QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

12 km ESE of Hebo, Oregon

· 17 km deep · released about 8.7 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tillamook County 32 kmYamhill County 34 kmPolk County 40 kmLincoln County 60 kmWashington County 65 kmBenton County 79 kmClatsop County 95 kmMarion County 96 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 1.6 (ml)
Depth
17 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Tillamook County, 32 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 566 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 8.7 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 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.7 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 45.1693, -123.7325. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tillamook County, OR 32 km (20 mi) S of here earthquakes near Tillamook County
Yamhill County, OR 34 km (21 mi) WSW of here earthquakes near Yamhill County
Polk County, OR 40 km (25 mi) NW of here earthquakes near Polk County
Lincoln County, OR 60 km (38 mi) NNE of here earthquakes near Lincoln County
Washington County, OR 65 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. 1.9 3 km S of Fort Hill, Oregon
  2. 2.6 3 km SE of Rose Lodge, Oregon
  3. 1.9 21 km W of Forest Grove, Oregon
  4. 2.0 7 km WNW of McMinnville, Oregon
  5. 1.8 4 km ENE of Lincoln Beach, Oregon
  6. 2.2 10 km W of Cape Meares, Oregon
  7. 1.6 2 km SW of Oceanside, Oregon
  8. 1.6 4 km NE of Falls City, Oregon
  9. 1.5 2 km NW of Sheridan, Oregon
  10. 1.6 24 km NNW of Sheridan, Oregon
  11. 1.8 8 km W of Falls City, Oregon
  12. 1.6 5 km W of Dallas, Oregon
  13. 1.7 9 km WSW of Falls City, Oregon
  14. 2.2 9 km E of Lincoln Beach, Oregon
  15. 1.6 3 km S of Fort Hill, 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.