QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

11 km SE of Hebo, Oregon

· 17 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tillamook County 32 kmYamhill County 35 kmPolk County 41 kmLincoln County 60 kmWashington County 66 kmBenton County 79 kmClatsop County 95 kmMarion County 97 kmColumbia County 100 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 2.3 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Tillamook County, 32 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3358 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 74 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 45.1703, -123.7472. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tillamook County, OR 32 km (20 mi) S of here earthquakes near Tillamook County
Yamhill County, OR 35 km (22 mi) WSW of here earthquakes near Yamhill County
Polk County, OR 41 km (25 mi) NW of here earthquakes near Polk County
Lincoln County, OR 60 km (37 mi) NNE of here earthquakes near Lincoln County
Washington County, OR 66 km (41 mi) SW of here earthquakes near Washington County
Benton County, OR 79 km (49 mi) NNW of here earthquakes near Benton County

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

Aftershocks so far

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

  1. 1.6 23 km ESE of Tillamook, Oregon
  2. 1.7 6 km WNW of Dallas, Oregon
  3. 1.6 Oregon
  4. 1.7 21 km W of Pacific City, Oregon
  5. 1.8 23 km W of Yamhill, Oregon
  6. 1.5 3 km ESE of Rose Lodge, Oregon
  7. 1.9 5 km S of Lincoln City, Oregon
  8. 2.1 12 km WSW of Neskowin, Oregon
  9. 2.1 17 km SSE of Rose Lodge, Oregon
  10. 2.0 3 km WSW of Oceanside, Oregon
  11. 1.5 2 km ESE of Rose Lodge, Oregon
  12. 1.6 12 km ESE of Hebo, Oregon
  13. 1.6 3 km S of Fort Hill Census Designated Place, Oregon
  14. 2.5 1 km S of Tillamook, Oregon
  15. 1.9 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.