7 6 km NNE of Falls City, Oregon
  11. 1.5 5 km ENE of Sheridan, Oregon
  12. 1.6 7 km NE of Amity, Oregon
  13. 1.7 4 km S of Fort Hill, Oregon
  14. 1.5 6 km W of Dallas, Oregon
  15. 1.7 4 km NE of Lafayette, 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.