QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

29 km W of Neskowin, Oregon

· 30 km deep · released about 1,200 lb of TNT

10 km30 km60 km120 km N Tillamook County 57 kmLincoln County 67 kmPolk County 80 kmYamhill County 82 kmBenton County 104 kmWashington County 107 kmClatsop County 109 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 3.1 (ml)
Depth
30 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Tillamook County, 57 km NE
Nearest mapped fault
Stonewall anticline, 7 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3079 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 290,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 13,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,100× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.2× more

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 45.1558, -124.3488. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tillamook County, OR 57 km (35 mi) SW of here earthquakes near Tillamook County
Lincoln County, OR 67 km (42 mi) NNW of here earthquakes near Lincoln County
Polk County, OR 80 km (50 mi) WNW of here earthquakes near Polk County
Yamhill County, OR 82 km (51 mi) W of here earthquakes near Yamhill County
Benton County, OR 104 km (64 mi) NW of here earthquakes near Benton County
Washington County, OR 107 km (67 mi) WSW of here earthquakes near Washington County

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

Aftershocks so far

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

  1. 2.6 3 km SE of Rose Lodge, Oregon
  2. 2.2 58 km W of Oceanside, Oregon
  3. 1.5 31 km W of Neskowin, Oregon
  4. 1.8 4 km ENE of Lincoln Beach, Oregon
  5. 2.2 10 km W of Cape Meares, Oregon
  6. 1.6 2 km SW of Oceanside, Oregon
  7. 2.5 49 km WNW of Lincoln City, Oregon
  8. 2.0 32 km W of Neskowin, Oregon
  9. 2.2 9 km E of Lincoln Beach, Oregon
  10. 2.1 43 km W of Neskowin, Oregon
  11. 2.0 5 km NE of Lincoln Beach, Oregon
  12. 2.5 26 km WNW of Lincoln City, Oregon
  13. 1.7 5 km SE of Rose Lodge, Oregon
  14. 2.0 10 km E of Lincoln Beach, Oregon
  15. 2.3 1 km NNE of Lincoln Beach, 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.